PSY 101 Lecture 5: Psych notes pdf
Document Summary
* sensation : activation of receptors in sensory organs; detection of energy by sense organs. * energy from environment : pattern of responses in the ns. * perception : how we then make sense of all of this incoming info from environment - process of interpreting sensory info. * sensory receptions - neurons; link between outside environment & central nervous system. * absolute threshold - intensity needed for us to detect the stimulus 50 % of the time (+ how it affects by expectations - top down processing ) * absolute threshold in one situation in one situation may be different from another. * just noticeable difference : smallest change necessary for us to detect it. * anything that has to do with change. * hit : signal is there and person was able to detect it: for ex: there is a person with depression ; psychologist says : yes, you have symptoms consistent with depression.
