The time is “right:” Electrophysiology reveals right parietal electrode dominance in time perception

Benau, Erik M.; DeLoretta, Laura; Moelter, Stephen T.

doi:10.1016/j.bandc.2018.03.008

Cited by 12 publications

(7 citation statements)

References 46 publications

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“…Most likely, the difference between the speed of the subject in the motor response is more evident when the task has a greater mental load, as in DS, while when the task requires a free-choice answer, as in the case of the nDS, the performances of the groups are essentially equivalent. The correlation analysis between the CNV slopes and the RTs confirmed these results, demonstrating that the greater CNV slope, the lower the RT, indicating a superior performance in the go stimulus response [ 25 , 77 , 78 , 79 ].…”

Section: Discussionmentioning

confidence: 57%

The Effects of Directional and Non-Directional Stimuli during a Visuomotor Task and Their Correlation with Reaction Time: An ERP Study

Miraglia

Pappalettera

Ienno

et al. 2023

Sensors

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Different visual stimuli can capture and shift attention into different directions. Few studies have explored differences in brain response due to directional (DS) and non-directional visual stimuli (nDS). To explore the latter, event-related potentials (ERP) and contingent negative variation (CNV) during a visuomotor task were evaluated in 19 adults. To examine the relation between task performance and ERPs, the participants were divided into faster (F) and slower (S) groups based on their reaction times (RTs). Moreover, to reveal ERP modulation within the same subject, each recording from the single participants was subdivided into F and S trials based on the specific RT. ERP latencies were analysed between conditions ((DS, nDS); (F, S subjects); (F, S trials)). Correlation was analysed between CNV and RTs. Our results reveal that the ERPs’ late components are modulated differently by DS and nDS conditions in terms of amplitude and location. Differences in ERP amplitude, location and latency, were also found according to subjects’ performance, i.e., between F and S subjects and trials. In addition, results show that the CNV slope is modulated by the directionality of the stimulus and contributes to motor performance. A better understanding of brain dynamics through ERPs could be useful to explain brain states in healthy subjects and to support diagnoses and personalized rehabilitation in patients with neurological diseases.

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Section: Discussionmentioning

confidence: 57%

The Effects of Directional and Non-Directional Stimuli during a Visuomotor Task and Their Correlation with Reaction Time: An ERP Study

Miraglia

Pappalettera

Ienno

et al. 2023

Sensors

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“…Generally, representing certainty has been associated more with right than left frontoparietal network regions 36 . However, the frontoparietal areas in the right hemisphere in particular have been suggested to be important for duration discrimination 37 ; also other studies have noted the particular relationship between parietal areas in the right hemisphere and duration-discrimination [36][37][38][39][40] , also in brain-damaged patients 41,42 .…”

Section: Discussionmentioning

confidence: 96%

Glutamatergic modulation of auditory cortex connectivity with attentional brain networks in unpredictable perceptual environment

Kompus

Volehaugen

Craven

et al. 2020

Sci Rep

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In a stable environment the brain can minimize processing required for sensory input by forming a predictive model of the surrounding world and suppressing neural response to predicted stimuli. Unpredicted stimuli lead to a prediction error signal propagation through the perceptual network, and resulting adjustment to the predictive model. The inter-regional plasticity which enables the model-building and model-adjustment is hypothesized to be mediated via glutamatergic receptors. While pharmacological challenge studies with glutamate receptor ligands have demonstrated impact on prediction-error indices, it is not clear how inter-individual differences in the glutamate system affect the prediction-error processing in non-medicated state. In the present study we examined 20 healthy young subjects with resting-state proton MRS spectroscopy to characterize glutamate + glutamine (rs-Glx) levels in their Heschl’s gyrus (HG), and related this to HG functional connectivity during a roving auditory oddball protocol. No rs-Glx effects were found within the frontotemporal prediction-error network. Larger rs-Glx signal was related to stronger connectivity between HG and bilateral inferior parietal lobule during unpredictable auditory stimulation. We also found effects of rs-Glx on the coherence of default mode network and frontoparietal network during unpredictable auditory stimulation. Our results demonstrate the importance of Glx in modulating long-range connections and wider networks in the brain during perceptual inference.

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“…In the second study 17 , we found that N400 event-related potentials (ERPs) were significantly different when participants were asked to judge the duration of event nouns compared to the size judgement of object nouns. This effect was observed over right parietal electrodes, and is reported to be an EEG marker of time perception 18 . Based on these findings, we proposed that temporal features of concepts may be subserved by time perception networks.…”

Section: Introductionmentioning

confidence: 84%

Right frontal HD-tDCS reveals causal involvement of time perception networks in temporal processing of concepts

Johari,

Tabari,

Desai

2023

Sci Rep

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Evidence suggests that perceptual and action related features of concepts are grounded in the corresponding sensory-motor networks in the human brain. However, less is known about temporal features of event concepts (e.g., a lecture) and whether they are grounded in time perception networks. We examined this question by stimulating the right dorsolateral prefrontal cortex (rDLPFC)—a part of time perception network—using HD-tDCS and subsequently recording EEG while participants performed semantic and time perception tasks. Semantic tasks were composed of event noun duration judgment (EDur), object noun size judgement (OSize), event (EVal) and object noun valence judgement. In the time perception task, participants judged the durations of pure tones. Results showed that cathodal stimulation accelerated responses for time perception task and decreased the magnitude of global field power (GFP) compared to sham stimulation. Semantic tasks results revealed that cathodal, but not sham, stimulation significantly decreased GFP for EDur relative to OSize, and to EVal. These findings provide first causal evidence that temporal features of event words are grounded in the rDLPFC as part of the temporal cognition network and shed light on the conceptual processing of time.

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The time is “right:” Electrophysiology reveals right parietal electrode dominance in time perception

Cited by 12 publications

References 46 publications

The Effects of Directional and Non-Directional Stimuli during a Visuomotor Task and Their Correlation with Reaction Time: An ERP Study

The Effects of Directional and Non-Directional Stimuli during a Visuomotor Task and Their Correlation with Reaction Time: An ERP Study

Glutamatergic modulation of auditory cortex connectivity with attentional brain networks in unpredictable perceptual environment

Right frontal HD-tDCS reveals causal involvement of time perception networks in temporal processing of concepts

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