Title :
A two-neuron cross-correlation circuit with a wide and continuous range of time delay
Author :
Tapson, J. ; Vismer, M.P. ; Jin, C. ; van Schaik, A. ; Folowosele, F.O. ; Etienne-Cummings, Ralph
Author_Institution :
Univ. of Cape Town, Cape Town
Abstract :
We describe a circuit of two spiking neurons which extracts mathematically accurate cross-correlations from the signal inputs. It differs from prior circuits such as coincidence detectors or enhanced motion detectors in that it does not require an a priori fixed delay between input signals to be selected. The output, in the form of a differential spike histogram, displays a mathematical cross-correlation in the conventional correlation vs. time form.
Keywords :
delay circuits; detector circuits; mathematical analysis; a priori fixed delay; coincidence detectors; enhanced motion detectors; signal cross-correlations; spiking neurons; time delay; two-neuron cross-correlation circuit; Acoustic noise; Autocorrelation; Circuits; Delay effects; Detectors; Fires; Motion detection; Neurons; Noise level; Systems engineering and theory;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541444
