?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Slowness%3A+An+Objective+for+Spike-Timing-Dependent+Plasticity%3F&rft.creator=Sprekeler%2C+Henning&rft.creator=Michaelis%2C+Christian&rft.creator=Wiskott%2C+Laurenz&rft.subject=Neural+Modelling&rft.subject=Computational+Neuroscience&rft.subject=Theoretical+Biology&rft.description=Slow+Feature+Analysis+(SFA)+is+an+efficient+algorithm+for+%0Alearning+input-output+functions+that+extract+the+most+slowly+varying+features+from+a+quickly+varying+signal.++It+++%0Ahas+been+successfully+applied+to+the+unsupervised+learning+%0Aof+translation-%2C+rotation-%2C+and+other+invariances+in+a+%0Amodel+of+the+visual+system%2C+to+the+learning+of+complex+cell%0Areceptive+fields%2C+and%2C+combined+with+a+sparseness+%0Aobjective%2C+to+the+self-organized+formation+of+place+cells+%0Ain+a+model+of+the+hippocampus.%0A%0AIn+order+to+arrive+at+a+biologically+more+plausible+implementation+of+this+learning+rule%2C+we+consider+analytically+how+SFA+could+be+realized+in+simple+linear+continuous+and+spiking+model+neurons.+It+turns+out+that+for+the+continuous+model+neuron+SFA+can+be+implemented+by+means+of+a+modified+version+of+standard+Hebbian+learning.+In+this+framework+we+provide+a+connection+to+the+trace+learning+rule+for+invariance+learning.+We+then+show+that+for+Poisson+neurons+spike-timing-dependent+plasticity+(STDP)+with+a+specific+learning+window+can+learn+the+same+weight+distribution+as+SFA.+Surprisingly%2C+we+find+that+the+appropriate+learning+rule+reproduces+the+typical+STDP+learning+window.++The+shape+as+well+as+the+timescale+are+in+good+agreement+with+what+has+been+measured+experimentally.+This+offers+a+completely+novel+interpretation+for+the+functional+role+of+spike-timing-dependent+plasticity+in+physiological+neurons.+&rft.date=2006-12&rft.type=Preprint&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5281%2F1%2FSprekelerMichaelisWiskott06.pdf&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F5281%2F2%2FSprekelerMichaelisWiskott06.ps&rft.identifier=++Sprekeler%2C+Henning+and+Michaelis%2C+Christian+and+Wiskott%2C+Laurenz++(2006)+Slowness%3A+An+Objective+for+Spike-Timing-Dependent+Plasticity%3F++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5281%2F