Rhythm Research Articles

Research on the mechanism of the effect of music rhythm synchronization training on biomechanics gait optimization and rehabilitation outcome

The integration of movements or activities that match the beat of music is known as music rhythm synchronization (MRS). Excessive musical tempo can enhance motor abilities and general movement efficiency and it requires synchronizing physical activities like walking or exercising. Enhancing the speed of movement that leads to quick walking, longer step length symmetric, and functional walking ability. The training with MRS mechanism, this research aims to analyze the movement in biomechanics, optimization, and the findings of rehabilitation impacts. This research utilizes 75 participants with Parkinson’s illness and they are divided into two categories group A with training in MRS mechanism and received traditional mechanism training in group B. This research explores the training in MRS mechanism-affected biomechanics movements are performed by utilizing the pre-post method by providing more evaluations. The three-week supervised rehabilitation program presenting the MRS has been followed by the two-week follow-up stage as a part of the intervention. There are two significant deviation estimations in the patterns of normal gait like the gait variable score (GVS) and gait profile score (GPS). The regression analysis, Analysis of Variance (ANOVA), regression analysis, and paired sample t-test, which are the data assessment techniques are evaluated by utilizing the SPSS statistical software for the performance. The conclusion demonstrates the MRS mechanism training significantly improved gait biomechanics. The GPS score shows the enhanced overall quality of gait and it decreased significantly. These findings illustrate the potential of the MRS mechanism training mechanism in improving gait biomechanics and producing excellent rehabilitation outcomes.

Hearing Rhythm, Seeing Rhythm: A Research Approach to Reimagining Traditions of Chinese Poetic ‘rules of rhythm’

Throughout the history of China, from early dynasties into contemporary times, aspects of poetry, painting, and writing have been grounded in varied but deeply connected ‘rules of rhythm’. These ‘rules’ permeate in diverse yet identifiable and recognizable forms. The research in this project is aimed at both adopting and adapting these rules of rhythm or rhythmic patterns in an experimental form that reimagines a tradition of ‘lyric aesthetics’ in the context of the contemporary interplay between sound, image, and writing. In this sense, the investigation is at once one of ‘reclamation’ and extension. The basic ‘question’ in these experiments is whether it is possible to represent sonic patterns themselves — that is, by both visualizing sound structures and ‘sonifying’ visual forms (irrespective of textual content). The text focuses on the historical establishment of methodological approaches (as a way to identify their forms) and then transforming/translating these in combinations made possible by blending the sonic and visual. As a particular attribute of Chinese expression, these ‘rules’ or forms are cultural traits that have endured through many centuries and challenges and, more importantly in this case, can be (re)iterated in dynamic, fluid, and revitalized contemporary artistic configurations that aim at seeing sound, writing sound, and performing rhythm. <style> /* rules to make button only show up in META */ .download-accessible { display:none; } .meta-right-col .download-accessible { display: inline-block; padding: 9px; margin-bottom:25px; border: 1px solid black; background-color:white; } </style> <a class="download-accessible" href="download-media?work=3155507&file=3155517" title="This accessible PDF is a derivative of the original which it is meant to support and not replace.">Download Accessible PDF</a>

The genetically programmed rhythmic alteration of diurnal gene expression in the aged Arabidopsis leaves

The circadian clock regulates the daily pattern of temporal gene expression. In Arabidopsis, aging is associated with a shortening of the endogenous period of circadian rhythms under circadian conditions. However, the functional link between the circadian clock and aging under diurnal conditions and its physiological relevance remain elusive. In this study, we investigate and characterize the effect of aging on the waveforms of rhythmic gene expression patterns under light/dark cycles. Our analysis revealed that the diurnal rhythmic patterns of core clock genes undergo significant rhythmic alteration with phase shift and change of waveforms in aged plants compared to younger plants. Transcriptomic analysis indicated that this age-dependent rhythmic alteration occurs not only in core clock genes but also globally. Due to the rhythmic alteration patterns of the diurnal rhythmic gene expression, aged plants experience subjectively a shorter day and longer night. We also observed that genetic mutants of core clock component genes exhibited broadly yet distinctively altered changes in diurnal rhythmic gene expression patterns as aging progresses. Collectively, our findings support that age-dependent rhythmic alteration of diurnal gene expression rhythms reprograms the timetable of daily gene expression, leading to the physiological changes required for plant senescence.

