Medial Temporal Lobe Flashcards
Why is MTL considered the “Hub of Hubs”?
Highly interactive and well placed for integrating multiple brain regions, as well as coordinating learning and retrieval from the neocortex.
Hippocampus in the MTL is believed to be a map for what?
Spacial localization
What else is the Hippocampus associated with besides Spacial Localization?
Olfaction
Due to the Hippocampus’ location in the MTL it is ideally suited to _______
combine information between the neocortex and emotional (limbic) areas and to “bind” that information into memory traces.
The MTL is strategically located next to the inferior temporal lobe to take in what information?
high level, conscious visual information
What is the auditory cortex relationship with the MTL
auditory information may be fed into an episodic learning system of which the MTL is responsible.
Describe process of recall of episodic memory in MTL
Retrieval occurs when a conscious cue triggers the MTL, which in turn activates the entire neocortical ensemble associated with it.
The recovery of experiences always depends on what?
The Hippocampus
medial temporal lobe damage
affects all four operations of memory which are:
Encoding
Storage
Consolidation
Retrieval
In studies on recall of words and pictures, this area was active in the task along with the MTL
Words: Left prefrontal cortex activated
Pictures: Right prefrontal cortex activated
The neural circuits that initiate these types of implicit memory are independent of the MTL system
habit,
motor skill,
conditioned learning
MTL activation during Non-REM sleep
relative deactivation compared to resting wakefulness
MTL presentation in Schizophrenia
reductions in gray matter volume including in the hippocampus and amygdala
Changes in MTL differentiate these two mental disorders:
Schizophrenia and Bipolar Disorder
