Cognitive Communication Research Articles

NCOG-44. EXPLORING THE IMPACT OF PRE-OPERATIVE MAJOR DEPRESSIVE DISORDER ON POSTOPERATIVE OUTCOMES IN PATIENTS UNDERGOING SURGICAL EXCISION OF MENINGIOMAS

Abstract INTRODUCTION Meningiomas are prevalent brain tumors that can cause significant morbidity for patients. Major depressive disorder (MDD), especially in the setting of other medical conditions, is associated with poor prognoses and increased mortality. This study aims to investigate whether pre-operative MDD is a risk factor for postoperative mortality and cognitive impairment in patients with meningiomas undergoing surgical excision. METHODS A retrospective cohort study was conducted using the TriNetX database including adults undergoing craniotomy for meningioma excision, one group comprising patients with pre-operative MDD and the other without. Propensity-score matching was performed to control for age, sex, race, ethnicity, history of cognitive impairment, neurodegenerative diseases, other psychiatric disorders, and socioeconomic barriers to care. Primary outcomes were postoperative mortality, depressive episodes, and cognitive impairment measured within 5 years postoperatively. RESULTS After matching, the study included 289 patients per cohort. Postoperative mortality rates for patients with pre-operative MDD compared to those without were similar (11.42% vs 9.69%, RR: 1.179, 95% CI: 0.732-1.898). Patients with MDD had a significantly higher prevalence of postoperative depressive episodes compared to those without MDD (64.71% vs 38.06%, RR: 1.7, 95% CI: 1.434-2.015). There were no statistically significant differences between the two groups in the prevalence of attention and concentration deficits (5.88% vs 4.15%, RR: 1.417, 95% CI: 0.689-2.913), cognitive communication deficits (8.99% vs 6.57%, RR: 1.368, 95% CI: 0.775-2.416), or executive function deficits (3.46% vs 3.46%, RR: 1, 95% CI: 0.423-2.366). CONCLUSION This study suggests no significant relationship between pre-operative MDD and post-operative mortality and cognitive deficits in patients undergoing meningioma resection. However, the risk of experiencing a depressive episode within 5 years post-operation is very high, especially in those with pre-operative MDD. Therefore, preoperative psychiatric evaluation and postoperative monitoring in patients with meningiomas and MDD are crucial. Further research is warranted to elucidate underlying mechanisms and relationships.

NCOG-41. COMPARATIVE ANALYSIS OF MORTALITY AND SHORT-TERM SIDE EFFECTS IN PATIENTS WITH GLIOBLASTOMA MULTIFORME TREATED WITH TEMOZOLOMIDE VERSUS TEMOZOLOMIDE PLUS BEVACIZUMAB CHEMOTHERAPY

Abstract INTRODUCTION Glioblastoma multiforme (GBM) is a highly aggressive primary brain tumor in adults with limited treatment options and poor prognosis. Temozolomide (TMZ) chemotherapy is the standard treatment for GBM, but alternative therapies have shown limited success. Bevacizumab (BEV), a monoclonal antibody targeting vascular endothelial growth factor (VEGF), is used to restrict GBM growth and spread. This study evaluates the efficacy of combining TMZ with BEV compared to TMZ alone in managing GBM. METHODS A retrospective cohort study was conducted using TriNetX database data, focusing on patients diagnosed with GBM and receiving chemotherapy. Cohorts were defined by treatment: TMZ plus BEV versus TMZ alone. Propensity-score matching balanced baseline characteristics, including demographics and health conditions. Primary outcomes included mortality rates and short-term side effects within the first year of treatment, such as cognitive communication deficits, headache, dizziness, insomnia, and nausea/vomiting. RESULTS After matching, 922 patients were included in each cohort. There were no significant demographic differences post-matching. The mortality rate was higher in the TMZ plus BEV group compared to TMZ alone (51.30% vs. 36.98%, RR: 1.387, 95% CI: 1.249-1.541). However, TMZ plus BEV was associated with a lower incidence of cognitive communication deficits (1.95% vs. 4.34%, RR: 0.45, 95% CI: 0.26-0.779) and dizziness (7.27% vs. 10.52%, RR: 0.691, 95% CI: 0.513-0.93). No significant differences were found in headache, insomnia, or nausea/vomiting rates between the groups. CONCLUSION This study indicates that combining bevacizumab with temozolomide may increase mortality in GBM patients but reduce certain side effects such as cognitive deficits and dizziness. These findings emphasize the need to carefully consider the benefits and risks of different chemotherapy regimens for GBM and highlight the necessity for further research to optimize treatment strategies and improve patient outcomes.