Cooling lactating sows exposed to early summer heat wave alters circadian patterns of behavior and rhythms of respiration, rectal temperature, and saliva melatonin.

Heat stress (HS) exerts detrimental effects on animal production, with lactating sows being particularly vulnerable. Understanding the mechanisms involved in HS response could aid in developing effective strategies against the negative impacts on livestock. Recent genome wide association studies identified two core circadian clock genes as potential candidates in mediating HS response. The study aimed to investigate how cooling lactating sows under natural heat stress conditions impacted circadian patterns of respiration rate (RR), rectal temperature (RT), behavior, salivary melatonin and cortisol levels, and diurnal patterns of cytokines in saliva. Mixed parity lactating sows were assigned to one of two treatment groups: electronic cooling pad (C; n = 9) and heat-stressed (H; n = 9). The experiment spanned two 48 h periods of elevated ambient temperatures due to summer heat wave. In the first 48 h period, RR was recorded every 30 min, RT every 60 min, and behaviors (eating, standing, sitting, laying, sleeping, drinking, and nursing) every 5 min. In the second 48 h period, saliva samples were collected every 4 h. Cooling reduced RR and RT and altered circadian patterns (P < 0.05). Cooling did not affect amount of time engaged in any behavior over the 48 h period (P > 0.05), however, daily patterns of eating, standing and laying differed between the treatments (P < 0.05), with altered eating behavior related to RT increment in H sows (P < 0.05). Cooling increased and altered the circadian pattern of salivary melatonin (P < 0.05). Cooling also influenced the diurnal pattern of saliva cytokines. Cooling had no impact on saliva cortisol levels. In conclusion, cooling HS sows impacted circadian rhythms of physiology and behavior, supporting the need for further research to understand if circadian disruption underlies decreased production efficiency of HS animals.

THE STUDY OF THE SPATIO-TEMPORAL ORIENTATION ABILITY OF STUDENTS PRACTICING SPORTS DANCE AT THE UNIVERSITY OF BUCHAREST

Background. Sports dance is characterized by a complex coordination, its most important components being, in our opinion: the segmental, general and multisegmental coordination; the capacity of kinesthetic differentiation; the static and dynamic coordination, the ability of spatio-temporal orientation; the ability to perceive and reproduce musical rhythm and tempo. Sports dance lessons are held in the University of Bucharest with students who opt for this discipline without having a prior selection. In sports dance, all the motor capacities are involved in different weights, but we proposed for this study to analyze from the perspective of the coordinative capacities, the spatio-temporal orientation. Objectives. The subjects in this study are students in the 1st and 2nd years, belonging to different faculties of the university and they were divided into the control and the experimental groups. Both groups worked to test a salsa choreography during the lessons. In the experimental group, the choreography was practiced facing points 1,3,5,7, and in the control group, the choreography was practiced facing point 1. The test was realized with reference to point 5. Methods. The working methods used are observation, testing method, statistical-mathematical and graphical interpretation method. Results. The results were significantly better in the experimental group compared to the control group. The subjects in the experimental group were able to orient themselves better in space and time in a percentage of 85% and in the control group the percentage was about 30% Conclusion. We believe that the orientation in space and time can be improved by simple means, prepared by the teacher in the sports discipline, the methodological work being implemented according to the groups.

