Thalamus and Hypothalamus Flashcards
Anterior Nucleus
correlates to cingulate gyrus
promote working memory or learning
Mediodorsal Nucleus
correlates to prefrontal cortex
receives input from amygdala
motivation
Pulvinar Nucleus
correlates to parieto-occipital cortex and superior colliculi
visual- auto eye mvmts for tracking
Medial Geniculate Nucleus
correlates to auditory cortex
Lateral Geniculate Nucleus
correlates to visual cortex
Ventral Posteriomedial Nucleus
correlates to somatosensory cortex
face
Ventral Posteriolateral Nucleus
correlates to somatosensory cortex
body
Ventral Anterior Nucleus
correlates to substantia nigra, pars reticulata, internal globus pallidus
Ventral Lateral Nucleus
correlates to substantia nigra, pars reticulata, internal globus pallidus
deep cerebellar nucleus
Lateral Dorsal Nucleus
correlates to cingulate gyrus
Intralaminar Nucleus
correlates to internal globus pallidus, reticular formation
Reticular Activating System
Reticular Activating System
reticular formation activates intralaminar nuclei
maintain conscious state
disrupt- lose consciousness
Diencephalic Amnesia
lesion of anterior nucleus
Korsakoff’s Syndrome
infarct or alcoholism associated degeration causing thiamine deficiency
impaired info transfer from working to long term memory- AN
Mediodorsal Lesions
disorientation to environment
learning/ memory impairment
Major Depressive Disorder
Blood Supply to Thalamus
Posterior Cerebral and Posterior Communicating
Damage to L LGN
right homonymous hemianopia
Damage to L MGN
impaired binaural processing (spatial localization)
Damage to L VPL and VPM
right face and body sensory loss
Damage to L VA and VL
impaired motor coordination and fine tuning
Thalamostriate Vein
drains thalamus
Ant Hypothalamic Area
Heat dissipation
thermosensory neurons
activate sweating and vasodilation
Paraventricular Nucleus
increase BP and heart rate
Dorsomedial Nucleus
increase blood pressure and heart rate
