Evidence for neural wavelet packet computations ?
Averaged multiunit potentials elicited by biologically relevant acoustic stimuli strongly resemble Symlet wavelet packets in bat auditory cortex as determined by cross correlation analysis. Since neurons are thought to encode information digitally using rate codes, this result suggested the possibility of analog neurocomputing. The characteristic signature of symlet wavelet packet computations typically employs dyadic scaling and translations. We sought additional indications of analog neurocomputing by examining the distribution-averaged potential durations and response latencies for evidence of dyadic scaling. We report here evidence of dyadic scaling in averaged potential duration and response latency distributions.
wavelet packets analog neurocomputing