Gewichtssense

Gewichtssense is a term used to describe the perceived weight of objects as processed by the somatosensory system. In this framing, weight perception is not the result of a single dedicated receptor, but emerges from the integration of tactile feedback, proprioception, muscle force, and contextual cues from vision and prior experience.

Physiology and mechanisms. Tactile input from cutaneous mechanoreceptors (Merkel, Meissner, Pacinian, Ruffini) detects contact pressure and skin stretch as an object is lifted or held. Proprioceptive receptors in muscles and tendons (muscle spindles, Golgi tendon organs) measure muscle length and force, providing information about load. Receptors in joints and ligaments and the vestibular system contribute to a gravitational reference frame. The central nervous system combines these signals in somatosensory and parietal cortices, and motor planning and efference copy modulate perception during movement.

Perceptual aspects. The perceived weight depends on actual mass, gravity, lift dynamics, friction, and expectations; classic effects include the size-weight illusion, where smaller objects feel heavier than larger ones of equal mass. Weight perception can adapt with experience or vary under different lifting speeds and release timing.

Clinical and applied relevance. Alterations in gewichtssense can occur after nerve injury or neuropathies, and haptic interfaces in virtual reality and prosthetics aim to reproduce weight-related sensations. The concept is closely related to weight perception, haptics, proprioception, and the sense of gravity in neuroscience.