Steady state evoked potential (SSEP) responses in the primary and secondary somatosensory cortices of anesthetized cats: Nonlinearity characterized by harmonic and intermodulation frequencies
Fig 7
Exemplar nontagged frequencies responses between 50-150Hz modulated by F2 = 200Hz vibratory amplitude.
(A) Exemplar nontagged responses (VELogP) between 50-150Hz in bipolar channel 102 in S2 (Session 2–2). Note that the top left panel, which corresponds to the no- vibration condition, gives a flat line because VELogP is defined as the deviation of logPower from mean logPower of no vibration condition. It still has some variance across trials, shown as standard deviation (grey shading). (B) Spatial mapping of high gamma power (HGP) in S2 (Session 2–2). The location of bipolar channel 102 is located in the 8x8 array by a blue diamond. Color encodes the mean nontagged HGP in dB (our HGP measure, see Methods).