Mind–Body Practices and Exercise in the Rehabilitation of Poststroke Aphasia, Mild Cognitive Impairment, and Dementia

Purpose: The purpose of this article is to provide speech-language pathologists (SLPs) with a background in mind–body practices and exercise to prevent and treat cognitive, language, and cognitive communication disorders from a healthy aging viewpoint. Method: An online database search was conducted using a narrative review of mind–body interventions recommended by SLPs and other rehabilitation specialists. Conclusions: Mind–body practices and exercise are a low-cost, accessible, nonpharmacological intervention that may promote beneficial outcomes for individuals who are at risk for neurologic disease. Recent research on risk factors for mild cognitive impairment and dementia suggests that the underlying disease progression may be slowed or stopped with lifestyle modification (e.g., increased physical activity). Additionally, individuals recovering from stroke could potentially experience better outcomes with lifestyle modification (e.g., stress reduction). There has been increased popular interest in mindfulness as a component of a healthy lifestyle, which suggests that both patients and therapists may be receptive to incorporating it into traditional rehabilitation practices, provided there is reasonable support for its benefits. The aim of this article is to provide a rationale for integrating mind–body practices and exercise into speech-language pathology services to decrease levels of unhealthy stress, increase physical activity, and enhance cognition and communication.

The Role of Hearing Difficulty: Cognitive-Communication and Speech-in-Noise Deficits in Adults Following Mild Traumatic Brain Injury

Purpose: Mild traumatic brain injury (TBI) has a high rate of occurrence across the lifespan. Following mild TBI (mTBI), perceived deficits in cognitive communication and hearing may be noted. This study aimed to determine if adults with a history of mTBI and hearing difficulty perceived greater degrees of cognitive-communication difficulty and performed poorer on a speech-in-noise task when compared to participants with mTBI and controls without reported hearing difficulty. Method: Adults aged 19–77 years with and without a history of mTBI were analyzed. Participants were divided into three groups: control ( n = 49), mTBI ( n = 22), and mTBI with hearing difficulty (mTBI-HD, n = 26). Perception of hearing difficulty was based on a score of ≥ 20 on the Hearing Handicap Inventory or a score ≥ 2 on the Adult Auditory Performance Scale. Self-perceived cognitive communication was measured using the Cognitive Difficulties Scale (CDS) and the La Trobe Communication Questionnaire (LCQ). Speech-in-noise performance was measured using the low-cue speech recognition threshold (SRT) from the Listening in Spatialized Noise–Sentences (LiSN-S) test. Results: Adults in the mTBI-HD group reported significantly greater degrees of cognitive-communication difficulties (higher CDS and LCQ scores) and exhibited significantly poorer speech-in-noise performance on the low-cue LiSN-S condition when compared to the control and mTBI groups. Results also revealed significant correlations between the LiSN-S low-cue SRT and perceived cognitive communication on the CDS. Conclusions: Results of the current study indicate that adults with a history of mTBI and hearing difficulty experience greater subjective cognitive-communication difficulties and perform more poorly on difficult speech-in-noise tasks than adults who do not experience self-perceived hearing difficulties. The results of this study support the consideration of hearing and cognitive-communication difficulties when determining appropriate speech, language, and hearing assessment, treatment, and intervention strategies for individuals following mTBI.

Measuring Impairment-Specific Gains in Individual Cognitive Rehabilitation Through a Systematic Therapy Protocol.

