Cognitive Manipulation Research Articles

Psychometric Evaluation of Cognitive and Positive Valence Tasks Chosen for the NIMH Research Domain Criteria Project.

The NIMH Research Domain Criteria (RDoC) initiative seeks to utilize multidimensional patterns of socio-cognitive behavior to improve understanding of mental illness. We aimed to evaluate the psychometric properties of a subset of RDoC tasks. Specifically, we investigated two positive valence tasks and five cognitive tasks. Participants (N = 320) were recruited through an online research platform. We used generalizability theory to estimate reliability, and factor analysis to examine factor structure. Reliability was average to excellent with some notable exceptions. Factor analysis results raised concerns about whether the factor structure of task scores aligns with the proposed RDoC model. Effects of cognitive manipulations generally supported the construct representation of tasks. Results indicate that the majority of RDoC task scores examined have acceptable reliability or can be made reliable through modest increases in task length. Future research in diverse populations is needed to better understand the factor structure of RDoC cognitive and positive valence measures.

Task-Oriented Robot Cognitive Manipulation Planning Using Affordance Segmentation and Logic Reasoning.

The purpose of task-oriented robot cognitive manipulation planning is to enable robots to select appropriate actions to manipulate appropriate parts of an object according to different tasks, so as to complete the human-like task execution. This ability is crucial for robots to understand how to manipulate and grasp objects under given tasks. This article proposes a task-oriented robot cognitive manipulation planning method using affordance segmentation and logic reasoning, which can provide robots with semantic reasoning skills about the most appropriate parts of the object to be manipulated and oriented by tasks. Object affordance can be obtained by constructing a convolutional neural network based on the attention mechanism. In view of the diversity of service tasks and objects in service environments, object/task ontologies are constructed to realize the management of objects and tasks, and the object-task affordances are established through causal probability logic. On this basis, the Dempster-Shafer theory is used to design a robot cognitive manipulation planning framework, which can reason manipulation regions' configuration for the intended task. The experimental results demonstrate that our proposed method can effectively improve the cognitive manipulation ability of robots and make robots preform various tasks more intelligently.

Understanding Child Sexual Exploitation Dynamics: Development and Validation of a Taxonomy of Recruitment and Domination Strategies.

Child sexual exploitation is a form of interpersonal violence which involves the use of manipulation, control, and coercion strategies to recruit and dominate minors. This study aimed to develop and validate a taxonomy that identifies, defines, and classifies these abusive strategies. The taxonomy was developed from an extensive literature review and its contents were validated via expert evaluation through a two-round Delphi method with 31 participants. Experts also judged the frequency of each strategy's usage to recruit and dominate the victims in sex trade, sex trafficking, sex tourism, and online sexual exploitation. The taxonomy comprises 20 specific strategies, classified into five categories: isolation, control of personal life, emotional abuse, cognitive manipulation, and behavioral domination. According to the experts, the strategy most frequently used to recruit the minors is "affective enticement", and the strategy that contributes most to the maintenance of the exploitative situation is "instrumentalization of sexuality". Nevertheless, different patterns were found regarding the frequency with which each strategy is used when considering the four manifestations of sexual exploitation separately. Delimiting the abusive strategies commonly perpetrated in child sexual exploitation improves our understanding of this complex phenomenon and could contribute to the development of effective prevention and intervention approaches.

Assessing Relations Among Visual Variables in Hotel Lobbies Using Deep Learning

To understand the relationships between cognitive variables like visual complexity, coherence, and colour contrast in interior spaces, direct numerical analysis is crucial. Conventional approaches are limited due to the brain's struggle to process visual information without cognitive manipulation. However, advancements in artificial intelligence enable direct examinations. This study used a convolutional neural network to assess the intensity of colour contrasts in images of 5-star hotel lobby interiors with high levels of coherence and complexity. The results indicated that visually complex lobby interiors have less warm-cool and dark-light contrast but more pronounced complementary contrast than coherent lobby interiors. Additionally, a negative correlation was identified between complementary and warm-cool contrasts across all perspectives. These results underscore the potential influence of specific colour contrast types on the cognitive experience of interiority.