From Sound to Movement: Mapping the Neural Mechanisms of Auditory–Motor Entrainment and Synchronization

Background: Humans exhibit a remarkable ability to synchronize their actions with external auditory stimuli through a process called auditory–motor or rhythmic entrainment. Positive effects of rhythmic entrainment have been demonstrated in adults with neurological movement disorders, yet the neural substrates supporting the transformation of auditory input into timed rhythmic motor outputs are not fully understood. We aimed to systematically map and synthesize the research on the neural correlates of auditory–motor entrainment and synchronization. Methods: Following the PRISMA-ScR guidelines for scoping reviews, a systematic search was conducted across four databases (MEDLINE, Embase, PsycInfo, and Scopus) for articles published between 2013 and 2023. Results: From an initial return of 1430 records, 22 studies met the inclusion criteria and were synthesized based on the neuroimaging modality. There is converging evidence that auditory–motor synchronization engages bilateral cortical and subcortical networks, including the supplementary motor area, premotor cortex, ventrolateral prefrontal cortex, basal ganglia, and cerebellum. Specifically, the supplementary motor area and the basal ganglia are essential for beat-based timing and internally guided rhythmic movements, while the cerebellum plays an important role in tracking and processing complex rhythmic patterns and synchronizing to the external beat. Self-paced tapping is associated with additional activations in the prefrontal cortex and the basal ganglia, suggesting that tapping in the absence of auditory cues requires more neural resources. Lastly, existing studies indicate that movement rate and the type of music further modulate the EEG power in the alpha and beta frequency bands. Conclusions: These findings are discussed in the context of clinical implications and rhythm-based therapies.

Optimizing Fractional-Order Convolutional Neural Networks for Groove Classification in Music Using Differential Evolution

This study presents a differential evolution (DE)-based optimization approach for fractional-order convolutional neural networks (FOCNNs) aimed at enhancing the accuracy of groove classification in music. Groove, an essential element in music perception, is typically influenced by rhythmic patterns and acoustic features. While FOCNNs offer a promising method for capturing these subtleties through fractional-order derivatives, they face challenges in efficiently converging to optimal parameters. To address this, DE is applied to optimize the initial weights and biases of FOCNNs, leveraging its robustness and ability to explore a broad solution space. The proposed DE-FOCNN was evaluated on the Janata dataset, which includes pre-rated music tracks. Comparative experiments across various fractional-order values demonstrated that DE-FOCNN achieved superior performance in terms of higher test accuracy and reduced overfitting compared to a standard FOCNN. Specifically, DE-FOCNN showed optimal performance at fractional-order values such as v = 1.4. Further experiments demonstrated that DE-FOCNN achieved higher accuracy and lower variance compared to other popular evolutionary algorithms. This research primarily contributes to the optimization of FOCNNs by introducing a novel DE-based approach for the automated analysis and classification of musical grooves. The DE-FOCNN framework holds promise for addressing other related engineering challenges.

Rhythm-based Temporal Expectations: Unique Contributions of Predictability and Periodicity.

Anticipating events and focusing attention accordingly are crucial for navigating our dynamic environment. Rhythmic patterns of sensory input offer valuable cues for temporal expectations and facilitate perceptual processing. Rhythm-based temporal expectations may rely on oscillatory entrainment, where neural activity and perceptual sensitivity synchronize with periodic stimuli. However, whether entrainment models can account for aperiodic predictable rhythms remains unclear. Our study aimed to delineate the distinct roles of predictability and periodicity in rhythm-based expectations. Participants performed a pitch-identification task preceded by periodic predictable, aperiodic predictable, or aperiodic unpredictable temporal sequences. By manipulating the temporal position of the target sound, we observed how auditory perceptual performance was modulated by the target position's relative phase relationship to the preceding sequences. Results revealed a significant performance advantage for predictable sequences, both periodic and aperiodic, compared with unpredictable ones. However, only the periodic sequence induced an entrained modulation pattern, with performance peaking in synchrony with the inherent sequence continuation. Event-related brain potentials corroborated these findings. The target-evoked P3b, possibly a neural marker of attention allocation, mirrored the behavioral performance patterns. This supports our hypothesis that temporal attention guided by rhythm-based expectations modulates perceptual performance. Furthermore, the predictive sequences were associated with enhanced target-preceding negativity (akin to the contingent negative variation), indicating enhanced target preparation. The periodic-specific modulation likely reflects more precise temporal expectations, potentially involving neural entrainment and/or more focused attention. Our findings suggest that predictability and periodicity influence perception through distinct mechanisms.

