Quantification of the adaptation effect in a single site.

<p>A. The LFP variation in control sequence (black bar) and adapting sequences (gray bar) for a recording site. Flash mark indicates the adapter of the second sequence. B. Quantification of this variation by an index (AI). The positive value of AI shows that the neural response of a frequency in adapting sequence is weaker than that in control sequence. C. Comparison between firing rate of each frequency in control (black bar) and adapting (gray bar) sequences in MUA response for a recording site. This value was quantified by an adaptation index (AI) for all frequencies (D).