PSYB65H3 Chapter Notes - Chapter 7: Transcranial Magnetic Stimulation, Substantia Nigra, Dopaminergic Cell Groups
27 Jul 2017
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Provides a measure of short-term recall of spatial position, an ability we call block span. Test can be made more difficult by determining the maximum block span of an individual (say 6 blocks), and then adding one (span+1) The participant will fail on the first presentation, but given the span+1 repeatedly, the participant will eventually learn it. Span+1 identifies a different form of memory from block span different types of neurological dysfunction interfere differentially with tasks that superficially appear to be quite similar. The rat is released and searches for the platform. Once the rat finds the platform, the animal is removed from the pool and after a brief delay (such as 10 seconds) is released again. Akinesia (slowness or absence of movement), short footsteps, and tremor: drugs such as l-dopa, an agonist that enhances dopamine production, and atropine, and antagonist that blocks acetylcholine production, relieve these symptoms in human patients. Clinical focus 7-2 mild head injury and depression (pg. 227)
