Fig. 1 | Scientific Reports

Fig. 1

From: Aperiodic spectral slope tracks the effects of brain state on saliency responses in the human auditory cortex

Fig. 1

Auditory Oddball Paradigm and Electrode Placements. (a) The auditory oddball paradigm consisted of a sequence of pure sine wave tones of a given frequency (standard condition) randomly interleaved with a tone of a different frequency 10–20% of the time (oddball condition). Tones were placed 1.00–1.25 s apart, and oddball trials were pseudo-randomly varied between 6–9 s apart. Tones (1 kHz, 2 kHz) were counterbalanced across test blocks. LFP activity in pSTG and pupil diameter size were collected during task playback. (b) A total of 73 electrodes were identified in the pSTG regions of the auditory cortex and association areas.

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