PSYC 101 Lecture Notes - Lecture 4: Sensory Cortex, Cochlear Implant, Hearing Aid
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PSYC 101 Full Course Notes
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Consciousness (what is consciousness, sleep & dreaming, drugs) Perception: organization, identification, and interpretation of a sensation to form a mental representation. Even when the input is the same, perception can vary from person to person. In order to measure something as subjective as perception, psychophysics was developed (psychophysics: ways to measure the strength of a stimulus and the observer"s sensitivity to the stimulus) Can use thresholds to help with this. Absolute threshold: minimal intensity required to detect a stimulus. Many things can affect our perception of a sensory stimuli: in real life, 50% of the time other factors (external factors, noise, emotional state) might impact our ability to detect a sensory input differentiate between an actual signal and noise or distractors. Signal detection theory is a means to quantify the ability to (insert picture from powerpoint) Sensory adaptation: sensitivity to prolonged stimulation tends to decline as the organism adapts to the stimulation.
