Article
Neurosciences
Roozbeh Behroozmand, Leonardo Bonilha, Chris Rorden, Gregory Hickok, Julius Fridriksson
Summary: We used left-hemisphere stroke as a model to examine the impairment of vocal auditory feedback processing and control in sensorimotor brain networks. The findings showed that individuals with aphasia exhibited aberrant modulation of ERP activity during vocalization, accompanied by reduced compensatory vocal responses to pitch-shift alterations in the auditory feedback. Lesion-mapping revealed that the abnormal pattern of ERP modulation was accounted for by damage to sensorimotor networks within specific areas of the left-hemisphere cortex. These results provide translational synergy for theoretical models of sensorimotor integration and have clinical applications for communication disabilities in stroke and other neurological conditions.
Article
Multidisciplinary Sciences
Yongmin Shin, Jaeseo Lim, Yonggwan Kim, Deog-Gyu Seo, Jungjoon Ihm
Summary: Visual representation of one's body shape facilitates motor learning, improving the rate of learning.
SCIENTIFIC REPORTS
(2022)
Review
Neurosciences
Kathleen E. Cullen, Rui-Han Wei
Summary: The mammalian vestibular efferent system remains a mystery, as it does not relay inputs from other sensory modalities or motor-related signals to the vestibular periphery, but likely plays a key role in calibrating and protecting vestibular circuits during development and aging.
FRONTIERS IN NEUROSCIENCE
(2021)
Article
Neurosciences
Tjerk T. Dercksen, Andreas Widmann, Toemme Noesselt, Nicole Wetzel
Summary: This study recorded action-induced somatosensory omission responses using EEG in humans and found that these responses may reflect prediction errors at multiple levels in the brain.
HUMAN BRAIN MAPPING
(2023)
Article
Psychology, Multidisciplinary
Satoshi Shibuya, Satoshi Unenaka, Yukari Ohki
Summary: The rubber hand illusion is a perceptual illusion that can also occur with delayed visual feedback, causing proprioceptive drift. The study found that hand ownership and localization are caused by distinct multisensory integration processes.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Giorgio Vallortigara
Summary: The distinction between sensation and perception lies in their association with consciousness, with the former being connected to bodily actions. The evolutionary reason for this distinction can be traced back to organisms' movement and their understanding of external stimuli. The Erich von Hoist Reafferenzprinzip effectively models this distinction by generating efference copies associated with motor commands.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2021)
Article
Anesthesiology
Maria Lalouni, Jens Fust, Viktor Vadenmark-Lundqvist, H. Henrik Ehrsson, Konstantina Kilteni, Karin Birgitta Jensen
Summary: Self-induced pain can be predicted and downregulated by a copy of motor information from the body's own movement. This phenomenon, known as sensory attenuation, allows for differentiation between self-produced stimuli and stimuli produced by others. The study shows that sensory attenuation occurs during both self-induced pain and imagery of self-induced pain, with potential clinical implications for pain management in patients with self-injury behavior or chronic pain conditions.
Article
Multidisciplinary Sciences
D. Farizon, P. F. Dominey, J. Ventre-Dominey
Summary: This study explored the impact of sensory manipulation on robotic embodiment related to social cognition, showing that tactile induction has more generalized effects on ownership, location, and agency. Interestingly, the strength of positive social feelings towards the robot does not seem to be directly linked to the intensity of embodiment sensations.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Cristina de la Malla, Alexander Goettker
Summary: This study shows that information about both position and velocity are crucial for goal-directed movements. Impaired velocity information leads to saccades landing at positions where targets were approximately 100 ms before the saccade, while hand movements remain accurate. Longer latencies of hand movements allow for additional time to process sensory information. Increasing the observation period of the moving target before making the saccade improves the accuracy of saccades. Hand movements with shorter latencies show higher curvature, indicating corrections based on updated sensory information.
SCIENTIFIC REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Lisa M. Fenk, Anmo J. Kim, Gaby Maimon
Summary: The study found that there were motor-related signals in flying Drosophila during flight turns, but these signals were weak or non-existent when turning in response to brief pulses of unidirectional visual motion. This suggests that the initiation of a locomotor act can affect the modulation of visual processing.
Article
Neurosciences
Francois M. Lambert, Mathieu Beraneck, Hans Straka, John Simmers
Summary: Neural replicas of the spinal motor commands play an important role in producing gaze-stabilizing eye movements and have been conserved during vertebrate evolution. They provide estimates of the sensory consequences of behavioral action and can counteract the perturbing effects of self-generated head/body motion.
CURRENT OPINION IN NEUROBIOLOGY
(2023)
Article
Clinical Neurology
Haike Dietrich, Cauchy Pradhan, Felix Heidger, Roman Schniepp, Max Wuehr
Summary: This study found that ocular-motor deficits in patients with downbeat nystagmus (DBN) were attenuated and nystagmus frequency was reduced during walking. This suggests that ocular-motor control disturbances are selectively suppressed during locomotion in DBN.
JOURNAL OF NEUROLOGY
(2022)
Article
Neurosciences
Kyunghee X. Kim, Corby L. Dale, Kamalini G. Ranasinghe, Hardik Kothare, Alexander J. Beagle, Hannah Lerner, Danielle Mizuiri, Maria Luisa Gorno-Tempini, Keith Vossel, Srikantan S. Nagarajan, John F. Houde
Summary: Alzheimer's disease (AD) is a neurodegenerative disease that impairs cognitive function and language abilities. This study investigates how AD affects the accuracy of auditory feedback predictions during speaking. The researchers found a significant reduction in speaking-induced suppression (SIS) in AD patients compared to healthy controls, indicating inaccurate auditory feedback predictions in AD speech.
Article
Multidisciplinary Sciences
Elena Fuehrer, Dimitris Voudouris, Alexandra Lezkan, Knut Drewing, Katja Fiehler
Summary: The article discusses the phenomenon of tactile suppression, where tactile sensations on a moving hand are perceived weaker compared to a stationary hand. It presents evidence that tactile suppression is specifically tuned to predicted sensory states of a movement, supporting the role of precise sensorimotor predictions in this phenomenon.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Neurosciences
Clara Fritz, Eckart Zimmermann
Summary: In this study, we investigated the effects of prolonged exposure to a delay between an action and the generated sensation on sensory attenuation for self-touch. We found that after systematic exposure to a delay, artificially delayed touch can feel more intense and non-delayed touches can appear less intense. Furthermore, our data show that the temporal selectivity of sensory attenuation of self-touch depends on presenting a singular test delay only.
EXPERIMENTAL BRAIN RESEARCH
(2023)
