temporal and occipital lobes

temporal lobe landmarks

• inferior temporal gyrus

• wernicke’s area

• heschl’s gyrus

• belt

inferior temporal gyrus

• places memory into long-term storage, navigation in space, sense of smell

• face of recognition

heschl’s gyrus

primary auditory reception

• lesion causes cortical deafness

• BA 41

belt region

higher order auditory processing

• BA 42

superior temporal gyrus and sulcus

feature detection from acoustical signal

• lesion causes cortical deafness

posterior STG (wernicke’s area)

lexical processing

• lesion causes fluent aphasia, auditory verbal agnosia

hippocampus

encoding short term memory into long term memory

• lesion causes retrograde amnesia

fusiform gyrus

face recognition 

• lesion causes prosopagnosia (face agnosia)

dorsal “where” stream

includes wernicke’s and broca’s area, and is very involved in auditory to motor/ sound to articulation-articulation mapping for analysis by synthesis auditory perception of speech

ventral “what” stream

deriving meaning from sound and involving STS and MTG