Topic: temporal frequencies

Presentation of counter-phasing visual stimuli generates a steady-state-visually-evoked-potential (SSVEP), which has been widely used in electroencephalogram (EEG) studies of attention. When two stimuli are presented at different temporal frequencies (TFs), EEG shows two peaks that are modulated by attention. However, when the stimuli are spatially overlapping, they also interact in complex ways. Specifically, previous studies using invasive recordings from V1 have shown that the simultaneous presentation of full-screen gratings at different TFs leads to more attenuation when the TFs are nearb