PSYC 2410 Lecture Notes - Receptive Field, Chlorophyll, Chromophore
6 Apr 2013
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Document Summary
Chapter 6 from lecture: exteroceptive sensory systems: bring info from the external environment to the body. Sensation: the process of detecting a stimulus (receptor) Perception: the higher order process of integrating, recognizing and interpreting patterns of sensations. Case example: the man who mistook his wife for a hat. Hierarchical organization: (receptor to thalamus, to thalamic nuclei, to cortex) Receptors: different for vision, hearing, olfaction, etc. and they project to other structures. Other structures (eg. thalamic nuclei): then project to the cortex. Cortical processing: primary sensory cortex (specific to each sense), secondary sensory cortex (by large also specific for sense), associate cortex (receive input from multiple senses and integrate them together). Vision : produces an internal representation of the outside world. A perception of reality based on specific receptors (hardware) Interspecific differences: eg. snakes can see infrared, insects see uv light. Top-down influence: attention, individual experience, etc. affect perception: eg. Same scene viewed differently by different people with different interests.
