A Prefrontal Erp Involved in Decision Making During Visual Duration and Size Discrimination Tasks

Gontier, Emilie; Dantec, Christophe Le; Paul, Isabelle; Bernard, Christian; Lalonde, Robert; Rebaı̈, Mohamed

doi:10.1080/00207450601046798

Cited by 18 publications

(24 citation statements)

References 37 publications

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“…A similar MVPA analysis performed on the post-interval period showed that EEG activity in this period encoded mainly decision-related information. The time periods of this effect are similar to recent findings that suggest the existence of early potentials related to temporal processing, such as the N1P2 [Kononowicz and van Rijn, 2014] and to several studies that have suggested the existence of a Late Positive Component of timing (LPCt) [Bannier et al, 2019;Gontier et al, 2008;Lindbergh and Kieffaber, 2013;Paul et al, 2003Paul et al, , 2011Wiener and Thompson, 2015]. However, although several authors have claimed to find an LPCt, this component has been identified relative to different temporal markers and with different topographies.…”

Section: Discussionsupporting

confidence: 87%

“…For example, in the study from Wiener and Thompson [2015], the LPCt was measured as the positive potential evoked at frontocentral electrodes after the response was made by the participant and had higher amplitudes for shorter intervals. In other studies, such as [Gontier et al, 2008;Paul et al, 2003Paul et al, , 2011, the LPCt was measured at prefrontal electrodes after the interval offset and were higher for longer intervals. Recently, two studies have reported a positive post-offset potential at centroparietal electrodes, both with higher amplitudes for shorter intervals [Bannier et al, 2019;Lindbergh and Kieffaber, 2013].…”

Section: Discussionmentioning

confidence: 83%

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Dissociating decisional and temporal information in interval categorisation

Vc¹,

Sato²,

Ms³

et al. 2019

Preprint

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Interval timing is fundamental for humans and non-human animals to interact with their environment. Several studies that investigate temporal processing combine behavioural tasks with neurophysiological methods, such as electrophysiological recordings (EEG). However, in the majority of these studies, it is hard to dissociate whether EEG activity reflects temporal or decisional information. In the present study, we investigated how time and decision is encoded in the EEG signal while human participants performed a temporal categorisation task with two different temporal references. Using a combination of evoked potentials and multivariate pattern analysis, we show that: (1) During the interval to-be-timed, both temporal and decisional information are encoded;(2) Activity evoked by the end of the interval encodes almost exclusively decisional information. These results suggest that decisional aspects of the task better explain EEG activity commonly related to temporal processing. The interplay between the encoding of time and decision is consistent with recent proposals that approximate temporal processing with decisional models.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 83%

Dissociating decisional and temporal information in interval categorisation

Vc¹,

Sato²,

Ms³

et al. 2019

Preprint

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“…To address this limitation, some investigations have compared temporal discrimination tasks with discrimination of other attributes, such as color (Coull, Vidal, Nazarian & Macar, 2004;Kulashekhar, Pekkola, Palva & Palva, 2016), size (Gontier, Dantec, Paul, Bernard, Lalonde & Rebai, 2008), space (Coull, Charras, Donadieu, Droit-Volet, & Vidal, 2015) and numerosity (Schlichting, de Jong & van Rijn, 2020)). For example, Coull and colleagues (2004), using functional Magnetic Resonance Imaging, found a higher activation of areas such as the pre-SMA and a network of other cortical and striatal areas when participants paid more attention to the duration than the color of a stimulus.…”

Section: Introductionmentioning

confidence: 99%

Post-interval EEG activity is related to task-goals in temporal discrimination

Bueno

Cravo

2020

Preprint

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Studies investigating the neural mechanisms of time perception often measure brain activity while participants perform a temporal task. However, several of these studies are based exclusively on tasks in which time is relevant, making it hard to dissociate activity related to temporal processing from other types of temporally structured brain patterns. In the present study, human participants performed a temporal or color discrimination task of visual stimuli. In different blocks, participants were informed which magnitude they would have to judge before or after presenting the two stimuli (S1 and S2). Our behavioral results showed, as expected, that performance was better when participants knew beforehand which magnitude they would judge. Electrophysiological data (EEG) was analyzed using Linear Discriminant Contrasts (LDC) and a Representational Similarity Analysis (RSA) approach to investigate whether and when information about time and color was encoded. During the presentation of S1, we did not find consistent differences in EEG activity as a function of the task. On the other hand, during S2, we found that temporal and color information was encoded in a task-relevant manner. Taken together, our results suggest that task goals strongly modulate the encoding of temporal information in EEG activity.

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“…The generator of the CNV in the task of duration discrimination is mostly considered to be the prefrontal cortex (Pouthas, 2003; Macar and Vidal, 2004). Another ERP component, the P300 (Picton, 1992), is also related to selective attention in temporal tasks (Macar and Vidal, 2003; Gontier et al, 2007, 2008, 2009; Le Dantec et al, 2007; Mitsudo et al, 2009). The parietal cortex is one of the critical sources of the P300 in the context of attention and working memory (Picton, 1992; Horn et al, 2003; Linden, 2005), and the relationships between the P300 and the parietal cortex were also discussed in the timing literature (Gontier et al, 2007, 2009; Mitsudo et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

An Electroencephalographic Investigation of the Filled-Duration Illusion

Mitsudo¹,

Gagnon²,

Takeichi³

et al. 2012

Front. Integr. Neurosci.

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The study investigated how the brain activity changed when participants were engaged in a temporal production task known as the “filled-duration illusion.” Twelve right-handed participants were asked to memorize and reproduce the duration of time intervals (600 or 800 ms) bounded by two flashes. Random trials contained auditory stimuli in the form of three 20 ms sounds between the flashes. In one session, the participants were asked to ignore the presence of the sounds, and in the other, they were instructed to pay attention to sounds. The behavioral results showed that duration reproduction was clearly affected by the presence of the sounds and the duration of time intervals. The filled-duration illusion occurred when there were sounds; the participants overestimated the interval in the 600-ms interval condition with sounds. On the other hand, the participants underestimated the 800-ms interval condition without sounds. During the presentation of the interval to be encoded, the contingent negative variation (CNV) appeared around the prefrontal scalp site, and P300 appeared around the parieto-central scalp site. The CNV grew larger when the intervals contained the sounds, whereas the P300 grew larger when the intervals were 800 ms and did not contain the sounds. During the reproduction of the interval to be presented, the Bereitschaftspotential (BP) appeared over the fronto-central scalp site from 1000 ms before the participants’ response. The BP could refer to the decision making process associated with the duration reproduction. The occurrence of three event-related potentials (ERPs), the P300, CNV, and BP, suggests that the fronto-parietal area, together with supplementary motor area (SMA), is associated with timing and time perception, and magnitude of these potentials is modulted by the “filled-duration illusion”.

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A Prefrontal Erp Involved in Decision Making During Visual Duration and Size Discrimination Tasks

Cited by 18 publications

References 37 publications

Dissociating decisional and temporal information in interval categorisation

Dissociating decisional and temporal information in interval categorisation

Post-interval EEG activity is related to task-goals in temporal discrimination

An Electroencephalographic Investigation of the Filled-Duration Illusion

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