PSYCH 1 Lecture Notes - Lecture 27: A Delta Fiber, Basilar Membrane, Survival Function
Document Summary
The receptors at the tip of the tongue are the most responsive to chemical substances. According to the ___ theory of pitch perception, different frequencies stimulate different areas on basilar membrane dissolved in salvia. The somatic system is in the periphetal lobe. The stimuli: mechanical, thermal or chemical energy applied to the surface of. Cells in the nervous system are triggered by small areas on the body"s surface. Stimuli at centre have opposite effect of stimuli falling outside of the centre. Sensory homunculus : shows the relative size of the cortex devoted to various body parts (textbook) Not size of the body part but the sensitivity. Pain in the absence of the physical causes (psychosomatic disorders) Placebo effects simply believing is sometimes enough to help take the pain. Boys tend to get back up whereas girls cry. After losing a limb, patients report still feeling pain or burning sensations, even though they no longer have the body part.
