PSYO 2470 Lecture Notes - Lecture 5: Posterior Parietal Cortex, Postcentral Gyrus, Nociception
4 Feb 2018
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Document Summary
Postcentral gyrus: 3a, 1, 2 (helps to identify objects by just touch). Posterior parterital cortex: areas 5, 7 (spatial processing). Involved in somatic sensation, visual stimuli, movement, planning, and attentiveness. Damage to this area causes neurological disorders. (depending on location and how bad the damage is) Agnosia: disability to identify objects by vision. Asterognosia: disability to identify objects by touch (only). Neglect syndrome (contra lateral neglect): deficit in attention to and awareness of one side of the field of vision is observed. Inability of a person to process and perceive stimuli on one side of the body or environment. pain & nociception. This is a perceptual phenomena (a motivational component). *it is important to field pain because it give us indicatio about harm and danger. Types (based on anatomy) free nerve endings of c fibres (unmyelinated). *nociceptors are found in almost all tissues (like hair)