Activity flow under the manipulation of cognitive load and training

Flexible cognitive functions, such as working memory (WM), usually require a balance between localized and distributed information processing. However, it is challenging to uncover how local and distributed processing specifically contributes to task-induced activity in a region. Although the recently proposed activity flow mapping approach revealed the relative contribution of distributed processing, few studies have explored the adaptive and plastic changes that underlie cognitive manipulation. In this study, we recruited 51 healthy volunteers (31 females) and investigated how the activity flow and brain activation of the frontoparietal systems was modulated by WM load and training. While the activation of both executive control network (ECN) and dorsal attention network (DAN) increased linearly with memory load at baseline, the relative contribution of distributed processing showed a linear response only in the DAN, which was prominently attributed to within-network activity flow. Importantly, adaptive training selectively induced an increase in the relative contribution of distributed processing in the ECN and also a linear response to memory load, which were predominantly due to between-network activity flow. Furthermore, we demonstrated a causal effect of activity flow prediction through training manipulation on connectivity and activity. In contrast with classic brain activation estimation, our findings suggest that the relative contribution of distributed processing revealed by activity flow prediction provides unique insights into neural processing of frontoparietal systems under the manipulation of cognitive load and training. This study offers a new methodological framework for exploring information integration versus segregation underlying cognitive processing.

Manipulating response times in the cognitive reflection test: Time delay boosts deliberation, time pressure hinders it

We employ the Cognitive Reflection Test (CRT) to assess the effectiveness of two widely applied cognitive manipulations which rely on constraining response times. The CRT measures the ability of a person to resist giving an immediate response that is intuitive but incorrect in favor of greater reflection to find out the correct answer. We have two treatments: a Time Pressure (TP) treatment (provide an answer within 30 s) and a Time Delay (TD) treatment (provide an answer after 60 s). We find that TD increases the frequency of correct answers, while TP increases the frequency of incorrect answers, especially incorrect answers that are not intuitive. Moreover, we confirm the existence of gender biases as already found in other studies. In particular, gender moderates the effects of the experimental treatments: TD increases the frequency of correct answers for males but not for females, while TP increases the frequency of incorrect but less intuitive answers for females but not for males. Our findings provide important insights on the effectiveness of the time manipulations that are widely used in the literature of cognition.

High-dose Agomelatine Combined with Haloperidol Decanoate Improves Cognition, Downregulates MT2, Upregulates D5, and Maintains Krüppel-like Factor 9 But Alters Cardiac Electrophysiology.

Haloperidol decanoate (HD) has been implicated in cognitive impairment. Agomelatine (AGO) has been claimed to improve cognition. We aimed at investigating the effects of HD + low- or high-dose AGO on cognition, verifying the melatonergic/dopaminergic to the cholinergic hypothesis of cognition and exploring relevant cardiovascular issues in adult male Wistar albino rats. HD + high-dose AGO prolonged the step-through latency by +61.47% (P < 0.0001), increased the time spent in bright light by +439.49% (P < 0.0001), reduced the time spent in dim light by -66.25% (P < 0.0001), and increased the percent of alternations by +71.25% (P < 0.0001), despite the reductions in brain acetylcholine level by -10.67% (P < 0.0001). Neurodegeneration was minimal, while the mean power frequency of the source wave was reduced by -23.39% (P < 0.05). Concurrently, the relative expression of brain melatonin type 2 receptors was reduced by -18.75% (P < 0.05), against increased expressions of dopamine type 5 receptors by +22.22% (P < 0.0001) and angiopoietin-like 4 by +119.18% (P < 0.0001). Meanwhile, electrocardiogram (ECG) demonstrated inverted P wave, reduced P wave duration by -36.15% (P < 0.0001) and PR interval by -19.91% (P < 0.0001), prolonged RR interval by +27.97% (P < 0.05), increased R wave amplitude by +523.15% (P < 0.0001), and a depressed ST segment and inverted T wave. In rats administered AGO, HD, or HD+ low-dose AGO, Alzheimer's disease (AD)-like neuropathologic features were more evident, accompanied by extensive ECG and neurochemical alterations. HD + high-dose AGO enhances cognition but alters cardiac electrophysiology. SIGNIFICANCE STATEMENT: Given the issue of cognitive impairment associated with HD and the claimed cognitive-enhancing activity of AGO, combined high-dose AGO with HD improved cognition of adult male rats, who exhibited minimal neurodegenerative changes. HD+ high-dose AGO was relatively safe regarding triggering epileptogenesis, while it altered cardiac electrophysiology. In the presence of low acetylcholine, the melatonergic/dopaminergic hypothesis, added to angiopoietin-like 4 and Krüppel-like factor 9, could offer some clue, thus offering novel targets for pharmacologic manipulation of cognition.