This study investigated treatment-induced performance gains in memory function following therapy through the Intensive Cognitive Communication Rehabilitation (ICCR) program for young adults with acquired brain injury (ABI). We aimed to determine the utility of a novel approach to measuring memory performance improvement across semesters of therapy using (a) systematic treatment tasks called Individualized Quantitative Protocols (IQPs) as compared to (b) standardized measures of memory function. Retrospective IQP data spanning five consecutive ICCR semesters were collected from patients (N = 13) with ABI. Raw task-accuracy data were scaled to account for task difficulty gradation. Linear mixed-effects models (LMMs) were used to evaluate the degree of memory improvement-measured by scaled IQP scores-as a function of therapy duration, age, time postinjury, and aphasia; pre- to posttreatment effect sizes were also calculated. For comparison, similar LMMs were run using standardized metrics of memory abilities as the outcome measure. Results showed significant treatment-induced improvements, with gains at the session level (β = 2.76; t = 2.23; p = .047), when improvement was measured using IQP scaled scores. Standardized metrics did not show significant improvement as a function of therapy. Effect size analysis mirrored LMM results, with a large (d = 0.92, 95% confidence interval [0.35, 1.49]) pre- to posttreatment effect when change was measured using IQP scaled scores and a small effect for standardized measures. This preliminary study demonstrates the utility of a granular, individualized metric to index significant impairment-based performance gains following ICCR treatment. These results introduce promise for future analysis of complex treatment data. Additionally, they provide another lens with which to assess treatment progress and its significance. https://doi.org/10.23641/asha.27045937.

Toward the Realization of a Team Approach that Places the Person with Cognitive Communication Disorders at the Center

Toward the Realization of a Team Approach that Places the Person with Cognitive Communication Disorders at the Center

Development and validation of MyCommunication-Adults, a self-report communicative participation measure.

People with communication problems experience challenges in participation. Optimizing communicative participation for this population is an important outcome of speech and language therapy. Participation experiences are best assessed from the patient's perspective, using a patient-reported outcome measure (PROM). The Communicative Participation Item Bank (CPIB) has been developed to identify perceived problems in communicative participation. However, previous research has shown that the item bank does not cover all domains and concepts of communicative participation, contains general communication items, and is not suitable for all people with communication problems. To develop a comprehensive PROM aimed at measuring communicative participation for all adults with communication problems and test its content validity. An initial pool of 242 items was based on three sources: relevant content from an earlier literature review and concept elicitation study, and the translation of the items of the CPIB. This item pool was pilot-tested for comprehensibility and comprehensiveness using cognitive debriefing interviews in adults with different communication problems (speech, language, voice, hearing and cognitive communication disorders). This resulted in a second version of the item bank. The content validity of this version was tested in a group of professionals. The last (third) version of 133 items was tested for content validity in a second, new group of adults with various communication problems. The initial pool of 242 items was developed and pilot-tested in 27 adults with different communication problems. After modifications, 161 items remained, which were tested in a content validity study with 25 people with different communication problems and five professionals (in the field of speech and language therapy and speech and language research). The professionals considered 91.9% of the item bank relevant and comprehensible, and comprehensive by adding two items. The item bank was then considered relevant, comprehensible and comprehensive by the group of adults with communication problems. A total of 133 items remained in the item bank, related to the International Classification of Functioning, Disability and Health (ICF) Activities and Participation domains 'mobility', 'self-care', 'domestic life', 'interpersonal interactions and relationships', 'major life areas' and 'community, social and civic life'. MyCommunication-Adults is an item bank for measuring communicative participation in adults with communication difficulties. The next step is to test the psychometric properties of the item bank, in order to establish a final item bank. The refined description of the construct of communicative participation can already be used for participation-focused goal-setting between individuals with communication problems and speech and language therapists. What is already known on the subject The CPIB was developed to measure communicative participation in community-dwelling adults with communication problems. The item bank does not cover all domains and concepts of communicative participation, contains general communication items and not all questions seem to be relevant for specific target groups (e.g., hearing population). What this paper adds to the existing knowledge This study presents a refined description of the construct of communicative participation and the development of a new comprehensive PROM aimed at measuring this construct for all adults with communication difficulties. The development of the PROM is based on a previously conducted literature review and concept elicitation study. This study describes the development process of this new PROM, called MyCommunication-Adults, and the assessment of its content validity. What are the potential or actual clinical implications of this work? The refined description of the construct of communicative participation can be used for participation-focused goal-setting between individuals with communication problems and speech and language therapists.

