PSY346H5 Lecture Notes - Lecture 3: Methylphenidate, Etiology, Tyrosine
Document Summary
If that reliable connection is repeated over time + space - repeated pairing changes strength of post synaptic potential. If continuously happens, eventually the magnitude of polarization, the epsp, increases in size. Since aps never increase in size we can"t look at in same way: when axons ending info, dendrite receiving. If the stimulus reliably produces a response, the strength of the physiological response increases. If the stimulus doesn"t reliably produce a response, the strength of the physiological response decreases. The effect of experience: mechanisms of plasticity. In this case 1 way working well, firing together, should see increase: on opp eye, eye that is occluded w/ cataract dev, it shouldn"t be as active, right hand diagram is what it should look like over time. If model is true about refinement, we should see pruning. Zebra stripe pattern: everything dark injected eye, everything light none injected eye, equally balanced, monocular deprivation.
