Article
Neurosciences
Hailey Tabbert, Ushani Ambalavanar, Bernadette Murphy
Summary: Upper limb control relies on accurate internal models, sensory inputs, and cortical processing. This study found that neck muscle vibration could negatively affect upper limb proprioception, leading to decreased joint position sense. These findings are important for understanding body perception and motor control mechanisms.
Article
Neurosciences
Brice Picot, Jeanne Dury, Guillaume Neron, Pierre Samozino, Romain Terrier, Olivier Remy-Neris, Nicolas Forestier
Summary: This study developed a simple method to assess the efficacy and reliability of ankle proprioceptive reintegration following muscle vibration using 2D video analysis of earlobe displacement. The results showed strong positive correlations between the video and force plate data, with excellent intra- and interrater reliability. This simple method could be a valuable tool for clinicians to evaluate postural recovery and central nervous system function in individuals with proprioceptive impairments.
Article
Physiology
George Grose, Damian M. Manzone, Gregg Eschelmuller, Ryan M. Peters, Mark G. Carpenter, J. Timothy Inglis, Romeo Chua
Summary: This study investigated the impairment of position sense associated with muscle fatigue. The results showed that muscle fatigue led to larger errors in judging the target position when opening the hand, and vibration exacerbated this error. The study also found that muscle fatigue did not influence the persistence of the vibratory illusion. These findings suggest that the central nervous system continues to rely on muscle spindles for limb position sense, even when the muscle is fatigued.
JOURNAL OF APPLIED PHYSIOLOGY
(2022)
Article
Neurosciences
Maria Alekhina, Goran Perkic, Gerome Aleandro Manson, Jean Blouin, Luc Tremblay
Summary: Neck proprioceptive information is crucial for goal-directed actions. This study found that it has different impacts on the planning and online control of upper-limb trajectories, with significant individual differences.
Article
Neurosciences
Dardo Tomasi, Nora D. Volkow
Summary: This study investigated the impact of head motion on functional connectivity using publicly available fMRI data. The results showed that small and absolute head motion had a stronger predictive effect on connectivity. Denoising reduced the predictability of motion. The cerebellum and default-mode network were consistently affected by head motion.
FRONTIERS IN NEUROSCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Edyta Kinel, Moreno D'Amico, Piero Roncoletta
Summary: This study aimed to investigate posture perception and self-correction ability in AIS patients who had not received specific postural education treatment, and compare them with healthy young adults. The results showed gender differences in AIS patients in terms of globally modifying posture and 3D spine shape. When adjustments occurred, subjects could only focus on specific aspects rather than globally.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Biophysics
Hyun-Sung Kim, Young-Jun Shin, Seong-Gil Kim
Summary: This study used JPET to analyze the difference in proprioception between standing and sitting postures in the neck. The results showed a significant difference in repositioning errors during neck extension between sitting and standing postures, but no significant difference during neck flexion and lateral flexion.
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY
(2021)
Article
Engineering, Industrial
Mojtaba Mirakhorlo, Nick Kluft, Barys Shyrokau, Riender Happee
Summary: Vibration transmission is crucial in the design of comfortable vehicle seats, but there is limited knowledge about 3D trunk and head motion and the role of seat back and posture. This study developed an experimental methodology to evaluate 3D vibration transmission from compliant seats to the human body. It was found that seat back support height and sitting posture significantly affected vibration transmission and low frequency responses, with lower support height proving beneficial in reducing head motion.
INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS
(2022)
Article
Neurosciences
Jana Kimijanova, Diana Bzduskova, Zuzana Hirjakova, Frantisek Hlavacka
Summary: This study compared the ability of young and older participants to generate anticipatory postural adjustments (APAs) in response to proprioceptive perturbation before gait initiation. Results showed that young adults actively adjusted their postural responses to altered proprioception from lower leg muscles, while older adults were unable to adapt.
FRONTIERS IN HUMAN NEUROSCIENCE
(2021)
Article
Engineering, Industrial
Yi-Lang Chen, You-Chun Chan
Summary: This study examined the effects of smartphone usage on muscle activity, neck flexion, gaze angle, etc., and found that head angle and posture almost affected all responses, with women having lower neck flexion but higher muscle activity in the standing position.