Impact of internet contact on the ideological and mental health education of university students

In the Internet era, the communication environment of university students’ ideological and mental health education (IMHE) has become more complex. Few studies have focused on the communication effect of Internet contact on the IMHE of university students. This study adopts a questionnaire survey method to explore Internet contact and IMHE of 2294 university students. The study found that Internet was the most important information source for university students. Nearly half of the university students spent 2–5 hours online per day for entertainment or fragmented learning. Educational films, communication and discussion, and classroom teaching were the three most popular forms of IMHE for university students, while comments on current events, psychological counseling, and national policies and regulations were the three favorite contents. Internet contact during (ICD) had significant impacts on the cognitive and behavioral communication effect of IMHE among Chinese university students. The emotional dimension had the best communication effect, followed by behavior and will, and finally the cognitive dimension. After conducting IMHE, university students had stronger emotional management abilities and were more optimistic. This finding suggested that when developing and implementing IMHE intervention for university students in schools, special attention should be paid to the impact of ICD differences on the communication effect of IMHE, especially cognitive communication needed improvement.

A cognitive communication jamming strategy based on Transformer and Deep Reinforcement Learning

The advent of sophisticated communication technologies, such as cognitive radio and anti-jamming techniques, has significantly elevated the challenge of disrupting enemy communications. Nevertheless, the inherent openness of wireless communications remains a vulnerability that can be exploited to interfere with them. Some contemporary Reinforcement Learning (RL)-based jamming strategies examine methods for rapidly identifying the optimal jamming strategy for a specific modulated signal. However, such algorithms lack the flexibility and responsiveness required to effectively counter the enemy’s evolving communication strategies. To address this issue, we propose a Transformer and Deep Reinforcement Learning (DRL)-based jamming strategy that can be trained to identify jamming methods for multiple digital and analog signals. In particular, the Transformer Encoder is employed as a network for DRL to process the state information pertaining to the enemy communication. Subsequently, the decision module of the Double Deep Q Network (DDQN) is utilized to select the jamming action based on the processed information. Furthermore, we have devised a reward function and constructed an invalid jamming list, with the objective of selecting an action that requires low power consumption and enhances the convergence speed of the algorithm. The experimental results demonstrate that the algorithm proposed in this paper exhibits notable performance advantages in comparison to other networks and DRL algorithms.

Effects of a psychological first aid (PFA) based on the SIX Cs model on acute stress responses in a simulated emergency.

The SIX Cs model, a neuropsychological framework for psychological first aid, addresses acute stress responses that may lead to functional failure and heighten the risk for posttraumatic stress disorder. Unlike emotional interventions, this model prioritizes Cognitive Communication to diminish emotional overwhelm and bolster cognitive functioning. It introduces a Challenge for active engagement, Control for cognitive management of situations, Commitment from the helper to reduce loneliness, and Continuity to ensure narrative coherence. This study evaluates the SIX Cs model's effectiveness in an experimental setup to alleviate acute stress reaction symptoms. Sixty-three participants voluntarily participated. They were randomly assigned to the SIX Cs intervention (experimental) or to supportive emotional expression (control). They listened to a 3-min audio recording of a real emergency 911 phone call. Interventions were provided before and after listening to the recording. Before, immediately after, and 5 min later (recovery), participants' anxiety, heart rate variability, and mental resilience levels were measured. For all three outcomes, the Time × Group interactions were statistically significant. Follow-up analyses revealed that the SIX Cs participants showed lower anxiety and less reductions in heart rate variability and resilience than controls immediately after the stressor. Furthermore, the SIX Cs participants recovered faster on all three outcomes compared to controls. The results demonstrate the superior effect of the psychological first aid based SIX C's protocol over control in all outcomes, immediately after a simulated stressor and 7 min later as well as possible contribution for posttraumatic stress disorder risk reduction. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Tackling Few-Shot Challenges in Automatic Modulation Recognition: A Multi-Level Comparative Relation Network Combining Class Reconstruction Strategy.

