PSYC 211 Lecture Notes - Lecture 18: Posterior Parietal Cortex, Auditory Cortex, Two-Streams Hypothesis
14 Jun 2016
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The primary auditory cortex: the primary auditory cortex is hidden the upper bank of the lateral fissure, the belt regions is the first level of auditory association cortex, the parabelt is the second level of auditory association cortex. The what and where streams: dorsal stream: o terminates in the posterior parietal cortex. Involved in sound localization (where: ventral stream o terminates in the temporal lobe. Involved with the analysis of complex sounds (what) Birdsong: auditory communication in birds, birds raised in different regions acquire different dialects. Somato-senses: provide info about what is happening on the surface of the skin and inside it, there are three interaction somatosensory systems o exteroceptive. Monitors info about the position of the body and its posture (kinesthesia) Provides info about the conditions within the body (blood pressure) o proprioceptive. The stimulus: the cutaneous senses (skin senses respond to different types of stimuli o vibrations o pressure. Move our fingers across a rough surface.
