Background: Movement simulation helps increasing the chances to reach goals. A cognitive task used to study the neuro-behavioral aspects of movement simulation is mental rotation: people mentally re-orient rotated pictures of hands. However, the involvement of the primary motor cortex (M1) in mental rotation is largely controversial.
Hypothesis: Such inconsistency could arise from potential methodological flaws in experimental procedures and data analysis. In particular, until now, the timing of M1 activity has been computed in absolute terms: from the onset of mental rotation (onset-locked), neglecting intra- and inter-subject variability.
Methods: A novel phase-locked approach is introduced to synchronize the same phases of cognitive processing among different subjects and sessions. This approach was validated in the particular case of corticospinal excitability of the motor cortex during mental rotation.
Results: We identified the relative time-windows during which the excitability of M1 is effector-specifically modulated by different features of mental rotation. These time windows correspond to the 55%-85% of the subjective timing.
Conclusions: In sum, (i) we introduce a new method to study the neurophysiology of motor cognition, and (ii) validating this method, we shed new light on the involvement of M1 in movement simulation.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.brs.2017.09.014 | DOI Listing |
Chronobiol Int
January 2025
Research Center for Overwork-Related Disorders, National Institute of Occupational Safety and Health, Kawasaki, Japan.
In modern society, many workers struggle with sleep deprivation due to their work schedules and excessive workloads. Accurate self-awareness and self-monitoring abilities are crucial for workers to adopt risk-coping strategies and protective behaviors when fatigued. The current study examined the relationship between chronotypes and self-monitoring performance during 24 h of sleep deprivation.
View Article and Find Full Text PDFPsychon Bull Rev
January 2025
Department of Education and Psychology, The Open University, 1 University Road, P.O. Box 808, 4353701, Ra'anana, Israel.
Visual perspective taking often involves transitioning between perspectives, yet the cognitive mechanisms underlying this process remain unclear. The current study draws on insights from task- and language-switching research to address this gap. In Experiment 1, 79 participants judged the perspective of an avatar positioned in various locations, observing either the rectangular or the square side of a rectangular cube hanging from the ceiling.
View Article and Find Full Text PDFActas Esp Psiquiatr
January 2025
Psychiatry Department, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain; Research Group on Psychiatry and Neurodegenerative Diseases, INCLIVA-Instituto de Investigación Sanitaria, 28009 Valencia, Spain; CIBERSAM-Centro de Investigación Biomédica en Red de Salud Mental, 28029 Madrid, Spain; Medicine Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain.
Background: Efforts to improve psychiatry training must incorporate residents' assessment of their training. This study sought to collect the opinion of residents about the program that has been in force in Spain since 2008, until the current transition to a new plan.
Methods: The authors conducted an online survey of psychiatry residents in Spain, asking about their formative and working conditions.
J Craniofac Surg
January 2025
Department of Plastic and Reconstructive Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Shijingshan, Beijing, P.R. China.
Objective: Cervical burn scar contractures can be repaired using many modalities, including skin grafts, pedicled and free flaps. Although preexpanded cervical flaps can provide a like-with-like reconstruction, a simple advancement transfer of the flaps often fails to achieve ideal outcomes. The authors aimed to introduce a method using the preexpanded cervical flaps transferred in a scarf-wrapping manner to repair neck defects.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Breast Surgery, Mindong Hospital Affiliated to Fujian Medical University, No. 89, Heshan Road, Fu'an, 355000, Fujian Province, China.
Granulomatous mastitis (GM) poses challenges in diagnosis and treatment due to its similarities with other breast diseases like cancer. The comparative study evaluated the efficacy and safety of a vacuum-assisted biopsy device with minimally invasive excisions compared to traditional wide local excisions. The vacuum-assisted biopsy device technique offers benefits such as precise tissue removal, reduced damage to healthy tissue, shorter surgery and recovery times, and lower postoperative complication risks.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!