Automatic Modulation Recognition (AMR) is a key technology in the field of cognitive communication, playing a core role in many applications, especially in wireless security issues. Currently, deep learning (DL)-based AMR technology has achieved many research results, greatly promoting the development of AMR technology. However, the few-shot dilemma faced by DL-based AMR methods greatly limits their application in practical scenarios. Therefore, this paper endeavored to address the challenge of AMR with limited data and proposed a novel meta-learning method, the Multi-Level Comparison Relation Network with Class Reconstruction (MCRN-CR). Firstly, the method designs a structure of a multi-level comparison relation network, which involves embedding functions to output their feature maps hierarchically, comprehensively calculating the relation scores between query samples and support samples to determine the modulation category. Secondly, the embedding function integrates a reconstruction module, leveraging an autoencoder for support sample reconstruction, wherein the encoder serves dual purposes as the embedding mechanism. The training regimen incorporates a meta-learning paradigm, harmoniously combining classification and reconstruction losses to refine the model's performance. The experimental results on the RadioML2018 dataset show that our designed method can greatly alleviate the small sample problem in AMR and is superior to existing methods.

ADVANTAGES AND DISADVANTAGES OF STUDENTS’ GROUP WORK IN TEACHING FOREIGN LANGUAGES AT UNIVERSITY

The aim of the article is analysing the advantages and disadvantages of group work for students while teaching foreign languages at university, showing the feasibility of using group work in higher edu- cation. Methods of analysis and systematization of primary sources, interviews, questionnaires, and focus groups were used during the consideration of the problem. The process of teaching English in higher education has certain features that are associated with dif- ferent initial levels of language training of freshmen; the number of hours to study the subject; the number of groups; and sometimes absent enthusiasm for learning a foreign language. We emphasize that group work plays an important role in the educational process, and its introduction into the educational process should be one of the main tasks for students of philological specialties. Practice has proved that high-quality training in foreign languages for philological specialties can be carried out through the introduction of mod- ern educational technologies, such as: vocational training, project methodology, technology, such as: voca- tional training, project methodology, technology of fixing and distance learning, information and commu- nication technologies, and educational and control work. The study found that the use of interactive learn- ing technology involves seeking help in communication, including cognitive communication and constructiv- ist methods of teaching a foreign language. The facts proved that the use of innovative methods of teach- ing English and multimedia teaching methods can enhance the motivation of students to study foreign lan- guages, provide access to new alternative sources of information, develop independent psychological activ- ity, and develop communication skills, intercultural and professional abilities. Interactive technologies and online resources play an important role in group work while learning for- eign languages, providing an effective and engaging learning process. They promote active interaction be- tween students, stimulate involvement in language learning and improve language skills. To determine the advantages and disadvantages of group work, we conducted interviews with teach- ers and students to collect their impressions and thoughts about group work in the context of teaching for- eign languages. Subsequently, the reviews of teachers and students about their experience in groups dur- ing the study of foreign languages were analysed. Questionnaires were compiled, which included questions about impressions and thoughts about group work in the context of studying foreign languages. The questions concerned the advantages and dis- advantages of this training method, the efficiency from group work, the influence on motivation, etc. Fo- cus groups were held with students and separately with teachers to discuss their impressions and thoughts about group work. This allowed us to gain a deeper understanding of different points of view and identi- fy general trends. In group work during the study of foreign languages, the teacher and students play different roles, each of which has its own importance for successful learning. We will discuss the role of the teacher-facili- tator. The teacher acts as an organizer and leader of group work, promoting structured learning and prob- lem solving. Students actively interact with each other and with the teacher, exchanging ideas and opin- ions, completing tasks and solving problems. Scientists have demonstrated that the active participation of students in group work contributes to the improvement of critical thinking and the development of com- munication skills. The use of group work while teaching foreign languages at university has its advantages and disadvantages. On the one hand, it promotes the development of communication skills, and stimulates cooperation and motivation of students. On the other hand, there may be a risk of social blind steering, problems with the distribution of responsibilities and conflicts between group members. It has been concluded that it is important to properly organize and control the process of group work to achieve maximum efficiency in teaching foreign languages.

The Influence of Kapalabhati on Working Memory and Phasic Heart Rate Variability.

