PSY 246 Chapter Notes - Chapter 5: Palilalia, Chorea, Thalamotomy
Document Summary
Accurate movements depend on our ability to monitor the position and placement of our body and its parts, which relies on somatosensory feedback from joints, tendons, muscles, and skin. Many of the adjustments we make to our movements are guided by somatosensory feedback. Many of the automatic adjustments we make to movements occur unconsciously; involve higher cortical areas. Hapsis: sensations of tine touch and pressure. Proprioception: awareness of the body and its position in space. Mechanoreceptors: react to distortion such as bending or stretching; most of the sensory receptors in the skin; also wrap around the hairs that cover the body. Neuralgia: pain that does not result from any obvious lesion. Spinal cord organized into dorsal and ventral root ganglia. Dorsal spinothalamic tract: responsible for transmitting information about proprioception and hapsis; enters spinal cord through the dorsal root ganglion and synapses ipsilaterally in the dorsal column of the spinal cord.