Exploring nurses' clinical judgment concerning the relative importance of fall risk factors: A mixed method approach using the Q Methodology

BackgroundNurses are pivotal in averting patient falls through their assessment of cues presented by patients and their environments, rendering clinical judgments regarding the risk of falling, and implementing tailored interventions. Despite the intricate cognitive processes entailed in nurses' judgment, no prior studies have explored their approach to assessing the risk of falling. ObjectiveThis study aimed to examine how nurses judge the risk of falling among patients with different conditions, whether there are differences in the importance of risk factors as judged by nurses, how they justify their judgments, and what attributes of the nurses influence their judgments. DesignA mixed method approach using the Q Methodology was employed. Setting(s)Three public and private hospitals in Japan. ParticipantsEighteen nurses participated in the study. MethodsParticipants were tasked with ranking 36 patient scenarios, each featuring a distinct set of fall risk factors. Subsequently, post-sorting interviews were conducted to gather insights into their typical approach to assessing fall risk and the rationale behind their ranking decisions. A by-person principal component factor extraction was employed to examine differences in the rankings of the scenarios. The interview data were analyzed descriptively to elucidate the reasons behind these discrepancies. ResultsNurses engage in complex cognitive manipulations when evaluating the risk of patient falls, drawing extensively from their wealth of experience while utilizing assessment tools to support their judgments. In essence, nurses identify patients' tendency to act alone without calling a nurse, impaired gait and cognition, sedative use, drains, and limited information sharing among healthcare professionals as key fall risks. In addition, nurses vary in the importance they attribute to certain risk factors, leading to the discrimination of three distinct judgment profiles. One group of nurses judges patients with cognitive impairment and acting alone as high risk. Another group of nurses considers patients with unstable gait and acting alone as high risk. The last group of nurses sees patients wearing slippers as high risk. The post-sorting interviews revealed that their judgments are closely related to the healthcare context and patient population. ConclusionsNurses operate within diverse contexts, wherein they interact with patients of varying characteristics, collaborate with professionals from diverse disciplines, and have access to varying levels of human and physical resources. This nuanced understanding empowers the formulation of judgments that are finely attuned to the specific context at hand. Study registrationNot registered.

A Pilot Multisensory Approach for Emotional Eating: Pivoting from Virtual Reality to a 2-D Telemedicine Intervention during the COVID-19 Pandemic.