PELATIHAN EKSTRAKURIKULER TARI KREASI DALAM MEMBENTUK SIKAP PERCAYA DIRI SISWA OLEH KAMPUS MENGAJAR 7 DI SDN 50 CAKRANEGARA

Abstrct. Extracurricular dance is a very important activity to build students' self-confidence and sense of responsibility at the 50 Cakranegara State Elementary School. With extracurricular activities, they are able to express themselves through dance movements and musical rhythms so that students' self-confidence can develop. The research method used is the PALS approach (Paraticcipatory action learning system). The data collection was obtained based on observations in grades 4 and 5 as well as notes while in the field. The results of the research showed that children in grades 4 and 5 who took part in dance extracurricular activities and received dance instruction appeared to have a confident attitude. This is demonstrated by several factors, including responsibility and self-confidence. Aspect of self-confidence: students who are always confident and self-confident seem to have a firm stance, drive and joy, which can be seen in every action they take. The ability to fulfill obligations and fulfill commitments is a measure of responsibility. With this creative dance extracurricular, it is hoped that it can foster two aspects, namely confidence in one's abilities and responsibility. Key Word. Extracurricular, Confidence, Dance Art

The clock-associated LUX ARRHYTHMO regulates high-affinity nitrate transport in Arabidopsis roots.

The circadian clock organizes physiological processes in plants to occur at specific times of the day, optimizing efficient use of resources. Nitrate is a crucial inorganic nitrogen source for agricultural systems to sustain crop productivity. However, because nitrate fertilization has a negative impact on the environment, it is important to carefully manage nitrate levels. Understanding crop biological rhythms can lead to more ecologically friendly agricultural practices. Gating responses through the circadian clock could be a strategy to enhance root nitrate uptake and to limit nitrate runoff. In Arabidopsis, the NITRATE TRANSPORTER 2.1 (NRT2.1) gene encodes a key component of the high-affinity nitrate transporter system. Our study reveals that NRT2.1 exhibits a rhythmic expression pattern, with daytime increases and nighttime decreases. The NRT2.1 promoter activity remains rhythmic under constant light, indicating a circadian regulation. The clock-associated transcription factor LUX ARRHYTHMO (LUX) binds to the NRT2.1 promoter in vivo. Loss-of-function of LUX leads to increased NRT2.1 transcript levels and root nitrate uptake at dusk. This supports LUX acting as a transcriptional repressor and modulating NRT2.1 expression in a time-dependent manner. Furthermore, applying nitrate at different times of the day results in varying magnitudes of the transcriptional response in nitrate-regulated genes. We also demonstrate that a defect in the high-affinity nitrate transport system feeds back to the central oscillator by modifying the LUX promoter activity. In conclusion, this study uncovers a molecular pathway connecting the root nitrate uptake and circadian clock, with potential agro-chronobiological applications.

EM-Rhythm: An Authentication Method for Heterogeneous IoT Devices

The popularity of IoT devices has penetrated our daily life while posing new challenges in user authentication. Today’s solutions, e.g., passwords, fingerprints, and FaceIDs, primarily rely on specialized sensors or user interfaces to collect user’s identification information, which may not universally exist on heterogeneous IoT devices. In this paper, we propose a novel user authentication method that exploits the EM emanations radiated from IoT devices. Our design is motivated by the observation that human touches on the IoT device can lead to time-varying coupling between these two. Consequently, it impacts the device’s EM emanations that can be picked up by its inertial ADC (analog-to-digital converter) interfaces. We ask the user to tap on the device rhythmically following a self-determined melody, such that the human-coupled EM emanations vary accordingly. We thus extract the rhythm pattern as the user’s secure password named EM-Rhythm . To examine its effectiveness, EM-Rhythm is implemented on a wide range of IoT devices. We show that our scheme achieves authentication accuracy as high as 98.67% with less than three login attempts. Besides, it is robust against various types of attacks and maintains stable performances under various settings. EM-Rhythm also exhibits satisfactory usability in terms of memorability and time consumption.

