PSYC31H3 Study Guide - Retina, Tourette Syndrome, Striatum
Document Summary
There is no localizable single store for the meaning of a given entity or event within a cortical region. Meaning is achieved by widespread multiregional activation of fragmentary records pertinent to a given stimulus. Any given behaviour is the product of a myriad of complex neurophysiological and biochemical interactions involving the whole brain. Neurobehavioural syndrome: cluster of deficits that tend to occur together with some regularity. Lesions: localized abnormal tissue changes (although localized, still may affect many functions when the damaged neural structure is involved with more of less different functions) When site of lesion is known, it is possible to predicted what the cognitive deficit outcome is. Brain"s processing functions take place at multiple levels (e. g. encoding a single modality of a percept, energizing memory search) within complex, integrated systems. Analogy: car w/o fuel tank = incapable of moving forward, however we cannot infer that the function of the fuel tank is to propel the car.
