Visual Discrimination Learning Task
Objective: Assessment of visual discrimination learning ability in rats to compare with spatial learning impairment and determine selectivity of NMDA receptor antagonist effects on learning types
This is a Visual Discrimination Learning Task protocol using rat as the model organism. The procedure involves 5 procedural steps, 1 equipment items, 1 materials. Extracted from a 1989 paper published in Journal of Neuroscience.
Model and subjects
rat • Not specified • unknown • Not specified • Not specified
Study window
Estimated timing pending
Core workflow
Drug Administration • Visual Discrimination Learning Task • Sensorimotor Function Assessment
Primary readouts
- Visual discrimination learning performance
- Spatial learning performance
- Sensorimotor function during learning
- Retention of previously acquired spatial information
Key equipment and reagents
Use this page as an execution guide, then fall back to the source paper whenever you need exact exclusions, dosing details, or assay-specific caveats.
Confirm first
- Verify the animal model, intervention setup, and collection timepoints against the source paper.
- Check that every direct vendor link matches the exact specification your lab plans to run.
Use the page like this
- Work through the protocol steps in order and use the inline vendor chips only when you need to source or verify an item.
- Jump to Experimental Context for readouts, data shape, and analysis flow before planning downstream analysis.
Protocol Steps
Start here. The step list is optimized for running the experiment, with direct vendor links available inline when you need to source a cited item.
Drug Administration
Chronic intraventricular infusion of D,L-AP5 NMDA receptor antagonist
Note: Drug concentration was sufficient to block hippocampal long-term potentiation in vivo without affecting normal synaptic transmission
View evidence from paper
“chronic intraventricular infusion of the NMDA receptor antagonist D,L-2-amino-5-phosphonopentanoic acid (D,L-AP5)”
Visual Discrimination Learning Task
Assessment of visual discrimination learning ability in rats treated with AP5
Note: Task designed to compare learning performance with spatial learning impairment results
View evidence from paper
“chronic intraventricular infusion of the NMDA receptor antagonist D,L-2-amino-5-phosphonopentanoic acid (D,L-AP5) caused an impairment of spatial but not of visual discrimination learning in rats”
Sensorimotor Function Assessment
Evaluation of whether AP5-induced sensorimotor disturbances could account for spatial learning impairment
Note: Statistical analysis performed to determine independence of sensorimotor effects from spatial learning impairment
View evidence from paper
“AP5 sometimes caused a disturbance of sensorimotor function during learning, but one experiment addressing whether this disturbance could be responsible for the spatial learning impairment established that it was statistically independent”
Retention Testing
Assessment of retention of previously acquired spatial information in AP5-treated rats
Note: Designed to determine if AP5 affects memory consolidation or retrieval of already-learned spatial tasks
View evidence from paper
“Another experiment showed that AP5 did not affect the retention of previously acquired spatial information”
Hippocampal LTP Recording
In vivo recording of long-term potentiation in hippocampus to verify drug efficacy
Note: Confirmed that AP5 concentration used was sufficient to block hippocampal LTP without affecting normal synaptic transmission
View evidence from paper
“a final study, was found to be sufficient to block hippocampal long-term potentiation (LTP) in vivo without affecting normal synaptic transmission”