[I] Distribution of mutual information by spike counts and First Spike Latency (a) spike counts (b) First Spike Latency
[‡U] a tonotopic map of the auditory cortex
The linkage between map organization structure and single neuron processing in the auditory cortex
Many previous studies demonstrated that the primary sensory cortex has
functional clustering structures as a foundation for information processing.
For example, the auditory cortex has the tonotopic map which is a topology
preserving mapping of acoustic frequencies. On the other hand, the analytic
methods for single neuron study are developing in order to resolve how
neurons can encode the information of external stimuli. In particular,
recently dual coding hypothesis which combines rate coding and temporal
coding attracts attention as a new rule which resolves this problem, and
many physiological results support this hypothesis.
Previous studies, however, hardly clarify how this two concepts link each
other. The objective of my study is to demonstrate that application of
the method used in the single neuron study against whole auditory cortical
neurons can bridge the gap between these concepts, and to find out the
mechanism of the hierarchical neural network.
[I] Distribution of mutual information by spike counts and First Spike
Latency (a) spike counts (b) First Spike Latency
[‡U] a tonotopic map of the auditory cortex