sense, strength sense, sense of
The term depth sensitivity (also proprioceptive perception ) describes the perception of certain stimuli from within the body. Depending on the position of the receptors , it is compared with the surface sensitivity. The depth sensitivity is assigned to the interoception and provides the essential information for proprioception :
- Position sense (or positional sense ), which provides information about the position of the body in space and the position of the joints and the head
- Sense of strength that provides information about the state of tension in muscles and tendons
- Sense of movement (or kinaesthesia , from ancient Greek κινέω kineō , German 'move, move' and ancient Greek αἴσθησις aisthēsis , German 'perception, experience' ), through which a sensation of movement and the recognition of the direction of movement is made possible.
When it comes to depth sensitivity , it is mainly about the body's own perception . Closely related are vestibular perception , with which changes in position and changes in position such as rotations can be perceived, tactile perception (surface sensitivity) and the perception of the internal organs (entero- or visceroception ).
The proprioceptive perception is based on receptors in joints , muscles ( muscle spindles ) and tendons ( Golgi tendon organs ).
Proprioception receives information from muscles, tendons and joint capsules. Perception of the position and movement of the body in space, information registered by specific receptors ( proprioceptors ) about muscle tension (Golgi tendon organ), muscle length (muscle spindle) and joint position or movement are partially connected at the spinal cord level (monosynaptic) (proprioceptive reflexes).
Proprioception is transmitted to the brain via the anterior and posterior spinocerebellar tracts and the posterior cord tracts .
For example, it is deep sensitivity that makes walking possible, but also grasping and other activities. Dancers , acrobats , jugglers , musicians , tightrope walkers , athletes , mountaineers and cyclists need a distinctive deep sensitivity. If it is disturbed, for example by illness, medication or drugs such as alcohol , familiar movements are suddenly difficult or even impossible, and the risk of work-related accidents is increased for craftsmen .
- Franz-Viktor Salomon: nervous system, systema nervosum. In: F.-V. Salomon, H. Geyer, U. Gille (ed.): Anatomy for veterinary medicine . Enke, Stuttgart, 2004, ISBN 3-8304-1007-7 , pp. 464-577.
- ^ Robert F. Schmidt, Hans-Georg Schaible (ed.): Neuro- and sensory physiology. 5th edition. Springer, Berlin 2006, ISBN 3-540-25700-4 , p. 215.