Emotional eating (EE), or eating in response to negative emotions or stress, can be understood as a manifestation of difficulties regulating emotions among individuals with eating disorders. To date, many virtual reality treatments for eating disorders have focused on body image or exposure methods and have not exclusively targeted EE. There has been a call made by experts in the field for a "new generation" of virtual reality interventions, capable of utilizing virtual reality's potential more fully. We developed a novel emotion regulation (ER) intervention based upon virtual reality to improve EE among adults with an eating disorder diagnosis. The study hypothesized that a novel ER protocol utilizing evidence-based strategies, as well as innovative techniques, would be feasible and acceptable and show preliminary signals of effectiveness for EE. Due to COVID-19, the study pivoted from the original completely immersive intervention to a 2-D intervention deliverable over telehealth. Twenty-one patients were recruited from the Adult Eating Disorders Program within Stanford University to receive seven weekly one-hour virtual experiences (VEs) focusing on ER. Participants were not randomized but, as part of a pragmatic study design, chose between the novel VE-Emotion Regulation (VE-ER) intervention or continuing their treatment as usual. Before and after the seven sessions, participants completed an assessment by filling out online questionnaires. Overall, VE-ER treatment was feasible, and the participant and therapist acceptability of VE-ER treatment was fairly high. In terms of preliminary effectiveness, the results showed a significant reduction in the frequencies of disordered eating behaviors in both groups, but a greater improvement in EE in the VE-ER group and a significant reduction in emotion dysregulation after the treatment. This novel pilot study makes a valuable contribution to the scant literature by demonstrating the feasibility, acceptability, and preliminary effectiveness of combining somatic, multisensory, and cognitive manipulations delivered via telemedicine to help patients with EE to manage their emotions. The findings can serve as the basis for larger, controlled studies evaluating the translation of the somatic marker theory from the research literature into real-world U.S. clinic settings.

Discounting and the portfolio of desires.

The additive utility theory of discounting is extended to probability and commodity discounting. Because the utility of a good and the disutility of its delay combine additively, increases in the utility of a good offset the disutility of its delay: Increasing the former slows the apparent discount even with the latter, time-disutility, remaining invariant, giving the magnitude effect. Conjoint measurement showed the subjective value of money to be a logarithmic function of its amount, and subjective probability-the probability weighting function-to be Prelec's (1998). This general theory of discounting (GTD) explains why large amounts are probability discounted more quickly, giving the negative magnitude effect. Whatever enhances the value of a delayed asset, such as its ability to satisfy diverse desires, offsets its delay and reduces discounting. Money's liquidity permits optimization of the portfolio of desired goods, providing added value that accounts for its shallow temporal discount gradient. GTD predicts diversification effects for delay but none for probability discounting. Operations such as episodic future thinking that increase the larder of potential expenditures-the portfolio of desirable goods-increase the value of the asset, flattening the discount gradient. States that decrease the larder, such as stress, depression, and overweening focus on a single substance like a drug, constrict the portfolio, decreasing its utility and thereby steepening the gradient. GTD provides a unified account of delay, probability, and cross-commodity discounting. It explains the effects of motivational states, dispositions, and cognitive manipulations on discount gradients. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Delaying and motivating decisions in the (Bully) dictator game

We investigate experimentally how decisions in the Dictator Game are affected by cognitive manipulations aimed at promoting greater reliance on deliberation. Specifically, we run an online experiment where we have 6 distinct experimental conditions resulting from the combination of 2 conditions for the Dictator Game (non-bully: the dictator is initially endowed with all the money; bully: the initial endowment is equally split), and 3 conditions for the cognitive manipulations (time delay: decisions are delayed; motivated delay: decisions are delayed and a written motivation is required; control: no manipulation). We find that the equal initial endowment leads the dictator to get less, confirming in the online setting previous evidence from the lab. Further, our findings suggest that the request to write a motivation makes subjects take less for themselves with respect to the mere request to wait some time before choosing.

Hypnotic suggestion versus sensory modulation of bodily awareness.

Bodily awareness arises from somatosensory, vestibular, and visual inputs but cannot be reduced to these incoming sensory signals. Cognitive factors are known to also impact bodily awareness, though their specific influence is poorly understood. Here we systematically compared the effects of sensory (bottom-up) and cognitive (top-down) manipulations on the estimated size of body parts. Toward this end, in a repeated-measures design, we sought to induce the illusion that the right index finger was elongating by vibrating the biceps tendon of the left arm whilst participants grasped the tip of their right index finger (Lackner illusion; bottom-up) and separately by hypnotic suggestion (top-down), with a sham version of the Lackner illusion as an active control condition. The effects of these manipulations were assessed with perceptual and motor tasks to capture different components of the representation of body size. We found that hypnotic suggestion significantly induced the illusion in both tasks relative to the sham condition. The magnitudes of these effects were stronger than those in the Lackner illusion condition, which only produced a significantly stronger illusion than the sham condition in the perceptual task. We further observed that illusion magnitude significantly correlated across tasks and conditions, suggesting partly shared mechanisms. These results are in line with theories of separate but interacting representational processes for perception and action and highlight the influence of cognitive factors on low-level body representations.

