chapter 3 Biological foundations

Onesplitbrainvictimlearnedtousescrabbleletterswithther

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Unformatted text preview: Thereare4lobes:frontal,parietal,occipital,andtemporal;eachwithaparticularsensoryand motorfunction  ­ Speechandskeletalmotorfunctionsarelocatedinthefrontallobe  ­ Theparietallobegovernsbodysensations,separatedbythecentralfissurebetweenthefrontal Psych 1000 My Notes Page 18  ­ Theparietallobegovernsbodysensations,separatedbythecentralfissurebetweenthefrontal andparietallobe  ­ Visionisassociatedwiththeoccipitallobe MotorCortex  ­ Controls600ormoremusclesinvolvedinvoluntarybodymovementslieattherearofthefrontal lobe  ­ Specificbodyareasarededicatedinspecificpartsofthecortex Thesensorycortex  ­ Specificareashavebeenidentifiedtodifferentareasofthecortexwiththeexceptionoftasteand smell  ­ Somaticsensorycortexreceivessensoryinputthatgivesrisetosensationsofheat,touch,cold, balance,andbodymovement o Itliesintheparietallobebehindthemotorcortexwiththeuppermostpartscontrollingthe bottomofthebodyandthelowerpartscontrollingtheupperparts o Themajorsensoryareaforvisionliesattherearoftheoccipitallobe o Eacheyeandearsendssignalstooppositesidesofthebrain;thelossofsightorhearingin onehaslittleeffectontheother  ­ Whenwehearhighsounds,certainneuronsfireandwhenwehearlowsounds,otherneuronsfire  ­ Thesensorycortexisalsosensitivetoexperience  ­ Wernicke’sareainthetemporallobeisinvolvedinlanguagecomprehension  ­ Broca’sareaisinthefrontallobeisnecessaryfornormalspeechproduction  ­ Associationcortex isfoundinallregionsofthecerebralcortexisinvolvedinthehighestlevelof mentalfunctionsincludingperception,language,andthought o Damagetotheassociationcortexcancausedisruptionof...
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