PSYC 221 Chapter Notes - Chapter 3: Transcranial Magnetic Stimulation, Mirror Neuron, Pliers

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Page 48-76, 28 pages page 1 of 9. The nature of perception: perception: experiences resulting from stimulation of the senses, from selecting, organizing, and interpreting these signals. Perception is the gateway to many types of other cognitions. Bottom-up processing: bottom-up processing: processing that begins with receptor stimulation. Sensory nerve transmits coded activity to the cns in: noisy info enters senses: light modified and bent by lens, vitreous humour, etc. o. Photoreceptors: receptor transduces energy into neural response o afferent projections o. Thalamus processes and relays info to higher areas: Cortical magnification of fovea, which has highest resolution of more important visual information: monkey injected with 2-deoxyglucose which is not absorbed but accumulates in active regions, can be observed with radiolabel. These are processed and pieced together in higher functions for perception. Perception depends on additional information: additional processing is needed to combine the geons into objects, where the combinations can create various different objects, and to name these objects.

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