Spectral tuning and after-effects in neural entrainment DOI Creative Commons
Maëlan Q. Menétrey, David Pascucci

Behavioral and Brain Functions, Journal Year: 2024, Volume and Issue: 20(1)

Published: Nov. 21, 2024

Neural entrainment has become a popular technique to non-invasively manipulate brain rhythms via external, periodic stimulation. However, there is still debate regarding its underlying mechanisms and effects on activity. Here, we used EEG recordings during visual paradigm assess characteristic changes in the spectral content of signals due entrainment. Our results demonstrate that not only increases synchrony between neural oscillations entraining stimulus but also elicits previously unreported tuning long-lasting after-effects. These findings offer compelling evidence for presence dedicated, flexible, adaptive entrainment, which may have key roles adjusting sensitivity dynamic range oscillators response environmental temporal structures.

Language: Английский

Efficacy of Rhythmic Photic Stimulation for Autonomic Nervous System Regulation in University Students DOI Creative Commons
Shang‐You Yang,

P-C Wang,

Chuan‐Mu Chen

et al.

Physiological Research, Journal Year: 2025, Volume and Issue: 1/2025, P. 149 - 160

Published: March 10, 2025

University students frequently encounter stress and anxiety, impacting their autonomic nervous system mental health. Rhythmic photic stimulation (RPS) at various frequencies is considered a potential intervention for anxiety depression, but its effectiveness not fully understood. This research aimed to assess the impact of RPS theta (6 Hz), alpha (10 beta (25 Hz) on regulation in university students, comparing effects between those with without depression symptoms. Conducted southern Taiwan university, this quasi-experimental study involved interventions specified frequencies, pre post assessments heartbeat, blood pressure, heart rate variability. Among 62 participants (average age 20.29±0.61), showed notable pressure reduction following theta-frequency compared other (p<0.05). A similar pattern was observed when non-depressed depressed after theta-RPS, individuals experiencing an increase sympathetic activity RPS, particularly frequency, can significantly influence system, suggesting reducing anxiety-related physiological markers students. Further verification larger longitudinal warranted.

Language: Английский

Citations

0
Communicative signals during joint attention promote neural processes of infants and caregivers DOI Creative Commons
Anna Bánki, Moritz Köster, Radoslaw M. Cichy

et al.

Developmental Cognitive Neuroscience, Journal Year: 2023, Volume and Issue: 65, P. 101321 - 101321

Published: Dec. 6, 2023

Communicative signals such as eye contact increase infants' brain activation to visual stimuli and promote joint attention. Our study assessed whether communicative during attention enhance infant-caregiver dyads' neural responses objects, their synchrony. To track mutual processes, we applied rhythmic stimulation (RVS), presenting images of objects 12-month-old infants mothers (n = 37 dyads), while recorded activity (i.e., steady-state evoked potentials, SSVEPs) with electroencephalography (EEG) hyperscanning. Within dyads, either communicatively showed the infant or watched without engagement. cues increased mothers' SSVEPs at central-occipital-parietal, central electrode sites, respectively. Infants significantly more gaze behaviour Dyadic synchrony (SSVEP amplitude envelope correlations, AECs) was not modulated by cues. Taken together, maternal in shape own processes. We show that cortical processing, thus play an essential role social learning. Future studies need elucidate effect on Finally, our introduces RVS dynamics contexts.

Language: Английский

Citations

10
Infants and adults neurally represent the perspective of others like their own perception DOI Creative Commons
Anna‐Lena Tebbe, Katrin Rothmaler, Moritz Köster

et al.

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

Published: Aug. 8, 2024

Abstract Preverbal infants already seem to consider the perspective of others, even when it differs from their own. Similarly, adults take others very quickly, in parallel other cognitively demanding tasks. This raises question how multiple perspectives are processed efficiently, and before higher cognitive capacities develop. To test whether others’ neurally represented, we presented 12-14-months-old with objects flickering at 4 Hz, which evoked neural oscillations exact same frequency. Remarkably, both adults, this highly specific signature visual object processing was also present view blocked only another observer saw object. These results provide strong evidence that process what see as if ourselves, revealing a mechanism for efficient taking, infancy.

Language: Английский

Citations

3
Cross-cultural differences in visual object and background processing in the infant brain DOI Creative Commons
Moritz Köster, Anna Bánki, Daiki Yamasaki

et al.

Imaging Neuroscience, Journal Year: 2023, Volume and Issue: 1, P. 1 - 11

Published: Nov. 20, 2023

Abstract Human visual cognition differs profoundly between cultures. A key finding is that processing tuned toward focal elements of a scene in Western cultures (US and Europe) the background Eastern (Asia). Although some evidence for cultural differences exists young children, to date, ontogenetic origins human have not been unveiled. This study explores early cross-cultural processing, by tracking neural signatures object versus electroencephalogram (EEG) 12-month-old infants, Vienna (Austria; culture; n = 35) Kyoto (Japan; an 36). Specifically, we separated presenting at different stimulation frequencies (5.67 8.5 Hz). Results show from on. We found infants showed higher signal, contrast Kyoto, who accentuated signal. emergence vision may be explained part social experiences: In separate interaction phase, mothers pointed out (versus background) more often than Kyoto. To conclude, with developmental neuroscience approach, reveal are already present first year after birth, which much earlier previously thought.

Language: Английский

Citations

3
Peak alpha frequency is linked to visual temporal attention in 6-month-olds DOI Creative Commons

Martina Arioli,

Matteo Mattersberger,

Stefanie Hoehl

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 15, 2024

Abstract The temporal resolution of adults’ visual attention has been linked to the frequency alpha-band oscillations in electroencephalogram (EEG) signal, with higher Peak Alpha Frequency (PAF) being associated better processing skills. However, relatively less is known about neural mechanisms underlying individual differences infancy. This study investigated role PAF early In a sample 6-month-old infants ( n = 62) we examined relationship between extracted from resting-state EEG, and saccadic latencies predictive cueing task where appearance reward was predicted by or lower two flickering objects. Results showed that shorter condition frequencies, speaking for involvement development. Additionally, found were generally faster orient trials both peripheral stimuli at roughly corresponding theta band. Our findings support theoretical accounts highlighting extend this framework

Language: Английский

Citations

0
Spectral tuning and after-effects in neural entrainment DOI Creative Commons
Maëlan Q. Menétrey, David Pascucci

Behavioral and Brain Functions, Journal Year: 2024, Volume and Issue: 20(1)

Published: Nov. 21, 2024

Neural entrainment has become a popular technique to non-invasively manipulate brain rhythms via external, periodic stimulation. However, there is still debate regarding its underlying mechanisms and effects on activity. Here, we used EEG recordings during visual paradigm assess characteristic changes in the spectral content of signals due entrainment. Our results demonstrate that not only increases synchrony between neural oscillations entraining stimulus but also elicits previously unreported tuning long-lasting after-effects. These findings offer compelling evidence for presence dedicated, flexible, adaptive entrainment, which may have key roles adjusting sensitivity dynamic range oscillators response environmental temporal structures.

Language: Английский

Citations

0