Violation of identity-specific action-effect prediction increases pupil size and attenuates auditory event-related potentials at P2 latencies when action-effects are behaviorally relevant DOI Creative Commons
E Lindner, Andrea Desantis, Felicia Pei-Hsin Cheng

et al.

NeuroImage, Journal Year: 2024, Volume and Issue: 297, P. 120717 - 120717

Published: July 5, 2024

Self-initiated sensory action effects are widely assumed to lead less intense perception and reduced neural responses compared externally triggered stimuli (sensory attenuation). However, it is unclear if attenuation occurs in all cases of action-effect prediction. Specifically, when predicted action-effects relevant determine follow-up actions could be detrimental. We quantified auditory event-related potentials (ERP) electroencephalography (EEG) human participants created two-sound sequences by pressing two keys on a keyboard associated with different pitch, giving rise identity-specific prediction after the first keypress. The sound corresponded (congruent) or violated (incongruent) pitch was either for selection second keypress correctly complete sequence (Relevance) irrelevant (Control Movement), there only one (Baseline). found diminished P2-timed ERP component incongruent congruent trials subsequent action. This effect due an reduction sounds at P2 latencies correlated negatively modulations pupil dilation. Contrary our expectation, we did not observe N1 modulation congruency any condition. Attenuation seems absent effects, while ERPs as well size sensitive predictability, least next Incongruent thereby take special place seem subject attentional error processing.

Language: Английский

Temporal action-effect prediction does not affect perceived loudness, but the sense of agency DOI Creative Commons
E Lindner,

Tobias Schöberl,

Andrea Desantis

et al.

Consciousness and Cognition, Journal Year: 2025, Volume and Issue: 130, P. 103837 - 103837

Published: March 8, 2025

Motor theories propose that predicting sensory consequences of one's own actions reduces perception and neural processing these action-effects, a phenomenon known as attenuation, considered an implicit measure agency. However, recent findings question the link between action-effect prediction attenuation. This study directly examined temporal auditory alongside assessing self-reported Participants experienced self-initiated effects with varying latencies compared their loudness to reference tone, whose intensities were modulated discrimination. Results showed no change in perceived across delays, while agency ratings decreased longer delays. A second experiment controlled for hazard rate effects, confirming initial findings. Our results contrast previous behavioral from tactile modality conclusions drawn electroencephalography. We suggest reconsidering attenuation necessary consequence

Language: Английский

Citations

0
Adults on the autism spectrum differ from neurotypical peers when self-generating but not passively-experiencing somatosensation: a high-density electrophysiological (EEG) mapping and virtual reality study DOI Creative Commons
Emily L. Isenstein, Edward G. Freedman,

Grace Rico

et al.

NeuroImage, Journal Year: 2025, Volume and Issue: 311, P. 121215 - 121215

Published: April 12, 2025

Language: Английский

Citations

0
Designing Vibrotactile Feedback for rendering Material and Force Experiences DOI
Nihar Sabnis

Published: April 23, 2025

Language: Английский

Citations

0
Motion-Coupled Asymmetric Vibration for Pseudo Force Rendering in Virtual Reality DOI
Nihar Sabnis,

Mark Roche,

Dennis Wittchen

et al.

Published: April 24, 2025

Language: Английский

Citations

0
Tactile contribution extends beyond exteroception during spatially guided finger movements DOI Creative Commons
Maria Evangelia Vlachou,

Juliette Legros,

Cécile Sellin

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 29, 2025

Language: Английский

Citations

0
Divisive attenuation based on noisy sensorimotor predictions accounts for excess variability in self-touch DOI Creative Commons
Nicola Valè, Ivan Tomić,

Zahara Gironés

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 24, 2024

Abstract When one part of the body exerts force on another, resulting tactile sensation is perceived as weaker than when same applied by an external agent. This phenomenon has been studied using a matching task, in which observers are first exposed to passive finger and then instructed reproduce directly pressing with other hand: healthy participants consistently exceed original level. However, this exaggeration target not observed if observer generates indirectly, adjusting joystick or slider that controls output motor. Here we present detailed computational account processes leading forces incorporating attenuation sensory signals based motor predictions. The model elucidates previously unappreciated contributions multiple sources noise, including memory determining output. We show predictive component can be isolated quantifying discrepancy between direct indirect self-generated forces, rather versus externally generated forces. Our makes prediction attenuated sensations will display greater trial-to-trial variability unattenuated ones, because they incorporate additional noise from prediction. Quantitative fitting data close 500 human confirmed excess provided evidence for divisive subtractive mechanism attenuation, while highlighting its nature.

