Memory Flashcards
Encoding
Left frontal
Retrieval
Right frontal
Medial temporal
consolidation - permanent memory3
Neglect most often
non-dominant side -
right hemisphere lesion
often parietal
Spatial acalculia
problem with neglect
Patients with cortical basal degeneration have
neglect of right arm - dont use the limb contralateral to lesion - no weakness!!
Where is the lesion in a patient with motor neglect
Striatum (caudate , putamen)
Lateral thalamus
Frontoparietal cortex
when does alien hand syndrome occur?
Coprus callosum surgery for epilepsy -
often right side
Depression can cause cognitive difficulty
oFTEN reversible dementia
and cant tell the difference between BLACK BOARD and blackboard
Aprosodia is
often non-dominant hemisphere
cant convey or interpret emotional
can be motor aprosodia
- OFTEN right sided lesion
Dementia with Lewy bodies often characterized by
Hallucinations
- can be preceded by REM sleep behavior disorders
Semantic dementia
- fluent speech
- semantic paraphasias
- Good repitition
- no visual symptoms
LOSS OF meaning to words and objects - lesion in BILATERAL TEMPORAL POLE AND INFEROLATERAL CORTEX
Herpes encephalitis can cause
dense amnesia
Good attention, can concentrate but loss of memory
Prosody
Associated with a left sided aphasia lesion
Severe comprehension problems can still spare
whole body commands
Conduction aphasias characteristics
- Fluent speech
- Good comprehension
- Poor repitition
- poor naming
ARCUATE FASCICULUS
wernicke’s aphasia
- Fluent speech poor comprehension - pOOR repitition Poor naming POSTERIOR SUPERIOR TEMPORAL GYRUS
BROCA’S aphasia
- non-fluent
- Good comprehension
- poor repition
- poor naming
POSTERIOR INFERIOR FRONTAL LESION
Global aphasia
- non fluent -
poor everything - FRONTAL, TEMPORAL, PARIETAL LESION
Transcortical sensory aphasia
- fluent-
comprehension is poor. naming is poor - Good REPITITION
POSTERIOR TEMPORO-PARIETAL-OCCIPITAL junction - spares wernicke
Transcortical motor aphasia
- non fluent
- comprehension is fine, repition is fine
NAMING IS POOR
LESION FRONTAL LOBE spares broca’s
Mixed transcortical aphasia
- non fluent
poor comprehension, poor naming
but GOOD repitition
ANTERIOR POSTERIOR ASSOCIATION CORTEX sparing perisylvian language part
Anomic aphasia
- fluent speech, good comprehension and repitition
POOR NAMING
TEMPORAL TEMPORAL PARIETAL
