Repetition suppression and repetition enhancement underlie auditory memory-trace formation in the human brain: an MEG study

Cardiac interoceptive learning is modulated by emotional valence perceived from facial expressions

“…However, reduced VEP amplitude for this stimulus corresponds to previous reports suggesting repetition-suppression of early visual components as an indication of more efficient visual processing (Recasens et al , 2015), particularly in response to angry faces known to capture and hold attention (Koster et al , 2004). Crucially, we replicated the significant correlation between interoceptive and exteroceptive measures in response to repeated angry faces which suggests that reduced interoceptive processing coincided with a more efficient exteroceptive response to this stimulus (Marshall et al , 2017).…”

“…In support of this hypothesis, suppression of perceptual components is commonly interpreted as more efficient neural processing (Wiggs and Martin, 1998). Furthermore, VEP suppression occurs in an early time window commonly attributed to low-level perceptual processes (Recasens et al , 2015) while HEP suppression occurs at a later time which is generally associated with higher-order enhancement effects. We would further argue that it is not parsimonious to offer two conflicting accounts of HEP amplitude.…”

Repetition suppression and its contextual determinants in predictive coding

“…BOLD responses in scene-selective regions followed an inverted U-shape function of stimulus repetition, with the first five presentations of a novel stimulus showing gradual repetition enhancement and further presentations showing gradual repetition suppression. This suggests that while learning a new model of a stimulus, repetition leads to a gradual increase in the precision of perceptual predictions at higher levels in the hierarchy, consistent with the relatively late latency of repetition enhancement observed in MEG (Recasens et al., 2014). After the perceptual representation of a stimulus has been established, precision control can be deployed at lower levels in the sensory processing hierarchy, leading to (early-latency) repetition suppression.…”

Frontal Glutamate and γ-Aminobutyric Acid Levels and Their Associations With Mismatch Negativity and Digit Sequencing Task Performance in Schizophrenia

“…18 For MMN, besides the supratemporal auditory cortex as the primary source, the right inferior frontal, 10,11,19 left inferior frontal, 10,20 medial frontal and orbitofrontal, 21,22 and anterior cingulate 21-25 have been implicated as potential sources of MMN generation. Studies 21-26 of MMN source localization in schizophrenia implicate the anterior cingulate as the most consistent frontal location.…”