Cognitive communication abilities, such as working memory (WM), are vital for accomplishing daily activities and are also important for higher-order processes such as planning and problem-solving. The current study investigates the simultaneous effect of kapalabhati (KBH) on WM and phasic heart rate variability (HRV). Twenty participants who fulfilled the inclusion and exclusion criteria, with an average age of 23.65±3.07 years (mean±SD), were recruited for the study. Prior to data collection, the participants underwent a seven-day orientation to maintain uniformity in KBH practice. EKGs were assessed using a 16-channel polygraph system arranged in a standard limb lead II configuration. WM was assessed using E-Prime version 2.0 (Psychology Software Tools, Sharpsburg, PA, USA). There was a significant increase in accuracy after the immediate KBH practice in all three conditions of the WM task (i.e., n-back task: 0-back, 1-back, and 2-back). However, there was also an increase in reaction time. Repeated measures ANOVA of HRV measures showed statistically significant changes in mean rhythm-to-rhythm (RR) intervals, heart rate (HR), number of adjacent N-N intervals over 50 milliseconds (NN50), percentage of successive normal sinus RR intervals greater than 50 milliseconds (pNN50 RR), low frequency (LF), and high frequency (HF), with HR, NN50, pNN50, LF, and HF all significant at p<0.001 and the LF/HF ratio significant at the p<0.01 level. The results of the current study suggest that KBH practice can modulate vagal tone or parasympathetic activity and improve WM performance. Furthermore, the parasympathetic shift found in the present study may promote better cardioprotective health and longevity.

Underwater Multi-Channel MAC with Cognitive Acoustics for Distributed Underwater Acoustic Networks.

The advancement of underwater cognitive acoustic network (UCAN) technology aims to improve spectral efficiency and ensure coexistence with the underwater ecosystem. As the demand for short-term underwater applications operated under distributed topologies, like autonomous underwater vehicle cluster operations, continues to grow, this paper presents Underwater Multi-channel Medium Access Control with Cognitive Acoustics (UMMAC-CA) as a suitable channel access protocol for distributed UCANs. UMMAC-CA operates on a per-frame basis, similar to the Multi-channel Medium Access Control with Cognitive Radios (MMAC-CR) designed for distributed cognitive radio networks, but with notable differences. It employs a pre-determined data transmission matrix to allow all nodes to access the channel without contention, thus reducing the channel access overhead. In addition, to mitigate the communication failures caused by randomly occurring interferers, UMMAC-CA allocates at least 50% of frame time for interferer sensing. This is possible because of the fixed data transmission scheduling, which allows other nodes to sense for interferers simultaneously while a specific node is transmitting data. Simulation results demonstrate that UMMAC-CA outperforms MMAC-CR across various metrics, including those of the sensing time rate, controlling time rate, and throughput. In addition, except for in the case where the data transmission time coefficient equals 1, the message overhead performance of UMMAC-CA is also superior to that of MMAC-CR. These results underscore the suitability of UMMAC-CA for use in challenging underwater applications requiring multi-channel cognitive communication within a distributed network architecture.

Intelligent jamming detection‐based robust principal components analysis in communication system for security and defense

AbstractThreats to physical layer security from jamming attacks make wireless cognitive communication systems vulnerable. Global Positioning System signal is vulnerable to these attacks. Over the last decade, several types of jamming detection techniques have been proposed, antijamming‐based classical and machine learning (ML) techniques. Most of these techniques are inefficient in detecting jammers. Thus, there is a great need for efficient and quickest jamming detection technique‐based classifier using receiver operating characteristic (ROC) curve for different threshold values with high accuracy. In this work, we compare the efficiency of the proposed orthogonal distance (OD) and score distance (SD) method‐based robust principal component analysis (PCA) in ML classification in detecting jamming signals. Two hypotheses are proposed to distinguish between the presence and absence attack problem. Using this compressed data matrix obtained from modulated wideband converter (MWC) structure via centralized cooperation directly as input of the proposed classifier combined‐based ROC curve for real‐time detection scenarios. The performance of this proposed algorithm‐based robust PCA was evaluated and compared using the detection anomaly rate (DAR%), and false alarm rate (FAR%), area under curve (AUC), and accuracy. The performance of obtained results is good.