7170 Plasticity of the Hypothalamic Tuberoinfundibular Dopaminergic Neuronal Network in Lactating Rats

Abstract Disclosure: P. Papaioannou: None. T. Georgescu: None. D.R. Grattan: None. S. Bunn: None. S. Yip: None. The tuberoinfundibular dopaminergic (TIDA) neurons play a crucial role in regulating prolactin secretion. Their synchronized network activity with slow but highly rhythmic firing pattern is important for dopamine release in rats[1]. While this unique TIDA network activity is vital for prolactin negative feedback in non-lactating conditions, its behaviour during lactation, when prolactin demand is high, remains unknown. Our hypothesis posited that the TIDA neuronal network in lactating rats becomes desynchronized, disrupting the negative feedback loop. To test this, we utilized ex-vivo Ca2+ imaging to simultaneously monitor population-wide TIDA neuron activity in non-lactating (NL; n=13) and lactating (L; n=10) rats injected with a cre-inducible adeno-associated virus (AAV) containing the Ca2+ indicator, GCaMP6s, into their arcuate nucleus. Analysis of neuronal network synchronicity revealed significant desynchronization in the TIDA network during lactation, as indicated by a markedly lower mean correlation coefficient matrix (CM) compared to non-lactating conditions (NL: 0.87±0.02, n= 26 sections vs L: 0.22±0.03, n=29 sections; p&amp;lt;0.001, Student’s t-test). Furthermore, the oscillatory activity patterns of these desynchronized TIDA neurons displayed a significantly lower cell rhythmicity index (RI) in lactating animals compared to non-lactating ones (NL: 0.17±0.01, n=186 cells vs L: 0.70±0.02, n=77 cells; p&amp;lt;0.001, Student’s t-test). Interestingly, within these low rhythmic neurons, some exhibited higher while others showed lower firing frequencies compared to non-lactating TIDA neurons. After 7 days post-weaning (n=4 animals), the TIDA network activity returned to non-lactating behaviour (CM = 0.85 ± 0.04, n=6 sections and RI = 0.17±0.01; n=47 cells). In summary, our findings demonstrate a reversible reconfiguration of the TIDA neuronal networks during lactation, characterized by low rhythmic oscillations and individual unique firing patterns, leading to diminished intercellular synchrony that may impede dopamine release, ultimately facilitating prolactin release to support lactation. Once weaned, the TIDA neuronal network reset to NL state to allow a new reproductive cycle. [1] Lyons, D. J., Horjales-Araujo, E. &amp; Broberger, C. Synchronized network oscillations in rat tuberoinfundibular dopamine neurons: switch to tonic discharge by thyrotropin-releasing hormone. Neuron 65, 217-229, doi:10.1016/j.neuron.2009.12.024 (2010). Presentation: 6/2/2024

