PSYC 6 Lecture Notes - Lecture 5: Olfactory Bulb, Frontal Lobe, Psych
15 Oct 2020
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Document Summary
Dogs have 40x olfactory receptors than humans. Olfaction- smell, most direct sense to the brain. Odorants- chemical particles that pass into nose, sniffed into nasal cavity. Olfactory epithelium- thin layer of tissue embedded with thousands of smell receptors. Possibility 1 (unlikely): each receptor responsible for different odor. Possibility 2: each odorant stimulates several types of receptors, activation pattern determines olfactory perception. Bypasses thalamus, goes direct to olfactory bulb. Olfactory bulb- located just below frontal lobe, brain center for smell. Intensity of smell: processed in brain areas involving emotion and memory-> possibility of evoking feelings and memories. Pheromones- chemicals released by animals that trigger physiological or. Specialized receptors in nasal cavity respond to presence behavioral reactions in other animals. Haptic sense- touch that conveys sensations of temperature, pressure, and pain. Kinesthetic sense- receptors in muscles, tendons, and joints information enables us to pinpoint positions in space, movements of bodies and limbs.