Article
Clinical Neurology
Mahmut Sevim, Numan Demir, Aynur Ayse Karaduman, Selen Serel-Arslan
Summary: The study aimed to examine the relationship between dysphagia severity and head and neck proprioception in patients with neurological diseases. Results showed a moderate, positive correlation between dysphagia severity and neck proprioception, suggesting that decreased head and neck proprioception may be related to severe dysphagia. The findings highlight the importance of considering head and neck proprioception in dysphagia management.
NEUROLOGICAL SCIENCES
(2022)
Review
Health Care Sciences & Services
Seoyon Yang, Mathieu Boudier-Reveret, You Gyoung Yi, Kee Yong Hong, Min Cheol Chang
Summary: The study investigated the effectiveness of treatment programs in managing neck pain in patients with forward head posture (FHP). The results showed that various treatment programs, including postural corrective exercises and manual therapy, were beneficial for improving pain and disability in patients with FHP.
Article
Physiology
Charles Verdonk, Marion Trousselard, Takfarinas Medani, Francois Vialatte, Gerard Dreyfus
Summary: Researchers found that postural signals during closed-eye condition were better at predicting participants' mindfulness scores and accurately classifying their levels of mindfulness. This provides the first physiological evidence supporting the hypothesis of enhanced body awareness in mindfulness.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Engineering, Industrial
Faeze Sarraf, Sakineh Varmazyar
Summary: The posture of using a smartphone affects the amount of pressure on the neck. This study aims to investigate the effect of different positions of using smartphone on head and neck angles among Iranian university students. The angles during using smartphone had a significant difference in different positions.
Article
Chemistry, Analytical
Philipp M. Schmid, Christoph M. Bauer, Markus J. Ernst, Bettina Sommer, Lars Lunenburger, Martin Weisenhorn
Summary: This study introduces a simple biomechanical model for describing head posture and movement relative to the thorax, which achieves high accuracy in identifying and monitoring incorrect head positions. The model's accuracy relies on prior knowledge of the effective neck length, and incorrectly assuming this parameter to be a linear function of palpable neck length can increase measurement error. Despite this, the resulting accuracy is sufficient for detecting and monitoring protracted malpositions of the head relative to the thorax.
Review
Neurosciences
Sook-Lei Liew, Artemis Zavaliangos-Petropulu, Neda Jahanshad, Catherine E. Lang, Kathryn S. Hayward, Keith R. Lohse, Julia M. Juliano, Francesca Assogna, Lee A. Baugh, Anup K. Bhattacharya, Bavrina Bigjahan, Michael R. Borich, Lara A. Boyd, Amy Brodtmann, Cathrin M. Buetefisch, Winston D. Byblow, Jessica M. Cassidy, Adriana B. Conforto, R. Cameron Craddock, Michael A. Dimyan, Adrienne N. Dula, Elsa Ermer, Mark R. Etherton, Kelene A. Fercho, Chris M. Gregory, Shahram Hadidchi, Jess A. Holguin, Darryl H. Hwang, Simon Jung, Steven A. Kautz, Mohamed Salah Khlif, Nima Khoshab, Bokkyu Kim, Hosung Kim, Amy Kuceyeski, Martin Lotze, Bradley J. MacIntosh, John L. Margetis, Feroze B. Mohamed, Fabrizio Piras, Ander Ramos-Murguialday, Genevieve Richard, Pamela Roberts, Andrew D. Robertson, Jane M. Rondina, Natalia S. Rost, Nerses Sanossian, Nicolas Schweighofer, Na Jin Seo, Mark S. Shiroishi, Surjo R. Soekadar, Gianfranco Spalletta, Cathy M. Stinear, Anisha Suri, Wai Kwong W. Tang, Gregory T. Thielman, Daniela Vecchio, Arno Villringer, Nick S. Ward, Emilio Werden, Lars T. Westlye, Carolee Winstein, George F. Wittenberg, Kristin A. Wong, Chunshui Yu, Steven C. Cramer, Paul M. Thompson
Summary: The ENIGMA Stroke Recovery working group aims to understand the relationship between brain and behavior using meta- and mega-analytic approaches. They have developed neuroinformatics protocols and methods to manage large-scale data from over 2,100 stroke patients. The challenges and recommendations for data harmonization in stroke research are discussed.