Unmanned aerial vehicle-assisted wideband cognitive radio network based on DDQN-SAC

Cognitive radio (CR) systems have emerged as effective tools for improving spectrum efficiency and meeting the growing demands of communication. This study focuses on a flexible CR system based on opportunistic spectrum access technology, which enables secondary networks to efficiently utilize unoccupied spectrum resources for information transmission by actively sensing the spectrum utilization of primary networks. Specifically, we introduce unmanned aerial vehicles (UAV) technology into the CR system to further enhance its flexibility and adaptability, which enables the transmission efficiency of low-altitude UAV networks. In this CR system, UAVs are employed for more flexible spectrum management. The objective of this research is to maximize the average achievable rate of SUs by jointly optimizing the trajectories of secondary UAV, the trajectories of primary UAV, the beamforming of secondary UAV, subchannel allocation and sensing time. To achieve this goal, we employ deep reinforcement learning (DRL) algorithms to optimize these variables. Compared to traditional optimization algorithms, DRL algorithms not only have lower computational complexity but also achieve faster convergence. To address the mixed-action space problem, we propose a Dueling DQN-Soft Actor Critic algorithm. Simulation results demonstrate that the proposed approach in this paper significantly enhances the performance of the CR system compared to traditional baseline schemes. This is manifested in higher spectrum efficiency and data transmission rates, while minimizing interference with the primary network. This innovative research combines drone technology and DRL algorithms, bringing new opportunities and challenges to the future development of cognitive communication systems.

Research on conceptual graph gallery-based cognitive communication method for geographical conceptual modeling

Geographic modeling is considered as an effective way to solve geographic problems. Geographic conceptual modeling is the first step of geographic modeling, in which modelers can fully exchange modeling ideas, thereby achieving a common understanding of geographic system and guiding subsequent geographic modeling process. However, due to the diverse research backgrounds of modelers, it is challenging for them to exchange modeling ideas with one another. This paper provides a visual cognitive communication method for modelers by constructing a conceptual graph gallery, and then improves the efficiency of geographic conceptual modeling. A multidimensional description method that describes modeling cognition from multiple perspectives, the conceptual graph gallery that includes concept items and conceptual graphs, and the conceptual graph gallery-based cognitive communication methods are designed in this paper. Finally, a case study involving the construction of a hydrological conceptual graph gallery is designed to illustrate the feasibility of conceptual graph gallery-based cognitive communication.

The Opinions and Working Experiences of Doctors from Different Branches of Medicine Working in Turkey Concerning Speech and Language Pathologists

Objective: This study aimed to examine the thoughts, knowledge, collaborative processes, and experiences of doctors in different branches of medicine, as these comprise the occupational groups in which speech-language pathologists/therapists (SLPs) work in interdisciplinary and multidisciplinary capacities. &#x0D; Material and Method: A Google survey was created focusing on the opinions about and working experiences of doctors in different branches of medicine working in Turkey with SLPs. The questionnaire consisted of 18 questions and four parts. &#x0D; Results: The study was conducted with 116 doctors, 28.4% of whom were neurologists, 28.4% were otorhinolaryngologists, 21.6% were pediatricians, and 21.6% were other specialists. Only 25.9% (n=30) have worked with an SLP before. Speech sound disorders, fluent speech disorders, and developmental language disorders were the most frequently chosen SLP study areas among all the specialties in which doctors in all branches of medicine work. The lowest number of doctors chose swallowing disorders, followed by cognitive communication disorders and X-linked language disorders, as the field of work of SLPs. &#x0D; Conclusion: It was found that the number of SLPs working in doctors' institutions, the level of cooperation between doctors and SLPs, and doctors' knowledge about the working areas of SLPs were low. It has been observed that physicians' awareness, especially in swallowing and cognitive communication disorders, is lacking. A strong partnership between physicians and SLPs is vital for appropriate service delivery to patients. For this reason, the number of SLPs working in institutions should be increased, as should the level of knowledge among doctors in different branches of medicine concerning SLPs’ services.

Communication support in care homes for older adults: Views and reported practices of speech and language therapists and care home activities staff in the UK.