Comparative analysis of multifaceted neural effects associated with varying endogenous cognitive load

Contemporary neuroscience has firmly established that mental state variation concurs with changes in neural dynamic activity in a complex way that a one-to-one mapping cannot describe. To explore the scenario of the multifaceted changes in neural dynamics associated with simple mental state variation, we took cognitive load – a common cognitive manipulation in psychology – as a venue to characterize how multiple neural dynamic features are simultaneously altered by the manipulation and how their sensitivity differs. Electroencephalogram was collected from 152 participants performing stimulus-free tasks with different demands. The results show that task demand alters wide-ranging neural dynamic features, including band-specific oscillations across broad frequency bands, scale-free dynamics, and cross-frequency phase-amplitude coupling. The scale-free dynamics outperformed others in indexing cognitive load variation. This study demonstrates a complex relationship between cognitive dynamics and neural dynamics, which points to a necessity to integrate multifaceted neural dynamic features when studying mind-brain relationship in the future.

Cognitive manipulation of emotional and non-emotional information in working memory of patients with depression: a rigid processing style.

Cognitive psychology is one of the important perspectives to understand depression. Compared with previous studies, recent researchers increasingly focused on the exploration of the comprehensive cognitive process of patients with depression. The cognitive operation ability of working memory is an important comprehensive cognitive process, which reflects how individuals establish representations. This is the basis for the formation of experience and schema. The purpose of this study is to explore whether there are abnormalities in cognitive manipulation in patients with depression, and to analyze its possible role in the pathogenesis and maintenance of depression. In this cross-sectional study, depressed patients was enrolled in the clinical psychology department of Beijing Chaoyang Hospital as the case group, while healthy individuals were recruited in the hospital and social meetings as the control group. Hamilton Depression Scale (HAMD)-17, Hamilton Anxiety Scale (HAMA) and rumination thinking scale (RRS) were adopted as measurement tools, and working memory operation tasks were adopted to test each subject, so as to measure their cognitive operation ability. A total of 78 depressed patients and 81 healthy individuals completed the study. The results showed that the rumination level of the case group was higher than that of the control group, and the difference was significant first; Second, in the "inconsistent" condition, the case group under different stimulus conditions when the response was significantly higher than the control group; Thirdly, the "cognitive operation consumption" value of the case group was significantly higher than that of the control group under the three stimulus conditions, among which, the operational cost value of sadness-neutral stimulus was significantly higher than that of the other two stimulus conditions. Patients with depression had obvious difficulties in cognitive manipulation of information with different values in working memory, which reflected in the fact that it took them longer time to adjust the relationship between information and established new representations. Among them, patients with depression had a higher degree of cognitive manipulation of sad stimuli, indicating that their abnormal cognitive manipulation had certain emotion specificity. Finally, the difficulty of cognitive operation was closely related to the level of rumination.

ACL Research Retreat IX Summary Statement: The Pediatric Athlete, March 17-19, 2022; High Point, North Carolina.

ACL Research Retreat IX Summary Statement: The Pediatric Athlete, March 17-19, 2022; High Point, North Carolina.

