Psychology 2115A/B Lecture : lec 10.docx

• School: Western University
• Department: Psychology
• Course: Psychology 2115A/B
• Professor: N/ A

Document Summary

Intensity threshold: more sensitive to some taste than others. Bitter is very adaptive, bitter response is our body telling us it is bad for us e. g. , caffeine in coffee, beer. Dermis: action layer, where nerve endings are located. Different thresholds for different parts of the body: Hands and feet are sensitive to discrimination threshold but not detection threshold. Stimulus: heat or activity of molecules in the air. Transmission of heat: when we first jump into a pool of 29 degrees it will feel cold until we adapt. Temperature perception: body has points very sensitive to hot or cold stimuli. Cold spots responsive to stimuli around 13-35 degrees. Hot spots responsive to stimuli around 25-40 degrees. Hot and cold spots are consistent on the body. Paradoxical cold: cold spots respond to hot (45-50 degrees) stimulus as cold. Stimulus: anything that causes tissue damage, hurts body parts, bodily harm. Power law: exponent between 1 and 2 not 3. 5.