Quiz 2 Flashcards
implicated in parkinsons
Dopamine in the nigrostrial pathway
addiction
Mesolimbic pathway VTA to nucleus acumbens
Basal Ganglia implicated in
movement AND aspects of cognition
Amygdala
fear
Temporal lobes implicated
in auditory processing AND visual recognition AND emotions
Multiple systems are involved
in selective attention including posterior parietal, brainstem, acc
Wernicke’s aphasia
comprehension difficulties…but also difficulties with expression
Right hemisphere implicated
in understanding prosody of speech
Dorsolateral prefrontal cortex
executive functioning, reflection, judgment AND implicated in working memory and cognitive flexibility
Ventromedial prefrontal cortex
inhibition AND implicated in mood/anxiety
Hippocampus
memory
Anosagnosia
not aware of difficulties
2 Main structures of the diencephalon
Hypothalamus, thalamus
diencephalon
located rostal to brainstem, includes pineal gland
thalamus
CPU of brain - processes/transmits signals from all senses to cortex;
- critical for optimal cortical arousal - and- attention; and critical for cognitive functioning and coordinating activation including timing and coordination of complex problem solving
“filtering” function
thalamus - helps to select which sensory and motor information will be allowed to pass to and from cortex and in what sequence (may fail in schizophrenia causing poor signal-to-noise ratio
thalamus lesions
may cause memory, cognitive, executive dysfunction
- dorsomedial nucleus and mammillothalamic tract are damaged in KORSAKOFF SYNDROME
hypothalamus
primary function is HOMEOSTASIS/regulation of
- water/thirst(electrolytes)
- food intake
- temperature
- autonomic activity (bp, hb, digestive, respiratory)
- sleep-waye cycle/circadian rhythmicity
- general body metabolism