EVOLUTION TREND AND HOT ISSUES OF GROUNDWATER ENVIRONMENT RESEARCH IN RECENT 40 YEARS BASED ON EMOTIONAL BEHAVIOR CHANGES: A SUMMARY OF SCIENTIFIC ECONOMETRIC ANALYSIS FROM 1981 TO 2021

BackgroundGroundwater pollution has become an important factor restricting regional economic development and environmental protection. The prevention and control of groundwater pollution has always been the focus of water resources management scholars. The purpose of this study is to systematically evaluate the knowledge system of groundwater pollution prevention and control from 1981 to 2021, and to explore the research trend and hot spots of groundwater pollution prevention and control knowledge system. And the emotional and behavioral changes of water conservancy workers.Topics and MethodsIn the field of groundwater environment from 1981 to 2021, taking “science network” (WOS) as the literature source database, the literature system and bibliometric characteristics were studied by means of bibliometrics, knowledge atlas and collaborative research. Occurrence analysis. This paper attempts to evaluate and sort out the similarities and differences between frontier hotspots and evolution trends in the field of groundwater environment. At the same time, the emotional behavior of water conservancy workers in various places was investigated. In order to investigate the regulation of psychological expectation on the emotional arousal effect of negative stimulation and its corresponding neural mechanism when excluding any cognitive strategy involvement in the emotional expectation stage. It is intended to mainly manipulate the predictability (predictable / unpredictable) and potency (negative / neutral) of the target stimulus. The experimental task is the expected stage from the emergence of the negative cue to the presentation of the negative target. The subjects are required to only pay attention to the fixation point in the center of the screen after watching the negative cue and do not take any coping strategies for the subsequent negative stimulus. In order to eliminate the fatigue effect, the experiment is divided into four sections. At the end of each section, the subjects took a proper rest, and then tested the success degree of the subjects following the experimental guidance requirement of “only pay attention to the fixation point from the presentation of the cord stimulus to the appearance of the target stimulus”, and scored with a 5-point scale (1 = very unsuccessful, 5 = very successful) to evaluate the success degree of non cognitive manipulation. 36 healthy subjects, 18 men and 18 women, were recruited to rule out possible gender differences in the process of emotional expectation (Galli et al., 2011). All subjects filled in the state trait anxiety questionnaire and Beck depression questionnaire before participating in the experiment to eliminate the possibility of anxiety disorder or depressive tendency. The experiment intends to simultaneously record the activity level of peripheral physiological indexes such as event-related brain potential (ERP), skin electricity, heart rate and skin temperature and frowning electromyography (electromyography index directly related to the negative expression of subjects under negative stimulation), so as to comprehensively reveal how the EEG, peripheral physiological activity level and electromyography activity level related to negative emotion change with expected factors.ResultsGroundwater pollution prevention and control is a general theory in the field of environmental risk of groundwater at home and abroad. There are many core trends in groundwater pollution prevention and control. This paper gives the evolution track, development stage and dynamic change of the research topic.ConclusionIn recent 40 years, the research on the change law of hot spot migration can be divided into three stages. 2009 is a watershed, and the problem has undergone earth shaking changes. Through the visual analysis of knowledge base system, 12 research hotspots are summarized. Explore the change law of topics in the form of dynamic knowledge map, observe the migration of research hotspots, and provide evidence and discussion for research trends and recent hotspots.AcknowledgementsSupported by a project grant from Key R&D Program of Shaanxi Province (Grant No. D5140200023) and Xi 'an Geological Survey, China Geological Survey (Grant No.211527180141).

Social value orientation and conditional cooperation in the online one-shot public goods game

We report two studies on the role of altruism and reciprocity in the online one-shot Public Goods Game (PGG). In study 1 we run an experiment to see whether the disposition to donate (altruistic/prosocial disposition according to the Social Value Orientation scale (SVO), Murphy et al., 2011) and the disposition to reciprocate (disposition to be a conditional cooperator measured with the strategy method (dCC), Fischbacher et al., 2012) explain contribution in the PGG. In study 2 we run a similar experiment where we add the manipulation of cognition by means of two treatments: time pressure (to induce less deliberative decisions) and motivated delay (to induce more deliberative decisions). Overall, we find that: (i) a higher SVO score goes with higher contributions; (ii) higher beliefs go with higher contributions; (iii) dCC does not appreciably account for contributions; (iv) conditional contributions elicited with the strategy method predict actual contribution for the stated belief; (v) while (i)–(iv) are unaffected by treatments, contributions under motivated delay are about 10% higher than under time pressure. Our experimental evidence suggests that altruism, beliefs and predicted contributions account for contributions regardless of the extent of deliberation, which however seems to impact positively and independently contributions.

