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Perirhinal cortex lesions that impair object recognition memory spare landmark discriminations

View Article: PubMed Central - PubMed

ABSTRACT

Loss of perirhinal cortex spares mirror-imaged landmark discriminations.

Perirhinal cortex lesions do not disrupt latent spatial learning.

Further underlines dissociation between perirhinal and hippocampal function.

Further underlines dissociation between perirhinal and hippocampal function.

No MeSH data available.


Active learning of the location of an escape platform in a corner of the water-maze. The graphs show the latency to reach the platform when released in the centre of the pool.
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fig0020: Active learning of the location of an escape platform in a corner of the water-maze. The graphs show the latency to reach the platform when released in the centre of the pool.

Mentions: The animals then received four sessions (four trials per session) of active training in the square pool with one striped wall (Fig. 1). On each trial, rats were required to escape from the pool by swimming to the submerged platform located in the same corner as during passive training. The rat was placed in the centre of the pool facing the middle of one of the walls. Rats were allowed 60 s to locate the submerged platform. Rats remained on the platform for 30s. Between each trial, the square pool was rotated either clockwise or anticlockwise 90°. The mean escape latency (Fig. 4) decreased with training (F3,78 = 27.7, P < 0.001), with no group effect (F < 1) nor interaction (F < 1).


Perirhinal cortex lesions that impair object recognition memory spare landmark discriminations
Active learning of the location of an escape platform in a corner of the water-maze. The graphs show the latency to reach the platform when released in the centre of the pool.
© Copyright Policy - CC BY
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4998350&req=5

fig0020: Active learning of the location of an escape platform in a corner of the water-maze. The graphs show the latency to reach the platform when released in the centre of the pool.
Mentions: The animals then received four sessions (four trials per session) of active training in the square pool with one striped wall (Fig. 1). On each trial, rats were required to escape from the pool by swimming to the submerged platform located in the same corner as during passive training. The rat was placed in the centre of the pool facing the middle of one of the walls. Rats were allowed 60 s to locate the submerged platform. Rats remained on the platform for 30s. Between each trial, the square pool was rotated either clockwise or anticlockwise 90°. The mean escape latency (Fig. 4) decreased with training (F3,78 = 27.7, P < 0.001), with no group effect (F < 1) nor interaction (F < 1).

View Article: PubMed Central - PubMed

ABSTRACT

Loss of perirhinal cortex spares mirror-imaged landmark discriminations.

Perirhinal cortex lesions do not disrupt latent spatial learning.

Further underlines dissociation between perirhinal and hippocampal function.

Further underlines dissociation between perirhinal and hippocampal function.

No MeSH data available.