The functional role of conscious sensation of movement
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The functional role of conscious sensation of movement. / Grünbaum, Thor; Christensen, Mark Schram.
I: Neuroscience & Biobehavioral Reviews, Bind 164, 105813, 2024.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - The functional role of conscious sensation of movement
AU - Grünbaum, Thor
AU - Christensen, Mark Schram
PY - 2024
Y1 - 2024
N2 - This paper proposes a new framework for investigating neural signals sufficient for a conscious sensation of movement and their role in motor control. We focus on signals sufficient for proprioceptive awareness, particularly from muscle spindle activation and from primary motor cortex (M1). Our review of muscle vibration studies reveals that afferent signals alone can induce conscious sensations of movement. Similarly, studies employing peripheral nerve blocks suggest that efferent signals from M1 are sufficient for sensations of movement. On this basis, we show that competing theories of motor control assign different roles to sensation of movement. According to motor command theories, sensation of movement corresponds to an estimation of the current state based on afferent signals, efferent signals, and predictions. In contrast, within active inference architectures, sensations correspond to proprioceptive predictions driven by efferent signals from M1. The focus on sensation of movement provides a way to critically compare and evaluate the two theories. Our analysis offers new insights into the functional roles of movement sensations in motor control and consciousness.
AB - This paper proposes a new framework for investigating neural signals sufficient for a conscious sensation of movement and their role in motor control. We focus on signals sufficient for proprioceptive awareness, particularly from muscle spindle activation and from primary motor cortex (M1). Our review of muscle vibration studies reveals that afferent signals alone can induce conscious sensations of movement. Similarly, studies employing peripheral nerve blocks suggest that efferent signals from M1 are sufficient for sensations of movement. On this basis, we show that competing theories of motor control assign different roles to sensation of movement. According to motor command theories, sensation of movement corresponds to an estimation of the current state based on afferent signals, efferent signals, and predictions. In contrast, within active inference architectures, sensations correspond to proprioceptive predictions driven by efferent signals from M1. The focus on sensation of movement provides a way to critically compare and evaluate the two theories. Our analysis offers new insights into the functional roles of movement sensations in motor control and consciousness.
KW - Faculty of Social Sciences
KW - Conscious sensation of movement
KW - Proprioception
KW - Efferent motor signals
KW - Illusions of movement
KW - Muscle vibration
KW - Motor control
KW - Optimal control theory
KW - Active inference
KW - Motor command
KW - Motor physiology
KW - Metacognition
KW - Sense of agency
KW - Consciousness
U2 - 10.1016/j.neubiorev.2024.105813
DO - 10.1016/j.neubiorev.2024.105813
M3 - Journal article
VL - 164
JO - Neuroscience & Biobehavioral Reviews
JF - Neuroscience & Biobehavioral Reviews
SN - 0149-7634
M1 - 105813
ER -
ID: 398639752