Behavioral Neuro Flashcards
What centers are located in the temporal lobe?
Wernicke's Speech Center (Dominant) New Verbal memory(MTL Lt) New visual memory (MTL rt) Semantic Memory (lat) Face/Object Recognition(post) Emotional Processing(Amyg)
What is the common reason for Amnesic Syndromes?
Disruption of the Papez circuit
What is the common reason for damage to the MTL?
Hypoxia, HS encephalitis, Early AZ, PCA strokes, surgery
What is the common reason for damage to the Diencephalon?
Korsakoff Synd(thiamine def), thalamic strokes, surgery
What is the common reason for damage to the Basal Forebrain?
ACA Aneurism bleed or clipping w/ damage to small perforating arteries
Where are memories stored?
Hippocampus
What is the role of the frontal lobe?
Decides whether a retrieved memory is plausable for a given context (cant tell true mem from false mem)
What centers are in the Parietal Lobe?
Cortical Sensation
Praxis (Dom lobe)
Spatial Orientation (non-dom lobe)
WHat is the purpose of the Non-dominant Parietal lobe?
Neglect
Anosagnosia
Dressing Apraxia
Visuo-spatial Disorientation
What centers are found in the Frontal lobe?
Broca’s speech center (Dom)
Executive functions(Bi)
Attention(Bi) -Social Cognition
What disfunction is associated with the MDPC?
Akinetic mutism, withdrawl, lack of initiative, poverty of speech
What disfunction is associated with the DLPC?
Impaired Abstraction and logical thinking, poor planning, poor judgement, impaired working memory and attn, poor memory organization
What disfunction is associated with the OFC?
Impulsive and antisocial behavior, high risk behavior, stimulus boundness, unstable mood
What is the role of Wernicke’s area?
Decoding and Generating speech
What is the role of Broca’s area?
Motor part of speech
What happens if the connection between Wernicke’s and Broca’s is lesioned?
Pt can understand language but cannot formulate a response
What is Apraxia?
Loss of the ability to perform a learned, familiar, purposeful motor act. HAve desire and Phys ability to do so.
What is Prosopagnosia?
Face Blindness- cant recognize familiar faces
WHat are areas of focus in the patient interview?
Cog Domains effected Progression of problems Insignt into condition ADLs Mood ASK FAMILY SAME QUESTIONS!
What labs should be done in Eval of Dementia?
Imaging study (MRI)
Blood work for rev causes: B12, TSH, LFTs, BMP, CBC
(Some: RPR, HIV, ApoE4)
What is the Progression of Alzheimer’s disease?
CC formation of new memories
Prog: Visuospatial, naming and semantic memory
Orientaton impaired
Symp onset later in life
What is mild cognitive impairment in AD?
There is a decline from normal but the Pt can still live independantly.
WHat are the features of Frontotemporal Dementia?
Most Underdiagnosed
Heterogeneous presentation
CC: Beh change, Imp speech, dysexecutive synd
Earlier onset
What are the traits of Subcortical dementia?
Pres with Slowed Psychomotor speed, memory loss, exec dysfunction
Assoc. w/ basal ganglia dis, demyelination, vascualr events
