Capacity of perirhinal cortex network for recognising frequently repeating stimuli

Much evidence indicates that discrimination of the familiarity of visual stimuli is dependent on the perirhinal cortex of the temporal lobe. A stimulus can become familiar to animals or humans either when a stimulus is seen once but is behaviourally significant, or when a stimulus is not significant but repeats many times. This paper shows that a previously developed network model of familiarity discrimination in the perirhinal cortex is also able to judge familiarity for these different types of stimuli. The network continues to achieve high capacity and discriminative accuracy.