The Posturography, the recording of the postural balance in standing position, allows the assessment of the vestibulospinal function, through the shifts of the pressure center. In this paper are expressed the results gained with this static posturographic protocol followed at our Department, using a dynamometric platform DINASCAN (Institute of Biomechanics, Valencia, IBv) in 63 normal people. Four parameters (i.e. maximal extent of antero-posterior displacement: lateral wards; full length of the shifting; and the surfaced limited for the changes of the pressure center) in 6 several body positions (Romberg with open and closed eyes; closed eyes and overextended head; closed eyes and right and left cervical turn and standing on only one foot with open eyes) were evaluated. The outcome of the proofs become gradually worsened in accordance with the difficulties of the tests, although there were no differences when considering the results of the proofs with turning or hyperextending the head. Diagnostic possibilities trying dynamometric platforms are considered.
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Psychon Bull Rev
January 2025
Centre de Recherche en Psychologie et Neuroscience, CNRS & Aix-Marseille University, Marseille, France.
A recent study (Wen et al., Journal of Experimental Psychology: Human Perception and Performance, 50: 934-941, 2024) found no influence of relative word-length on transposed-word effects. However, following the tradition of prior research on effects of transposed words during sentence reading, the transposed words in that study were adjacent words (words at positions 2 and 3 or 3 and 4 in five-word sequences).
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January 2025
Center for Research of the Aging Workforce, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.
Improving physical balance among older workers is essential for preventing falls in workplace. We aimed to elucidate the age-related decline in one-leg standing time with eyes closed, an indicator of static balance, and mitigating influence of daily walking habits on this decline in Japan. This longitudinal study involved 249 manufacturing workers, including seven females, aged 20-66 years engaged in tasks performed at height in the aircraft and spacecraft machinery industry.
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January 2025
Department of Life Sciences, The University of Tokyo, Tokyo, Japan.
Many theories of time perception propose the existence of an internal pacemaker, and studies across behavioral, physiological, and neuroscience fields have explored this concept. Specifically, Spontaneous Motor Tempo (SMT), the most comfortable and natural tapping tempo for each individual, is thought to reflect this internal pacemaker's tempo. Changes in heart rate are also linked to time estimation, while Individual Alpha Frequency (IAF), the peak in the alpha range (8-13 Hz) observed in EEG, is reported to reflect the brain's temporal processing.
View Article and Find Full Text PDFGravity has long been purported to serve a unique role in sensorimotor coordination, but the specific mechanisms underlying gravity-based visuomotor realignment remain elusive. In this study, astronauts (9 males, 2 females) performed targeted hand movements with eyes open or closed, both on the ground and in weightlessness. Measurements revealed systematic drift in hand-path orientation seen only when eyes were closed and only in very specific conditions with respect to gravity.
View Article and Find Full Text PDFBrain Res Bull
January 2025
Department of Health, Graduate School, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 31116, Republic of Korea. Electronic address:
Introduction: The thalamus regulates various sensory information to each related brain area. The vestibular nucleus transmits information of motor control to the thalamus regulating coordination function. The vestibulothalamic tract (VTT) is a neural pathway between the vestibular nucleus and thalamus that processes vestibular information for postural balance and spatial perception.
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