temporal lobe Flashcards
What structures and cortices are in the temporal lobe?
Sensory regions:
– Primary auditory cortex
– Primary olfactory cortex
Association regions
– Visual association cortex (object recognition)
* Fusiform face area
* Parahippocampal place area
– Auditory association cortex (sound recognition)
* Language and music
Subcortical structures (ch18)
– Hippocampus (Memory)
– Amygdala (Valence, associative learning)
what does the fusiform face area do?(FFA)
temporal lobe has specific areas for analysis of identity and
expression of upright faces
what is the Parahippocampal place area?
– Fusiform gyrus specialized in processing complex (natural)
scenes
what does the Superior temporal sulcus do?
-Categorization of auditory and visual stimuli in
object categories “cross-modal matching”
polymodal cells in STS
* Also important role of polymodal cells in STS in
social cognition (“theory of mind”): analysis of
social meaning of facial expressions, body posture,
gaze direction, movement direction, and
vocalization
* Recognizing sick vs healthy e.g. Lasselin et al.,
– Recognition and categorization of movements
what are some asymmetries in the temporal function?
-left:Dominance for analysis of speech
sounds and verbal memory (both
auditory and visual)
-Right temporal lobe
Dominance for analysis of musical
sounds and non-verbal memory (both
auditory and visual)
Might also be dominant for valence of
emotional expression (right lesions
lead to impairment of expression
recognition, whereas left lesions
generally do not)
Temporal lesions can lead to a broad range of dysfunctions:
- auditory and visual perception, language, long-term memory, personality
and emotion
- Bilateral lesions relatively larger effects
what are the Perceptual disorders of the temporal lobe?
- Disorders of auditory perception (speech and music)
- Disorders of visual perception
- Disorders of odor perception
- Object and word catgorization
- Visual- and auditory-input selection
- Memory dysfunction (ch 18)
- Affect and personality
