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20 Cards in this Set
- Front
- Back
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What happens when you get lesions in the posterior parietal?
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Associate Agnosia
can draw a pen but can not identify |
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What happens when you get a lesion in the occipital lobe?
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Apperceptive agnosia
can describe what they see, but can not draw |
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What happens when you get a lesion in the prefrontal cortex?
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Inability to suppress inapproriate behavior
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What happens when you get a lesion in the right parietal cortex?
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inability to recognize left "arm, leg, testicle..."
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What happens in if you section the corpus callosum?
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diifuclty in understanding written material ONLY in the left visual field
i. Right hemisphere not good at inerpreting material so usually transmit info to weirnekes area via corpus callosum |
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What happens with a left temporal cortex lesion?
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difficulty to understand written materailassuming there is not visual pathway deficits
lesioned weinikes area |
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What area in the brain deals with heat dissipation?
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Preotic area in anterior hypotalamus
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What area in the brain deals with heat conservation?
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Posterior hypothalamus
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Where is leptin released and what does it do?
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realeased from fat cells
stimulates catabolic acitivities in the arcurate nucleus |
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What are the stages of memory?
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Encoding
Consolidation Storage Retrival |
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What does the arcuate nucleus control?
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feeding
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What does the Medial and Lateral preoptic nuclei involved in?
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temperature regulation
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What does the paraventricular nucleus control?
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endocrine and autonomic processes
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The two types of outputs in the hypothalamus?
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1. Parvocellular-
medially, secrete hypotalamic reasling hormones like CRH dorsally & ventally, project to medula and spinal cord for autonomic control 2. Magnocellular- Control endocrine function directly by releasing oxytocin and ADH into posterior pituitary |
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What if the ventral hypothalamus is lesioned?
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chronic hyperthermic
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What happens if the dorsal hypothalamus is lesioned?
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patient becomes hypothermic
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What will be secreted if a someone is exposed to a long term cold environment?
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TRH, which will increase release of T4 thyroxine from the pituitary gland and will increase heat by increasing metabolism
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What is the paraventricular nucleus?
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catabolic nucleus; when stimulated, it decreases appetite and increases energy expenditure
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What is the lateral hypothalamic nucleus?
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anabolic nucleus; when stimulated it increases appetite and decreases energy expenditure
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What heppens with a medial temporal area lesion?
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Prospagnosia- patient can not recognize faces
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