HUMAN BRAIN MAPPING
(2022)
Article
Clinical Neurology
Toni Muffel, Pei-Cheng Shih, Benjamin Kalloch, Vadim Nikulin, Arno Villringer, Bernhard Sehm
Summary: tDCS has profound effects on sensorimotor functions in chronic stroke patients, with more pronounced and favorable effects observed with bilateral-dual (bi-tDCS) compared to unilateral-anodal (ua-tDCS). However, no uniformly beneficial pattern was identified.
Article
Neurosciences
Natalie Kohler, Giacomo Novembre, Katarzyna Gugnowska, Peter E. Keller, Arno Villringer, Daniela Sammler
Summary: Joint music performance requires flexible sensorimotor coordination between self and other, influenced by shared knowledge and temporal synchrony. A study found that pianists who practiced their partner's part showed stronger activity and connectivity within cortico-cerebellar audio-motor networks, indicating internal model simulation and anticipation of partner's feedback. However, when there were subtle asynchronies between model-based anticipations and perceived sensory outcomes of partner actions, pianists exhibited stronger cerebellar activity and reduced behavioral adaptation, indicating a shift towards self-other segregation.
Article
Biochemical Research Methods
Alina A. Studenova, Arno Villringer, Vadim V. Nikulin
Summary: Ongoing oscillations and evoked responses in neuronal activity may be closely related, with non-zero mean neuronal oscillations potentially contributing to the generation of evoked responses. This mechanism was validated using computational modeling and analysis of EEG data. Empirical EEG recordings also supported the presence of non-zero mean oscillations. These findings have important implications for inferring changes in evoked responses related to cognitive conditions, age, or neuropathologies.
PLOS COMPUTATIONAL BIOLOGY
(2022)
Article
Neurosciences
Ahmed A. Khalil, Ayse C. Tanritanir, Ulrike Grittner, Evgeniya Kirilina, Arno Villringer, Jochen B. Fiebach, Ralf Mekle
Summary: In this study, the reproducibility of BOLD delay was assessed in 136 subjects with normal cerebral perfusion. The highest reproducibility was observed in the posterior cerebral artery territory. Overall, BOLD delay showed good reproducibility, but caution should be exercised when interpreting longitudinal BOLD delay changes that are either very small or located in certain brain regions.
HUMAN BRAIN MAPPING
(2023)
Article
Multidisciplinary Sciences
H. Lina Schaare, Maria Bloechl, Deniz Kumral, Marie Uhlig, Lorenz Lemcke, Sofie L. Valk, Arno Villringer
Summary: The study demonstrates an association between blood pressure and depressive symptoms, well-being, and emotion-related brain activity, which may be relevant to hypertension. Using extensive data from the UK Biobank, the study resolves contradictions and explores the relationship between mental health, systolic blood pressure, and hypertension. It shows that higher systolic blood pressure is associated with fewer depressive symptoms, greater well-being, and lower emotion-related brain activity.
NATURE COMMUNICATIONS
(2023)
Article
Psychiatry
Dirk Alexander Wittekind, Juergen Kratzsch, Roland Mergl, Kerstin Wirkner, Ronny Baber, Christian Sander, A. Veronica Witte, Arno Villringer, Michael Kluge
Summary: The study found that childhood trauma has long-term effects on the ghrelin system, with childhood sexual abuse being significantly associated with higher ghrelin serum levels. However, other childhood traumas did not show a significant association with ghrelin levels.
TRANSLATIONAL PSYCHIATRY
(2023)
Article
Endocrinology & Metabolism
Haiko Schloegl, Arno Villringer, Konstanze Miehle, Mathias Fasshauer, Michael Stumvoll, Karsten Mueller
Summary: This study replicated previous findings on the increase of brain connectivity in the hypothalamus and posterior cingulate gyrus in patients with lipodystrophy (LD) undergoing metreleptin treatment. These results contribute to understanding the central nervous effects of leptin and provide a foundation for future research.