Nineteenth- and twentieth-century brain maps relating to locations and constructions of brain functions

ABSTRACT This article is an outline of the transition in “brain maps” used to illustrate locations of cortical “centers” associated with movements, sensations, and language beginning with images from Gall and Spurzheim in the nineteenth century through those of functional magnetic resonance imaging in the twenty-first century. During the intervening years, new approaches required new brain maps to illustrate them, and brain maps helped to objectify and naturalize mental processes. One approach, electrical stimulation of the cerebral cortex—exemplified by Fritsch and Hitzig in 1870, Ferrier in 1873, and Penfield by 1937—required brain maps showing functional centers with expanded and overlapping boundaries. In another approach, brain maps that linked cortical centers to account for the complex syndromes of aphasia, apraxia, alexia, and agraphia were initially constructed by Baginsky in 1871, Wernicke in 1874, and Lichtheim in 1885, then later by Lissauer in 1890, Dejerine in 1892, and Liepmann in 1920, and eventually by Geschwind in 1965 and others through the late twentieth century. Over that intervening time, brain maps changed from illustrations of points on the cerebral cortex where movements and sensations were elicited to illustrations of areas (centers) associated with recognizable functions to illustrations of connections between those areas that account for complex symptoms occurring in clinical patients. By the end of this period, advancements in physics, mathematics, and cognitive science resulted in inventions that allowed brain maps of cortical locations derived from cognitive manipulations rather than from the usual electrical or ablative manipulations. “Mental” dependent variables became “cognitive” independent variables.

Linguistic strategies used by the Ministry of Health and Childcare in Zimbabwe to sensitise citizens on COVID-19

This study explores the use of Shona and English in COVID-19 pandemic adverts by the Ministry of Health and Child Care in Zimbabwe. Specifically, the research establishes and explains the significance of linguistic strategies which were used by the Ministry of Health and Child Care when disseminating information to reduce the risk of COVID-19 infection, spread and management in the print media. The purpose of the study is to demonstrate that language use in this context is an act of cognitive manipulation where the reader is strategically coerced to take up the message. The study is a qualitative research enterprise and it used document analysis as the method of data collection. Data is analysed using Discourse Analysis and conceptual metaphor theory. The study established that the Ministry of Health and Child Care employed metaphors, slang, code switching, interrogatives, translation and borrowing to guide interpretation and conceptualisation of information in their adverts. The study concludes that by using these devices, the ministry exploits shared knowledge and then appeals to cognition through interrogatives to subtly garner support, manipulate opinion and manufacture compliance through the adverts.

Breaking Plausibility Without Breaking Presence - Evidence For The Multi-Layer Nature Of Plausibility.

A novel theoretical model recently introduced coherence and plausibility as the essential conditions of XR experiences, challenging contemporary presence-oriented concepts. This article reports on two experiments validating this model, which assumes coherence activation on three layers (cognition, perception, and sensation) as the potential sources leading to a condition of plausibility and from there to other XR qualia such as presence or body ownership. The experiments introduce and utilize breaks in plausibility (in analogy to breaks in presence): We induce incoherence on the perceptual and the cognitive layer simultaneously by a simulation of object behaviors that do not conform to the laws of physics, i.e., gravity. We show that this manipulation breaks plausibility and hence confirm that it results in the desired effects in the theorized condition space but that the breaks in plausibility did not affect presence. In addition, we show that a cognitive manipulation by a storyline framing is too weak to successfully counteract the strong bottom-up inconsistencies. Both results are in line with the predictions of the recently introduced three-layer model of coherence and plausibility, which incorporates well-known top-down and bottom-up rivalries and its theorized increased independence between plausibility and presence.