PSYC 2000 Lecture Notes - Lecture 4: Color Vision, Opponent Process, Cornea
Document Summary
Anatomy of the eye (figure in book) Light enters the eye through the pupil. The cornea and the lens help to focus the light. The retina contains special cells that transform light to nerve impulses called rods and cones. Take 20-30 minutes to fully adapt to darkness. Adapt fully to darkness in 2-3 minutes. Pitch: determined by frequency: loudness: determined by amplitude, timbre: complexity of the sound (number of component waves involved in it) In book: parts: pinna, ear canal, ear drum, vestibular organ, ear drum moves in response to vibrations. 3 bones in the middle ear move: the basilar membrane vibrates, hairs in the basilar membrane trigger nerve impulses, psychological responses to various sound intensities. The olfactory system: parts, olfactory bulb, olfactory epithelium, turbinate bones, nasal cavity. Olfaction: sense of smell processed in the brain, olfactory bulbs. Only sense that does not pass through the thalamus: from the olfactory bulbs to higher cortical areas, including the amygdala.
