Experiments suggest that frontal cortex is involved with working memory for problem solving and planning of behavior
Frontal Lobe & Memory
The left frontal lobe (colored regions at left) supports our ability to retrieve the meaning of words and objects.
Lateral Intraparietal Cortex (LIP)
Cortex buried in intraparietal sulcus
Involved in working memory
Responses specific to vision
Example: monkey looks at fixation point while a stimulus is flashed in periphery; after delay, monkey moves eyes to where the stimulus was
Cells in LIP seem to store information about where the eyes are to be moved
they remain active during the delay - specific for visual working memory
There is a different area specific for auditory working memory
Many Structures are Involved in Memory
Summary – Memory Pathway #1
Visual information is first routed through the thalamus to the visual area of the cerebral cortex.
This neural activity is the basis for the sensory register
Summary – Memory Pathway #2
Information is relayed to the frontal lobes where it is held in short term memory
Summary – Memory Pathway #3
Information that is stored in long-term memory is held in the hippocampus for weeks or months, and then transferred to the area of the cerebral cortex near where it was originally process for long-term storage
Summary – Memory Pathway #4
When we recall information from long term memory, it is routed again to the frontal lobes, where it is held in short-term, or “working” memory.