Language: Английский

Citations

3
Perceptual Sensitivity to Tactile Stimuli Is Enhanced When One Is Aware That Tactile Stimulus Intensity Is Self-Controlled DOI Creative Commons

Hitoshi Oda,

Shiho Fukuda,

Hiroshi Kunimura

et al.

Brain Sciences, Journal Year: 2025, Volume and Issue: 15(3), P. 231 - 231

Published: Feb. 22, 2025

Background and objectives: This study aimed to investigate whether perceptual sensitivity tactile stimulus is affected by awareness of who controls the intensity. Methods: Thirteen healthy participants took part in this study. A participant held a dial an experimenter other dial. One was control intensity while (dummy dial) inactive. The participant’s index finger providing each 1 s increased or someone else with without viewing controlling Results conclusions: at threshold, when controlled participant, significantly lower compared else, regardless visual availability. indicates that self-control enhances sensitivity. electrodermal level immediately preceding threshold it eyes closed. levels before stimulus, triggered another person, were higher These findings suggest cognitive stress greater timing initial perception difficult predict.

Language: Английский

Citations

0
Cross-Modal Interactions and Movement-Related Tactile Gating: The Role of Vision DOI Creative Commons
María Casado-Palacios, Alessia Tonelli, Claudio Campus

et al.

Brain Sciences, Journal Year: 2025, Volume and Issue: 15(3), P. 288 - 288

Published: March 8, 2025

Background: When engaging with the environment, multisensory cues interact and are integrated to create a coherent representation of world around us, process that has been suggested be affected by lack visual feedback in blind individuals. In addition, presence voluntary movement can responsible for suppressing somatosensory information processed cortex, which might lead worse encoding tactile information. Objectives: this work, we aim explore how cross-modal interaction active movements role vision process. Methods: To end, measured precision 18 individuals age-matched sighted controls velocity discrimination task. The participants were instructed detect faster stimulus between sequence two both passive touch conditions. sensory stimulation could either just or audio–tactile, where non-informative sound co-occurred stimulation. measure was obtained computing noticeable difference (JND) each participant. Results: results show audio–tactile condition group (p = 0.046) but not one 0.513). For participants, only itself had an effect. Conclusions: individuals, noise from made them vulnerable auditory interference. However, exhibited less interaction, experiencing detrimental effect movement. Our work should considered when developing next-generation haptic devices.

Language: Английский

Citations

0
Considerations for tactile perceptual assessments: impact of arm dominance, nerve, location, and sex in young and older adults DOI Creative Commons

Eric Tirrell,

Nahid Kalantaryardebily,

Anna C. Feldbush

et al.

Experimental Brain Research, Journal Year: 2025, Volume and Issue: 243(4)

Published: March 15, 2025

Abstract Purpose Intact tactile perception is essential to successfully interact with objects. While examinations exist for capturing impairments, recent investigations underscore that these remain insufficient, particularly adults following a neurological injury. To inform the design of improved assessments, this study comprehensively captures factors can influence in young and older who are neurologically intact. Methods We examined impact arm dominance (dominant/non-dominant), nerve (median/ulnar/radial), location (hand/elbow), sex (male/female) on thresholds at which electrotactile stimuli could be consciously detected when applied skin 20 14 right-arm dominant participants. Results Significant differences depending were not found (p = 0.6781) or 0.2786) adults. Yet, tested did yield differing < 0.0001) In adults, less hand than elbow 0.0031). average threshold was greater elbow. Importantly, increased age extent 0.0001). Thresholds males females 0.0004), whereas no significant observed 0.2560). Conclusion This work highlights importance addressing numerous their interactions assessing (e.g., dominance, nerve, location, sex, age). Findings assessments more accurately capture why impairments arise, including

Language: Английский

Citations

0
Costs and benefits of temporal expectations on somatosensory perception and decision-making DOI Creative Commons
Zhiqiang Xiong, Xavier Job, Konstantina Kilteni

et al.

Cognition, Journal Year: 2025, Volume and Issue: 261, P. 106146 - 106146

Published: April 14, 2025

Our perception is shaped by prior expectations, including those about the timing of our sensations. These temporal expectations can be formed recognizing patterns in onset sensory inputs. However, somatosensory domain, it remains unclear how these impact speed and accuracy judgments, as previous research has yielded mixed results. Here, participants used auditory tones to anticipate forces applied their fingers discriminated intensity compared a reference force. Experiment 1 showed that had worse discrimination sensitivity higher thresholds for expected versus unexpected forces. 2 replicated extended costs include perceptual accuracy, even when comparing expectation-free forces, further revealed reaction time benefits. Drift-diffusion modelling suggested speeded non-decisional processes while simultaneously slowing evidence accumulation. findings demonstrate both benefits decision-making.

Language: Английский

Citations

0