Monkeys can associate visual stimuli with reward delayed by 1 s even after perirhinal cortex ablation, uncinate fascicle section or amygdalectomy

1997 ◽  
Vol 87 (1) ◽  
pp. 85-96 ◽  
Author(s):  
Sergei A Gutnikov ◽  
Yuan-Ye Ma ◽  
Mark J Buckley ◽  
David Gaffan
Keyword(s):  
Visual Stimuli ◽  
Perirhinal Cortex ◽  
Uncinate Fascicle

An Infomax Algorithm Can Perform Both Familiarity Discrimination and Feature Extraction in a Single Network

2011 ◽  
Vol 23 (4) ◽  
pp. 909-926 ◽  
Author(s):  
Andrew Lulham ◽  
Rafal Bogacz ◽  
Simon Vogt ◽  
Malcolm W. Brown
Keyword(s):  
Feature Extraction ◽  
Visual Stimuli ◽  
Perirhinal Cortex ◽  
Visual Feature ◽  
Large Numbers ◽  
Visual Feature Extraction ◽  
The Brain ◽  
Psychological Experiments

Psychological experiments have shown that the capacity of the brain for discriminating visual stimuli as novel or familiar is almost limitless. Neurobiological studies have established that the perirhinal cortex is critically involved in both familiarity discrimination and feature extraction. However, opinion is divided as to whether these two processes are performed by the same neurons. Previously proposed models have been unable to simultaneously extract features and discriminate familiarity for large numbers of stimuli. We show that a well-known model of visual feature extraction, Infomax, can simultaneously perform familiarity discrimination and feature extraction efficiently. This model has a significantly larger capacity than previously proposed models combining these two processes, particularly when correlation exists between inputs, as is the case in the perirhinal cortex. Furthermore, we show that once the model fully extracts features, its ability to perform familiarity discrimination increases markedly.

The Fading Affect Bias in Involuntary Memories Triggered by Negative and Positive Auditory and Visual Stimuli

2002 ◽  
Author(s):  
Rebecca Mehelich ◽  
Rebecca Davis ◽  
Bethany Ingram ◽  
Courtney Wood ◽  
Rodney J. Vogl ◽  
...  
Keyword(s):  
Visual Stimuli ◽  
Involuntary Memories

Effects of Aging on Source & Item Memory for Olfactory & Visual Stimuli

2007 ◽  
Author(s):  
Zachary C. Bayer ◽  
Rafael J. Hernandez ◽  
Andrea M. Brushfield ◽  
Caitlin E. Shea ◽  
Stephanie J. Farge
Keyword(s):  
Visual Stimuli ◽  
Item Memory ◽  
Effects Of Aging
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