Action Observation and Synchronization

This paper conducts two meta-analyses comparing the effects of combined action observation and motor imagery (AOMI) to AO, MI, and control conditions on corticospinal excitability and movement outcomes.

The paper uses intracranial recordings to show that the insula encodes pain intensity from different stimuli with distinct spatial and temporal coding patterns.

The paper investigates motor cortex activation during reading of affirmative and negative action sentences, finding similar corticospinal excitability for both but increased inhibition at later latencies, supporting a two-step model of negation.

The paper investigates the neural correlates of conscious social perception using fMRI and observer reports, finding that social perception is subjective and influenced by internalizing traits.

This study compares brain-to-brain synchrony during live and technologically-assisted remote mother-child interactions, finding reduced synchrony in remote settings and implications for social brain development.

The paper investigates how the superior temporal sulcus encodes and retrieves social interaction memories using fMRI and machine learning during free recall of a movie.

This study investigates how live facial expressions compared to pre-recorded ones affect brain activity and connectivity during social interaction, finding enhanced mirror neuron system engagement and emotional contagion.

This study investigates how video-mediated interactions affect empathy for pain, finding reduced physiological responses but preserved affective empathy.

The paper investigates how neural responses to observed and felt sensations are mediated by shared compositional building blocks rather than mirror neurons.

This study examines how insula lesions affect cognitive and affective empathy in response to emotional valence and intensity using a naturalistic paradigm, finding specific deficits in negative, low-intensity affective empathy.

This study investigates how motion contributes to social interaction perception in the posterior temporal cortex using neuroimaging and behavioral data from 22 participants.

This study identifies an action-observation network in common marmosets using ultra-high field fMRI, showing overlap with human and macaque networks.

This study identifies a two-stage neural framework for biological motion processing, showing distinct contributions from dorsal and ventral brain regions.

The paper was withdrawn due to revised preprocessing, and the authors request it not be cited as a reference.

The paper shows that social-affective features, not visual or action features, best predict perceived similarity of observed actions in behavioral and neural experiments.

The paper introduces EEG movement tagging to objectively measure biological motion perception, showing distinct brain responses at different frequencies related to global and local processing.

This study uses fMRI to investigate how the brain encodes working memory of biological motion as self-associated versus other-associated, identifying specific brain regions involved in self-other distinction during movement processing.

The paper investigates whether posture-based and trajectory-based imitation are distinct mechanisms by measuring imitation accuracy after different intervening tasks.

This study examines how inter-brain EEG synchronization relates to coordination stability during anti-phase tapping tasks across different speeds.

The paper identifies two brain networks with position-tolerant action representations, showing distinct relationships with objective movement measures and subjective action judgments.

The paper examines neural responses to biological motion in neurotypical individuals, finding distinct associations with autistic and schizotypal traits through fMRI and synchronization analysis.

This study shows that interpersonal coordination occurs at a sub-movement level through synchronized speed breaks between interacting partners.

This study shows that inter-subject correlation occurs in neural, physiological, and behavioral signals during shared cognitive processing, but not in all signals, and is influenced by attentional state and information recall.

This study conducts a systematic review and meta-analysis of fNIRS hyperscanning studies on cooperation, finding significant inter-brain synchrony in prefrontal and temporoparietal regions.

This study shows that combining movement synchronization with complexity better predicts interpersonal liking than synchronization alone, suggesting that maintaining interest is critical for social bonding.

This study shows that individuals with higher autistic traits have reduced amygdala responses to imitation but increased mirror neuron system activity and connectivity, which may compensate for social deficits.

This study uses tACS to show that midfrontal theta activity enhances motor coordination in human-avatar interactions by improving synchronization and motor strategies.

The paper investigates how neural activity differs between socially interacting brains and how these differences evolve alongside shared activity patterns, proposing a computational mechanism to unify these observations.

The paper shows that high loneliness individuals have reduced movement synchronization ability and increased activation in the observation-execution system during synchronization.

The paper investigates neural dynamics during dyadic motor interactions, showing the monitoring system is more attuned to others' actions than self-actions.