Reduced dorsal CA1 activity limits retention of the temporal component of declarative memory in the Cntnap2 knockout mouse model of autism.

Reduced dorsal CA1 activity in Cntnap2 knockout mice impairs long-term retention of temporal associations in declarative memory.

• Why it matters: Understanding hippocampal dysfunction in autism is crucial because it may explain cognitive and memory deficits observed in the disorder.
• What they did: Researchers used trace fear conditioning, fiber photometry, and optogenetics in Cntnap2 knockout mice to assess CA1 activity and memory performance, focusing on temporal binding and spatial memory.
• The result: Findings show that decreased CA1 activity during temporal gaps correlates with impaired long-term memory retention and a shift toward procedural learning, highlighting circuit-level mechanisms of cognitive inflexibility in autism.