PS102 Lecture Notes - Lecture 5: Auditory Cortex, Basilar Membrane, Hair Cell
Document Summary
Sensation: the process through which the senses detect visual, auditory, and other sensory stimuli and transmit them to the brain. Perception: the process by which sensory information is actively organized and interpreted by the brain. Bottom-up processing: perception that proceeds by transducing environmental stimuli into neural impulses that move successively into more complex brain regions: we are actually observing stimuli and feeding it into the brain. Top-down processing: perception processes led by cognitive processes, such as memory or expectations: the brain is directing the senses telling you what you are seeing. Dual process theory: combines trichromatic and opponent-process theories. Perceptual sets: readiness to interpret a certain stimulus in a certain way. Ambiguous stimuli: stimuli that could be interpreted in different ways. Both sensation and perception are critical for our interpretation and interaction with our environment. Sensory receptive cells: specialized cells that convert a specific form of environmental stimuli into neural impulses.
