PSYC 2501 Lecture Notes - Lecture 2: Parahippocampal Gyrus, Extrastriate Body Area, Parietal Lobe
23 Jan 2018
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Synapses: gaps between neurons, neural circuits, neurons don"t act alone, they are all connected and they are connected in a specific way. Forms junctions with other cells: action potential, a brief electrical charge that travels down the axon, electrical impulse, all or nothing, rate of firing indicates how strong the signal is. Specific functions are served by specific areas of the brain: cortex. Frontal, temporal, parietal, occipital lobes: occipital lobe: responsible for vision, temporal lobe: hearing, parietal lobe: touch, pressure, pain, primary receiving areas of the lobes, localization for perception. Scenes, like a desert scene: extrastriate body area (eba, body parts, stick figures, not faces, frontal lobe. Localization of motor function and higher order cognition (planning, language, attention, problem-solving, personality, etc. : phineas gage. Foreman of a railroad company, iron shot through his head. Language impairment due to brain damage: broca"s aphasia. Impaired speech production: research suggests not just a problem with production but also with form (syntax, wernicke"s aphasia.
