PSYCH 2E03 Chapter Notes - Chapter 6: Anosmia, Rose Oil, Entorhinal Cortex
Document Summary
Taste signals can produce an immediate reflexive response based on an innate understanding of whether the food is appropriate to sustain life or destroy it: reflex is present even before birth. Higher concentration of salt, more likely to guess correctly. Ageusia: total loss of taste: injury to gustatory nerves, medications (e. g. cancer, depression) Chemotherapy destroys taste cells, receptors have a quick turn overtime. Hypogeusia: reduction in taste sensitivity: dry mouth, smoking, illness (e. g. flu, diabetes) Lose sense of smell: e. g. sweet things taste salty, e. g. metallic taste for cancer patients drug secreted in saliva. Detection thresholds are lowest for bitter > sour > salty > sweet: really sensitive to bitter, normally represents poisons. Can be affected by: other tastants in a mixture (masking, temperature (most sensitive at a temperature between body and room temp ~27 c) 3: age (decrease with age, older people over salt food, stimulation area.