Ongoing Dynamics of Memory Representations

old_uid5059
titleOngoing Dynamics of Memory Representations
start_date2008/06/11
schedule09h45
onlineno
location_infosalle Leduc
summaryThe ability to associate some stimuli while differentiating between others is an essential characteristic of biological memory. We address this issue in the context of attractor neural networks that store correlated patterns. We introduce a learning mechanism that involves novelty-facilitated modifications. This mechanism generates a dependency of synaptic modifications on previously acquired memories, enabling a wide spectrum of memory associations, ranging from absolute discrimination to compete mering. The model predicts that memory representations should be sensitive to learning order, consistent with our psychophysical studies of face recognition.
oncancelséminaire exceptionnel
responsiblesvan Vreeswijk, Hansel