Psychology 2115A/B Lecture Notes - Lecture 3: Mach Bands, Excitatory Synapse, Receptive Field
15 Aug 2016
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Brain=modular organization: sensory modalities have primary receiving areas. Tactile senses=parietal lobe: frontal lobe coordinates info received from 2+ senses. The human brain, showing the locations of the primary receiving areas for the senses in the temporal, occipital, and parietal lobes, and the frontal lobe, which is involved with integrating sensory functions. Key components of neurons: cell body, dendrites, axon or nerve fibre. Receptors=specialized neurons that respond to specific kinds of energy. Neuron on right consists of cell body, dendrites, and axon. Neuron on the left stimuli from the environment has a receptor in place of cell body. Receptors for : a=vision=ex: rod, b=hearing=hair cell from cochlea (inner ear, c=touch=touch receptor, d=smell=mucosa, e=taste=taste bud, each receptor is specialized to transduce a specific type of environmental energy into electricity. Arrows indicate the place on the receptor neuron where the stimulus acts to begin the process of transduction.