Speech and language therapists (SLTs) and care home activities staff play key roles in managing and supporting the communication needs of older residents in care homes. However, the current practice and perspectives of these two professions in the United Kingdom has not been examined. To investigate the practice patterns and views of SLTs and activities staff working in UK care homes for older adults in relation to residents' communication needs. Two online surveys, with 63 questions (SLT survey) and 46 questions (activities staff survey) in total, were created using the online platform Qualtrics. Participants were asked to consider their routine practice before COVID-19. Results were analysed using descriptive statistics and qualitative content analysis. A total of 116 valid responses were received from SLTs and 29 valid responses from activities staff. A high level of communication needs in care homes was reported by both participant groups, as was insufficient time and resources and lack of managerial encouragement in this area. SLTs reported that the majority of referrals to their service from care homes was for swallowing needs (70%). Cognitive communication difficulty was the most commonly reported communication need by SLTs (65%). Most SLTs (73%-87%) provided some level of communication intervention and considered management of residents' communication needs to be both part of the SLT role and a good investment of their time. Lack of confidence setting goals and providing direct intervention for communication needs was reported, with 25% feeling stressed at the thought of this. The main themes from free text responses about SLT service improvement were increased staff training, funding (of resources and specialist posts) and changes to service provision (referral criteria and accessibility/awareness of SLT service). Hearing impairment was the communication need most commonly reported by activities staff (43%). Participants demonstrated relatively high awareness of communication difficulty in residents and reported high levels of knowledge and confidence identifying and supporting residents' communication. Most (79%-89%) considered identifying and supporting the communication needs of residents to be part of their role and expressed interest in receiving further training in communication support. The reported activities staff data set may be positively biased. SLTs and activities staff were highly motivated to support the communication needs of care home residents. Increased training, time and resources dedicated to managing the communication needs of residents emerged as opportunities for service improvement across both data sets. What is already known on the subject There is a high level of communication need amongst older care home residents. Social interaction and relationships are important factors contributing to quality of life in this population and rely on successful communication. Speech and language therapists (SLTs) and activities staff play key roles in managing and supporting the communication needs of this client group, but the current practice and perspectives of these professions in the United Kingdom has not been examined. What this study adds A high level of communication need in care home residents was identified by both SLT and activities staff and both participant groups were motivated to address, identify and manage this need. However, insufficient time and resources, as well as a perceived lack of encouragement from managers to provide communication support/intervention, were reported by both groups. SLT practice was constrained by referral criteria and care pathways, which differed between services. Suggestions for SLT service improvement are reported. Clinical implications of this study Targeted, ongoing staff training is required in care homes to improve the communication environment and develop care home staff capacity to support residents' communication needs. There is also a call for service level improvements to increase the range of SLT practice in care homes, including a greater focus on communication needs and more specialist (e.g., dementia) SLT roles.

ASSESSMENT PRACTICES OF SPEECH AND LANGUAGE PATHOLOGISTS FOR COGNITIVE COMMUNICATION IMPAIRMENT AFTER TRAUMATIC BRAIN INJURY

Background of the Study: The aim of the present research was to examine the assessment practices of Speech-Language Pathologists for Cognitive Communication Disorders after Traumatic Brain Injury. Methodology: It was a cross-sectional survey method, a convenient sampling technique. Research was carried out from January 2021 to June 2021. The sample size was n=21, out of which n= 9 (42.8%) participants, each from Rawalpindi and Islamabad n= 3 (14.4%) participants from Lahore filled in their responses. Medium; being Online, the questionnaire was distributed either through email, WhatsApp or Facebook MessengerApp. SLPs who were undergraduates or who had no experience working with TBI clients were excluded. Questionnaire included 12 items. Responses of research participants were recorded using Google Forms and presented in the form of n (%). The data were analyzed using descriptive analysis, and chi-square analysis was performed to confirm the association between settings, city of practice and years of experience through Statistical Package of Social Sciences (SPSS) Version 22.0. Results: Speech-Language Pathologists reported that they routinely assessed (62% each) Receptive and Expressive communication. However; less than half of the participants routinely evaluated domains like verbal pragmatic skills (43.3%), functional communication (33.3%) and phonemic awareness (33.3%). SLPs assessed their clients by employing tests like MoCA (55.62%), Quick Aphasia Battery (18.75%), Cognitive Assessment (LOTCA Protocol) (14.35%) and a combination of Formal (48%) and Informal (52%) clinical interviews. Conclusion: Informal discourse assessment is incorporated more frequently as compared to informal discourse evaluation in assessment practices of Speech-Language pathologists of Pakistan for cognitive communication impairment followed by traumatic brain injury. Keywords: Brain injuries, cognitive dysfunction, language therapy, rehabilitation, speech therapy, traumatic.