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Humans excel at applying learned behavior to unlearned situations. A crucial component of this generalization behavior is our ability to compose/decompose a whole into reusable parts, an attribute known as compositionality. One of the fundamental questions in robotics concerns this characteristic: How can linguistic compositionality be developed concomitantly with sensorimotor skills through associative learning, particularly when individuals only learn partial linguistic compositions and their corresponding sensorimotor patterns? To address this question, we propose a brain-inspired neural network model that integrates vision, proprioception, and language into a framework of predictive coding and active inference on the basis of the free-energy principle.
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 PDFJoint action partners modulate the first step of an action sequence to communicate a distal goal.
Acta Psychol (Amst)
January 2025
Department of Linguistics, Cognitive Science, and Semiotics, Aarhus University, Jens Chr. Skous Vej 2, 1485-638 Aarhus, Denmark; Interacting Minds Centre, Aarhus University, Jens Chr. Skous Vej 2, 1485-638 Aarhus, Denmark. Electronic address:
When two co-actors perform a joint action, they often communicatively modulate their instrumental actions so as to facilitate each other's predictions of their immediate, proximal goals. Here, we ask whether co-actors would also engage in such "sensorimotor communication" for distal goals, specifically those that result from a two-step action sequence. To address this question, we asked pairs of participants to work together to deliver an animated box to one of two delivery locations displayed on a computer screen.
View Article and Find Full Text PDFAberrant network topological structure of sensorimotor superficial white-matter system in major depressive disorder.
J Zhejiang Univ Sci B
December 2024
Center for Cognition and Brain Disorders / Department of Neurology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 311121, China.
White-matter tracts play a pivotal role in transmitting sensory and motor information, facilitating interhemispheric communication and integrating different brain regions. Meanwhile, sensorimotor disturbance is a common symptom in patients with major depressive disorder (MDD). However, the role of aberrant sensorimotor white-matter system in MDD remains largely unknown.
View Article and Find Full Text PDFNeural representation of sensorimotor features in language-motor areas during auditory and visual perception.
Commun Biol
January 2025
School of Psychology, Shenzhen University, Shenzhen, China.
Speech processing involves a complex interplay between sensory and motor systems in the brain, essential for early language development. Recent studies have extended this sensory-motor interaction to visual word processing, emphasizing the connection between reading and handwriting during literacy acquisition. Here we show how language-motor areas encode motoric and sensory features of language stimuli during auditory and visual perception, using functional magnetic resonance imaging (fMRI) combined with representational similarity analysis.
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