Post-interval potentials in temporal judgements

Özoğlu, Ezgi; Thomaschke, Roland

doi:10.1007/s00221-023-06568-y

Cited by 4 publications

(4 citation statements)

References 22 publications

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“…This view is further supported by the ndings in the time perception task that showed attenuated the magnitude of GFP compared to sham stimulation at time window 200 to 300 ms after the rst sound. This time window falls within the P300 ERPs which is hypothesized to support temporal processing 31,35 .…”

Section: Discussionmentioning

confidence: 90%

Right Frontal HD-tDCS Reveals Causal Involvement of Time perception Networks in Temporal Processing of Concepts

Johari

Tabari

Desai

2023

Preprint

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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 nouns duration judgment (EDur), object nouns size judgment (OSize), valence judgement of event (EVal) and object (OVal) nouns. In the time perception task, participants judged the durations of pure tones. Results showed that stimulation accelerated responses for time perception task and decreased the magnitude of global field power (GFP) compared to sham stimulation. Semantic task 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 and in the temporal cognition network, and shed light on the conceptual processing of time.

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Section: Discussionmentioning

confidence: 90%

Right Frontal HD-tDCS Reveals Causal Involvement of Time perception Networks in Temporal Processing of Concepts

Johari

Tabari

Desai

2023

Preprint

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“…Previous literature has shown significant differences in post-interval ERPs as a function of the perceived duration in human EEG. Specifically, when the presented stimulus is perceived as longer than the reference, a more pronounced positive potential around 200 ms (P200) has been found, while for shorter stimuli a more pronounced Late Positive Potential (LPP) and P300 have been found (Damsma et al, 2021; Kononowicz & Rijn, 2014; Kruijne et al, 2021; Lindbergh & Kieffaber, 2013; Özoğlu & Thomaschke, 2023; Tarantino et al, 2010). These potentials (P200, P300 and LPP) are thought to reflect comparison and decision processes (Kononowicz & Rijn, 2014; Lindbergh & Kieffaber, 2013).…”

Section: Discussionmentioning

confidence: 98%

“…However, it has been recently shown that time estimation is better reflected in post-interval potentials (i.e., evoked responses emerging after the offset of the time interval; Kononowicz & Penney, 2016;Kononowicz & Rijn, 2014). In this way, it has been shown that post-interval potentials in fronto-central electrodes differ significantly depending on the perceived time duration (Damsma et al, 2021;Kononowicz & Rijn, 2014;Kruijne et al, 2021;Lindbergh & Kieffaber, 2013;Özoğlu & Thomaschke, 2023;Tarantino et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Electroencephalography (EEG) is an ideal tool to investigate the neural correlates of time estimation in humans due to its high temporal resolution. For this purpose, previous studies have combined EEG with different interval timing tasks (Bueno & Cravo, 2021; Damsma et al, 2021; Duzcu, 2019; Lindbergh & Kieffaber, 2013; Ng et al, 2011; Özoğlu & Thomaschke, 2023; Pfeuty et al, 2005). Most of these tasks involve the presentation of visual or auditory stimuli to signal a to-be-timed interval, which has to be compared to a reference time interval or prototype.…”

Section: Introductionmentioning

confidence: 99%

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Common neural mechanisms supporting time judgements in humans and monkeys

Rodriguez-Larios,

Rassi,

Mendoza

et al. 2024

Preprint

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There has been an increasing interest in identifying the biological underpinnings of human time perception, for which purpose research in non-human primates (NHP) is common. Although previous work, based on behaviour, suggests that similar mechanisms support time perception across species, the neural correlates of time estimation in humans and NHP have not been directly compared. In this study, we assess whether brain evoked responses during a time categorization task are similar across species. Specifically, we assess putative differences in post-interval evoked potentials as a function of perceived duration in human EEG (N = 24) and local field potential (LFP) and spike recordings in pre-supplementary motor area (pre-SMA) of one monkey. Event-related potentials (ERPs) differed significantly after the presentation of the temporal interval between short and long perceived durations in both species, even when the objective duration of the stimuli was the same. Interestingly, the polarity of the reported ERPs was reversed for incorrect trials (i.e., the ERP of a long stimulus looked like the ERP of a short stimulus when a time categorization error was made). Hence, our results show that post-interval potentials reflect the perceived (rather than the objective) duration of the presented time interval in both NHP and humans. In addition, firing rates in monkey's pre-SMA also differed significantly between short and long perceived durations and were reversed in incorrect trials. Together, our results show that common neural mechanisms support time categorization in NHP and humans, thereby suggesting that NHP are a good model for investigating human time perception

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

Johari,

Tabari,

Desai

2023

Sci Rep

View full text Add to dashboard Cite

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.

show abstract

Post-interval potentials in temporal judgements

Cited by 4 publications

References 22 publications

Right Frontal HD-tDCS Reveals Causal Involvement of Time perception Networks in Temporal Processing of Concepts

Right Frontal HD-tDCS Reveals Causal Involvement of Time perception Networks in Temporal Processing of Concepts

Common neural mechanisms supporting time judgements in humans and monkeys

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

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