JOURNAL OF THE ENDOCRINE SOCIETY
(2023)
Article
Endocrinology & Metabolism
Haiko Schloegl, Lieneke Janssen, Mathias Fasshauer, Konstanze Miehle, Arno Villringer, Michael Stumvoll, Karsten Mueller
Summary: Using functional MRI, the study investigated the effects of metreleptin on the reward system in a non-eating behavior reward task. The results showed that patients with lipodystrophy treated with metreleptin experienced a decrease in reward-related brain activity, suggesting that leptin has functions in the human reward system that are unrelated to eating behavior.
JOURNAL OF THE ENDOCRINE SOCIETY
(2023)
Article
Clinical Neurology
Karsten Mueller, Friederike Thiel, Birol Taskin, Frank Beutner, Andrej Teren, Vladimir K. Dubovoy, Harald E. Moeller, Arno Villringer, Matthias L. Schroeter
Summary: The study aimed to detect the functional correlates of heart failure in terms of alterations in functional brain connectivity related to cognitive performance. The results show that heart failure is associated with reduced functional connectivity between the precuneus and widely distributed brain regions, and decline in cognitive performance is specifically correlated with diminished functional brain connectivity in patients with heart failure.
BRAIN COMMUNICATIONS
(2023)
Article
Gastroenterology & Hepatology
Evelyn Medawar, Frauke Beyer, Ronja Thieleking, Sven-Bastiaan Haange, Ulrike Rolle-Kampczyk, Madlen Reinicke, Rima Chakaroun, Martin von Bergen, Michael Stumvoll, Arno Villringer, A. Veronica Witte
Summary: This study investigated the effects of high-dosed prebiotic fiber on reward-related food decision-making in overweight young adults. The results showed that prebiotic intake decreased brain activation towards high-caloric food stimuli and caused shifts in gut microbiota.
Article
Neurosciences
Julia Huck, Anna-Thekla Jaeger, Uta Schneider, Sophia Grahl, Audrey P. Fan, Christine Tardif, Arno Villringer, Pierre-Louis Bazin, Christopher J. Steele, Claudine J. Gauthier
Summary: Resting-state functional magnetic resonance imaging (rs-fMRI) is used to detect low-frequency fluctuations in the BOLD signal across brain regions. Venous biases can affect the amplitude and location of the BOLD signal, as well as connectivity measures derived from rs-fMRI. This study investigated the impact of vein diameter and distance on various rs-fMRI measures in the grey matter. It was found that smaller veins had higher values across all distances, while values associated with larger veins decreased with increasing distance. Models were proposed to correct for this venous bias in rs-fMRI metrics.
HUMAN BRAIN MAPPING
(2023)
Article
Psychology, Biological
Felix Klotzsche, Michael Gaebler, Arno Villringer, Werner Sommer, Vadim Nikulin, Sven Ohl
Summary: Virtual reality (VR) is a powerful tool for studying cognitive processes, allowing researchers to observe behaviors and mental states in complex and controlled scenarios. This study used a VR headset to investigate the spatial limitations of two well-known EEG markers in visual short-term memory. The results showed that the amplitude of the contralateral delay activity (CDA) differed between high and low memory load at smaller eccentricities, but not at the largest eccentricity. Memory load and eccentricity had no significant effect on lateralized alpha power. The study concluded that commercial VR hardware can be used to study these EEG markers of visual memory, with some limitations.
Article
Multidisciplinary Sciences
Daniel S. Kluger, Carina Forster, Omid Abbasi, Nikos Chalas, Arno Villringer, Joachim Gross
Summary: Bodily rhythms such as respiration modulate neural oscillations underlying human action, perception, and cognition. The link between respiration and aperiodic brain activity has been unstudied, but this study shows that fluctuations of aperiodic brain activity are synchronized with the respiratory cycle. These findings highlight the role of respiration as a physiological influence on brain signaling.
NATURE COMMUNICATIONS
(2023)
Article
Food Science & Technology
Evelyn Medawar, Marie Zedler, Larissa de Biasi, Arno Villringer, A. Veronica Witte
Summary: Adopting plant-based diets high in fiber may reduce global warming and obesity prevalence, but the physiological and psychological determinants of plant-based food intake remain unclear.
NPJ SCIENCE OF FOOD
(2023)
