Fig. 4: Pre-stimulus beta power predicts criterion change and interacts with stimulus probability in the stable environment.
From: Pre-stimulus beta power mediates explicit and implicit perceptual biases in distinct cortical areas
Ai The probability for a detection response decreases with higher pre-stimulus beta power for both signal and noise trials in the stable environment (n = 43 participants). Bi The probability for a stimulus report decreases with higher pre-stimulus beta power for both signal and noise trials in the volatile environment (n = 39 participants). Aii The effect of the previous response depends on the stimulus probability condition in the stable environment (significant interaction). Bii Participants respond more often that they detect a stimulus after previous yes responses in both probability conditions (no significant interaction) in the volatile environment. Aiii In the stable environment, the previous response interacts with pre-stimulus beta power regarding its relationship with the probability of a yes response such that with a previous “no response” the probability of a “yes response” decreases while there is no effect after a previous yes response. Biii The probability for a yes response decreases with increasing beta power, independent of the previous response. Significance levels: ***p < 0.001, **p < 0.01, *p < 0.05, shaded areas and error bars show the 95% confidence interval.
