Mismatch negativity (MMN) is an event-related potential component automatically elicited by violations of sensory predictions and is widely interpreted, within the Predictive Processing framework, as a neural correlate of prediction error. Disruptions in prediction error signaling have been proposed as a potential mechanism underlying the diverse cognitive and perceptual profiles observed in autism and schizoph...
Heartbeat-evoked potentials (HEP) have been shown to be modulated by attentional focus (cardiac vs. exteroceptive attention), suggesting that HEP are a neural correlate of interoceptive prediction errors. However, this effect has not been consistently replicated, and differences in cognitive effort when contrasting interoceptive vs. exteroceptive attention may be a confounding factor. We devised a modified Hear...