The Triple Root (Agnosia) in the Holy Quran is a Linguistic Study

This research, titled "The Triliteral Root (ʿAgnosia) in the Holy Quran: This paper aims at offering both linguistic and semantic analysis of the triliteral root “ʿ-Agnosia” in the Quran: A Linguistic Study. Incredibly, the language study of The Holy Quran is an academic interest to date, with the Holy Scripture being an ocean of knowledge. This research resulted from the need to be more precise in understanding some of the suras and certain features of Arabic and the Quran in particular some aspects of the root “ʿ-Agnosia” which is mentioned in some verses of the Quran with different meaning in Arabic. The work is divided into three sections each discussing a facet of the root ‘ʿAgnosia’ In the first place, the morphological and phonological properties of the root ‘ʿ ʿAgnosia’ with reference to the Quran. This is how this root expands the quantitative and qualitative meaning sphere of Quranic Arabic and adds its variety to the language, in general. The second section is therefore concerned with the phonic properties of the root: the place and the manner of articulation of the letters making up the root, and the phonological regularity which may be gleaned from the use of the root. The present analysis proves useful to throw the light on the auditory profile and the rhythm pattern of the root and how it is intoned in quranic recital with harmony and precision. The third section is devoted to the relations of this root with the internal structure of the words and phrases of the Quranic text: analysis of the morphological aspect of “ʿ- ʿAgnosia” In addition, identification and differentiation of number of forms and derivations of the root and correlation with the variables of the verses where it is used to determine the significance of the root in the verses of QURAN. When this analysis is done, not only works of classical and modern linguistics in reference to the root are reviewed and discussed and but also interpretations of the Quran. In the final section of the study, the authors reiterate the findings of investigation also bringing out the major ideas regarding the centrality of the root for enhancing the proclamatory task of the Quran as the Word of God. It is in this light, then, that this study aims at contributing to the existing body of knowledge on Quranic linguistics through a word by word examination of a particular root, the lack of which greatly hinders meaning construction in the Quran. It serves at making the reader to be appreciate on the difficulty in the language of the Quran and that the writers took their time to pen down the Quran. The study concludes by tabulating the basic findings in addition to identifying the sources that have been used in the course of the study. I pray to Allah, the Almighty Allah to shower his blessings to this work and any other further research to be made on the linguistic miracles of the Holy Quran.

Predictors of the development of abnormal patterns of circadian blood pressure rhythm in patients with hypertension after a new coronavirus infection

Objective. To determine the predictors of the development of abnormal patterns of circadian blood pressure (BP) rhythm in patients with arterial hypertension (AH) after a new coronavirus infection (NСVI). Materials and methods. The study is a comparative clinical research of the same patients with hypertension before and after NCVI with retrospective evaluation of the data. Within 2 years from 842 patients with cardiovascular risk factors, according to the inclusion and non-inclusion criteria 70 patients with target levels of office BP, home monitoring and 24-hour blood pressure monitoring (ABPM) on the background of a continuous antihypertensive therapy were included in the study. Abnormal patterns of circadian BP were recorded after NCVI during ABPM in all of them. All patients with hypertension underwent a complete examination before and after NCVI. Results. After NCVI in patients with AH who had achieved the target ranges of office BP before its development, at home measurement and ABPM against the background of continuous antihypertensive therapy with high adherence to treatment, in more than 50 % of patients BP readings were not in the target values, in more than 50 % of the examined patients, BP variability was higher than the permissible values, in 73 % of patients the average daily BP was above 53 mm Hg. Abnormal patterns of circadian BP rhythm in patients with hypertension after NCVI were detected in 61.5 %: "Non-dipper" in 28.6 %; "Night-dipper" – in 21.9 %, masked nocturnal hypertension – in 17.1 %. Conclusion. The indicative significance of the development of abnormal patterns of circadian BP rhythm in patients with hypertension after NCVI was demonstrated by 3 qualitative indicators: glomerular filtration rate with cystatin C 60 ml/min/1.73 m2, cardio-ankle vascular index (CAVI) ≥ 9, and a high frequency of AGT gene polymorphism – T/T genotype (in 54.3 % of patients).

Neural representations of beat and rhythm in motor and association regions.

