Peak Frequency Peak frequency is a statistic that tells us what the frequency within a band was that had the highest amplitude.  For example, in the alpha band (8-12 Hz), 10 Hz should be highest in most adults.  Values rising above that may result in problems experienced by the client, depending on where we see this, and peaks below 10 can often result in cognitive difficulties, word-finding problems, etc.  The TQ8 shows you peaks in alpha, beta and the overall […]