Adaptability to changes in temporal structure is fornix-dependent.
Recognition memory deficits, even after short delays, are sometimes observed following hippocampal damage. One hypothesis links the hippocampus with processes in updating contextual memory representation. Here, we used fornix transection, which partially disconnects the hippocampal system, and compares the performance of fornix-transected monkeys with normal monkeys on two versions of a delayed-matching-to-position task with short delays. Spatial recognition memory was affected by fornix transection only when the temporal structure of the task changed across trials, while differences in motor control, motivation, perception, or short-term memory were not critical. We attributed the deficit to a compromised ability in tracking changes in task temporal structure.
Duke Scholars
Altmetric Attention Stats
Dimensions Citation Stats
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Time Perception
- Spatial Memory
- Recognition, Psychology
- Reaction Time
- Neuropsychological Tests
- Neurology & Neurosurgery
- Motor Activity
- Motivation
- Memory, Short-Term
- Male
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Time Perception
- Spatial Memory
- Recognition, Psychology
- Reaction Time
- Neuropsychological Tests
- Neurology & Neurosurgery
- Motor Activity
- Motivation
- Memory, Short-Term
- Male