Humans perceive a pulse, or beat, underlying musical rhythm. Beat strength correlates with activity in the basal ganglia and supplementary motor area, suggesting these regions support beat perception. However, the basal ganglia and supplementary motor area are part of a general rhythm and timing network (regardless of the beat) and may also represent basic rhythmic features (e.g. tempo, number of onsets). To characterize the encoding of beat-related and other basic rhythmic features, we used representational similarity analysis. During functional magnetic resonance imaging, participants heard 12 rhythms-4 strong-beat, 4 weak-beat, and 4 nonbeat. Multi-voxel activity patterns for each rhythm were tested to determine which brain areas were beat-sensitive: those in which activity patterns showed greater dissimilarities between rhythms of different beat strength than between rhythms of similar beat strength. Indeed, putamen and supplementary motor area activity patterns were significantly dissimilar for strong-beat and nonbeat conditions. Next, we tested whether basic rhythmic features or models of beat strength (counterevidence scores) predicted activity patterns. We found again that activity pattern dissimilarity in supplementary motor area and putamen correlated with beat strength models, not basic features. Beat strength models also correlated with activity pattern dissimilarities in the inferior frontal gyrus and inferior parietal lobe, though these regions encoded beat and rhythm simultaneously and were not driven by beat alone.

Utility of CT perfusion in seizures and rhythmic and periodic patterns

ObjectiveCT hyper-perfusion has been reported in non-convulsive status epilepticus (NCSE), while its occurrence and relevance after single seizures or with rhythmic and periodic patterns (RPPs) that lie along the ictal-interictal continuum (IIC), remain unclear. The goal of the study is to assess the role of CT perfusion (CTP) in diagnosing patients with clinical seizures, subclinical seizures, or RPPs that lie along the IIC, to help in the clinical assessment of these entities. MethodsWe retrospectively reviewed inpatients who underwent a CTP and an EEG within 6 h of each other. CTP and EEGs were blindly reviewed independent of electronic medical records. ResultsOut of 103 patients, 15 patients (15 %) demonstrated hyper-perfusion, 40 patients (39 %) had hypo-perfusion, while 48 patients (47 %) had normal CTP. Patients with focal CTP hyperperfusion were more likely to have clinical seizures, electrographic seizures, and/or lateralized rhythmic periodic patterns (RPPs) compared to those without CTP hyperperfusion. Focal CTP hyper-perfusion had 34 % sensitivity and 96 % specificity for identifying patients with clinical seizures, and a 40 % sensitivity and 92 % specificity for identifying patients with electrographic seizures or lateralized RPP. Although the numbers were small, none of the patients with generalized periodic discharges or generalized rhythmic delta activity had CTP hyper-perfusion. ConclusionsFocal CTP hyper-perfusion has low sensitivity but high specificity for identifying patients with seizures and lateralized RPPs, and may be considered in the clinical assessment of patients where the clinical information are unclear or insufficient. SignificanceThe presence of CTP hyper-perfusion should alert the physician to the possibility of an ictal related etiology accounting for the patient’s symptoms.

Unique and Scintillating Dance of Saptha Vidanga Sthalas

The dance, Tandava, or the cosmic dance of Nataraja symbolizes the balance and rhythm of the universe, the rhythm of life, and the perpetual flow of energy in the universe. The Dance with subtle, intricate movements of the cosmos could be interpreted as ‘Micro Dance’. The dance of Saptha vidanga sthalas are graceful movements which are characterized by delicacy, precision, and attentiveness to subtle nuances and rhythms of Nature. Ajapa Natanam of Tyagaraja is a subtle and rhythmic breathing movements which are very minute and imperceptible. Tharanga Natanam of Nãgaikkãronam is a delicate sensitive up and down micro movements of waves in a rhythmic pattern with troughs and crests. Kukuda Natanam of Thirukkãrãyil is a sensitive up and down movement of musical notes and is a dance of distinct rhythm, with sharp notes with gradual intensity and crescendo to lower note. Brunga Natanam of Thirukkolili is the graceful movement of a bee to a hypnotic rhythm with its up and down movement of wings which cannot be measured. Kamala Natanam of Thiruvãymur is a subtle, undulating movement of the lotus by a gentle breeze passes over, reflecting the gentle rhythm of the nature. Hamsapãda Natanam of Vedaranyam is the rhythmic gait of a swan, a distinctive swaying motion embodies a sense of tranquillity and beauty. Unmattha Natanam of Thirunallar is the movement of ecstasy, a movement of intense pleasure and profound spiritual experience and emotions.

