PSYCH 2E03 Chapter Notes - Chapter 6: Anosmia, Rose Oil, Entorhinal Cortex
25 Feb 2016
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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.
