Same action, different meaning: neural substrates of action semantic meaning

Aberbach-Goodman, Shahar; Buaron, Batel; Mudrik, Liad; Mukamel, Roy

doi:10.1093/cercor/bhab483

Cited by 6 publications

(3 citation statements)

References 63 publications

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“…Outside these regions, whole-brain analysis ( p < 0.05, corrected for family-wise error at the cluster level) revealed that activations in bilateral premotor cortex were sensitive to task identity. This is consistent with the successful encoding of semantic meaning of motor actions from associative motor cortex [17].…”

Section: Task-specific Activationssupporting

confidence: 85%

Re-evaluating frontopolar and temporoparietal contributions to detection and discrimination confidence

2023

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Previously, we identified a subset of regions where the relation between decision confidence and univariate functional magnetic resonance imaging (fMRI) activity was quadratic, with stronger activation for both high and low compared with intermediate levels of confidence. We further showed that, in a subset of these regions, this quadratic modulation appeared only for confidence in detection decisions about the presence or absence of a stimulus, and not for confidence in discrimination decisions about stimulus identity (Mazor et al. 2021). Here, in a pre-registered follow-up experiment, we sought to replicate our original findings and identify the origins of putative detection-specific confidence signals by introducing a novel asymmetric-discrimination condition. The new condition required discriminating two alternatives but was engineered such that the distribution of perceptual evidence was asymmetric, just as in yes/no detection. We successfully replicated the quadratic modulation of subjective confidence in prefrontal, parietal and temporal cortices. However, in contrast with our original report, this quadratic effect was similar in detection and discrimination responses, but stronger in the novel asymmetric-discrimination condition. We interpret our findings as weighing against the detection-specificity of confidence signatures and speculate about possible alternative origins of a quadratic modulation of decision confidence.

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Section: Task-specific Activationssupporting

confidence: 85%

Re-evaluating frontopolar and temporoparietal contributions to detection and discrimination confidence

2023

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“…In other words, these two processing systems may not be organized in a modular fashion in a situation where the intention-based prediction system is in charge. From a more general view, this perspective is in line with studies showing that context is highly relevant for modulations of early auditory processing (e.g., Dercksen et al, 2021); and, vice-versa, the execution of a simple action (e.g., a right button-press) depends on the specific context, for example, whether the button-press denotes a "yes" or a "no"-answer (Aberbach-Goodman et al, 2022).…”

Section: Strong Impact Of Action Intention On Mismatch Negativity Whe...supporting

confidence: 74%

Intention-based predictive information modulates auditory deviance processing

Widmann

Schröger²

2022

Front. Neurosci.

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The human brain is highly responsive to (deviant) sounds violating an auditory regularity. Respective brain responses are usually investigated in situations when the sounds were produced by the experimenter. Acknowledging that humans also actively produce sounds, the present event-related potential study tested for differences in the brain responses to deviants that were produced by the listeners by pressing one of two buttons. In one condition, deviants were unpredictable with respect to the button-sound association. In another condition, deviants were predictable with high validity yielding correctly predicted deviants and incorrectly predicted (mispredicted) deviants. Temporal principal component analysis revealed deviant-specific N1 enhancement, mismatch negativity (MMN) and P3a. N1 enhancements were highly similar for each deviant type, indicating that the underlying neural mechanism is not affected by intention-based expectation about the self-produced forthcoming sound. The MMN was abolished for predictable deviants, suggesting that the intention-based prediction for a deviant can overwrite the prediction derived from the auditory regularity (predicting a standard). The P3a was present for each deviant type but was largest for mispredicted deviants. It is argued that the processes underlying P3a not only evaluate the deviant with respect to the fact that it violates an auditory regularity but also with respect to the intended sensorial effect of an action. Overall, our results specify current theories of auditory predictive processing, as they reveal that intention-based predictions exert different effects on different deviance-specific brain responses.

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“…Apart from the salient action-to-sound transitions, the Markovian perspective reveals another aspect in action-sound-coupling paradigms when studying the lower left part of the transition matrices in Figure 7 that describes the study by Korka et al (2019) . Namely, there is not only a transition from button to sound, but also from sound to button ( Aberbach-Goodman et al, 2022 ). In the example given here, the transition probability from any of the two sound types (high or low pitch) to any of the two types of button presses (left or right) is assumed to be 0.5.…”

Section: Action-sound Coupling Paradigmsmentioning

confidence: 99%

Markov chains as a proxy for the predictive memory representations underlying mismatch negativity

Schröger,

Roeber,

Coy

2023

Front. Hum. Neurosci.

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Events not conforming to a regularity inherent to a sequence of events elicit prediction error signals of the brain such as the Mismatch Negativity (MMN) and impair behavioral task performance. Events conforming to a regularity lead to attenuation of brain activity such as stimulus-specific adaptation (SSA) and behavioral benefits. Such findings are usually explained by theories stating that the information processing system predicts the forthcoming event of the sequence via detected sequential regularities. A mathematical model that is widely used to describe, to analyze and to generate event sequences are Markov chains: They contain a set of possible events and a set of probabilities for transitions between these events (transition matrix) that allow to predict the next event on the basis of the current event and the transition probabilities. The accuracy of such a prediction depends on the distribution of the transition probabilities. We argue that Markov chains also have useful applications when studying cognitive brain functions. The transition matrix can be regarded as a proxy for generative memory representations that the brain uses to predict the next event. We assume that detected regularities in a sequence of events correspond to (a subset of) the entries in the transition matrix. We apply this idea to the Mismatch Negativity (MMN) research and examine three types of MMN paradigms: classical oddball paradigms emphasizing sound probabilities, between-sound regularity paradigms manipulating transition probabilities between adjacent sounds, and action-sound coupling paradigms in which sounds are associated with actions and their intended effects. We show that the Markovian view on MMN yields theoretically relevant insights into the brain processes underlying MMN and stimulates experimental designs to study the brain’s processing of event sequences.

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Same action, different meaning: neural substrates of action semantic meaning

Cited by 6 publications

References 63 publications

Re-evaluating frontopolar and temporoparietal contributions to detection and discrimination confidence

Re-evaluating frontopolar and temporoparietal contributions to detection and discrimination confidence

Intention-based predictive information modulates auditory deviance processing

Markov chains as a proxy for the predictive memory representations underlying mismatch negativity

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