Deep Learning Detection of Hand Motion During Microvascular Anastomosis Simulations Performed by Expert Cerebrovascular Neurosurgeons

Deep learning enables precise hand tracking without the need for physical sensors, allowing for unsupervised quantitative evaluation of surgical motion and tasks. We quantitatively assessed the hand motions of experienced cerebrovascular neurosurgeons during simulated microvascular anastomosis using deep learning. We explored the extent to which surgical motion data differed among experts. A deep learning detection system tracked 21 landmarks corresponding to digit joints and the wrist on each hand of 5 expert cerebrovascular neurosurgeons. Tracking data for each surgeon were analyzed over long and short time intervals to examine gross movements and micromovements, respectively. Quantitative algorithms assessed the economy and flow of motion by calculating mean movement distances from the baseline median landmark coordinates and median times between sutures, respectively. Tracking data correlated with specific surgical actions observed in microanastomosis video analysis. Economy of motion during suturing was calculated as 19, 26, 29, 27, and 28 pixels for surgeons 1, 2, 3, 4, and 5, respectively. Flow of motion during microanastomosis was 31.96, 29.40, 28.90, 7.37, and 47.21seconds for surgeons 1, 2, 3, 4, and 5, respectively. Hand tracking data showed similarities among experts, with low movements from baseline, minimal excess motion, and rhythmic suturing patterns. The data revealed unique patterns related to each expert's habits and techniques. The results showed that surgical motion can be correlated with hand motion and assessed using mathematical algorithms. We also demonstrated the feasibility and potential of deep learning-based motion detection to enhance surgical training.

Dynamic entrainment: A deep learning and data-driven process approach for synchronization in the Hodgkin-Huxley model.

Resonance and synchronized rhythm are significant phenomena observed in dynamical systems in nature, particularly in biological contexts. These phenomena can either enhance or disrupt system functioning. Numerous examples illustrate the necessity for organs within the human body to maintain their rhythmic patterns for proper operation. For instance, in the brain, synchronized or desynchronized electrical activities can contribute to neurodegenerative conditions like Huntington's disease. In this paper, we utilize the well-established Hodgkin-Huxley (HH) model, which describes the propagation of action potentials in neurons through conductance-based mechanisms. Employing a "data-driven" approach alongside the outputs of the HH model, we introduce an innovative technique termed "dynamic entrainment." This technique leverages deep learning methodologies to dynamically sustain the system within its entrainment regime. Our findings show that the results of the dynamic entrainment technique match with the outputs of the mechanistic (HH) model.

Developing Students’ Readiness for Musical Improvisation in the Context of Selected Assumptions of Edwin E. Gordon’s Music Learning Theory

The article is an attempt to highlight selected assumptions of Edwin E. Gordon’s music learning theory in the context of developing readiness for music improvisation at school and outside school. Improvisation is, in this case, understood as one of the instruments of interpersonal communication, which can be developed through musical dialogue using tonal and rhythm patterns. The article is also a subjective presentation of the values inherent in the theory of music learning in the context of developing the above-mentioned readiness for music improvisation in students of different ages. Developing readiness for musical improvisation involves assimilating tonal and rhythm patterns into the students’ musical vocabulary so that they can participate in musical dialogue with others. This happens thanks to students’ active experience of music in an individual and social context. In developing readiness for musical improvisation, the student begins by actively listening, repeating and assimilating musical motifs, which, in music, are the starting point for complex mental operations related to musical audiation, which, to a musician, is what thinking is to language. The effect of applying the concept of improvisation suggested in the theory of music learning will be to increase the creative, expressive and improvisational activity of students in the process of music education and to develop the tonal, rhythm and melodic vocabulary necessary to independently undertake creative and improvisational activity with full awareness, taking into account the processes of musical audiation.