Time Interaction With Two Spatial Dimensions: From Left/Right to Near/Far

Candini, Michela; D'Angelo, Mariano; Frassinetti, Francesca

doi:10.3389/fnhum.2021.796799

Cited by 8 publications

(4 citation statements)

References 83 publications

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“…To explore how participants performed the timeestimation task, we conducted a one-way ANOVA on the mean reproduced times with intervals (1,600, 1,800, 2,000, 2,200, or 2,400 ms) as within-subjects factors. As expected, there was a main effect of time interval, F( 4 the intervals differed between themselves (p < .01 for all comparisons), demonstrating that participants were accurate at discriminating between different intervals, which is consistent with findings of previous studies (Candini et al, 2022;Frassinetti et al, 2009;Magnani et al, 2013).…”

Section: Resultssupporting

confidence: 90%

“…As expected, there was a main effect of time interval, F (4, 116) = 69.999, p < .0001, η p 2 = .707; participants’ time estimates increased as a function of the time intervals. Crucially, Bonferroni-Holm correction revealed that all the intervals differed between themselves ( p < .01 for all comparisons), demonstrating that participants were accurate at discriminating between different intervals, which is consistent with findings of previous studies (Candini et al, 2022; Frassinetti et al, 2009; Magnani et al, 2013).…”

Section: Resultssupporting

confidence: 90%

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The Role of Beta Oscillations in Mental Time Travel

2023

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The brain processes short-interval timing but also allows people to project themselves into the past and the future (i.e., mental time travel [MTT]). Beta oscillations index seconds-long-interval timing (i.e., higher beta power is associated with longer durations). Here, we used parietal transcranial alternating current stimulation (tACS) to investigate whether MTT is also supported by parietal beta oscillations and to test the link between MTT and short intervals. Thirty adults performed a novel MTT task while receiving beta and alpha tACS, in addition to no stimulation. Beta tACS corresponded to a temporal underestimation in past but not in future MTT. Furthermore, participants who overestimated seconds-long intervals also overestimated temporal distances in the past-projection MTT condition and showed a stronger effect of beta tACS. These data provide a unique window into temporal perception, showing how beta oscillations may be a common mechanism for short intervals and MTT.

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Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 90%

The Role of Beta Oscillations in Mental Time Travel

2023

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“…We interpreted the improvement toward the Past as a selective effect of the leftward shift of spatial attention induced by PA. This evidence is consistent with the well-known spatial representation of time (Anelli et al, 2015, 2016b; Bonato et al, 2012; Candini et al, 2022; Magnani et al, 2014, 2021). Further support for the interpretation of visuospatial modulations of PA on MTT comes from the finding that exposure to neutral lenses did not change participants’ performance (Control Experiment).…”

Section: Discussionsupporting

confidence: 90%

“…This article is intended solely for the personal use of the individual user and is not to be disseminated broadly. PRISM EFFECTS ON MENTAL TIME TRAVEL NETWORK spatial representation of time (Anelli et al, 2015(Anelli et al, , 2016bBonato et al, 2012;Candini et al, 2022;Magnani et al, 2014Magnani et al, , 2021. Further support for the interpretation of visuospatial modulations of PA on MTT comes from the finding that exposure to neutral lenses did not change participants' performance (Control Experiment).…”

Section: Discussionmentioning

confidence: 96%

Spatial attention modulation of the brain network involved in mental time travel.

Casadio,

Patané,

Ballotta

et al. 2024

Neuropsychology

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Objectives: The ability to mental time travel (MTT) consists in moving along a cognitive and spatially oriented representation of time, that is, an ideal mental time line, where past and future events are, respectively, located on the left and on the right portion of such a line. A shift of spatial attention by prismatic adaptation (PA) influences this spatial coding of time, thus affecting MTT. Here, we investigated the neural correlates of such a spatial modulation on MTT in a functional Magnetic Resonance Imaging protocol. Method: To study MTT ability, participants were asked to indicate if a series of events took place before or after (Self-Reference component) an imagined self-location in time (Past, Present or Future; Self-Projection component), where they had to project themselves. The MTT task was performed before and after PA inducing a leftward shift of spatial attention, which is supposed to move toward the left portion of mental time line (MTL), where Past is represented. Results: Following PA, we observed a facilitation in responding to past as compared to future events when participants projected themselves to the Past projection. As a functional counterpart of this behavioral finding, we propose a model of the brain activity modulations following the PA effects on MTT. Conclusions: As a result of the shift of spatial attention toward the left, the facilitation in having access to past events is associated with the inhibition of superior frontal gyrus in the left hemisphere, whereas the facilitation in projecting toward the Past may result from the activity modulation in right and left inferior parietal lobule.

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Effects of the perceived temporal distance of events on mental time travel and on its underlying brain circuits

Casadio,

Patané,

Candini

et al. 2024

Exp Brain Res

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Mental Time Travel (MTT) allows us to remember past events and imagine future ones. According to previous literature, the Temporal Distance of events affects MTT: our ability to order events worsens for close, compared to far, events. However, those studies established distances a-priori, albeit the way we perceive events’ temporal distance may subjectively differ from their objective distance. Thus, in the current study, we aimed to investigate the effects of Perceived Temporal Distance (PTD) on the MTT ability and the brain areas mediating this process. Thirty-three healthy volunteers took part in an fMRI MTT task. Participants were asked to project themselves into the past, present, or future, and to judge a series of events as relative-past or relative-future, in relation to the adopted time location. Outside the scanner, participants provided PTD estimates for each stimulus of the MTT task. Participants’ performance and functional activity were analyzed as a function of these estimations. At the behavioural level, PTD predicts the modulation of the performance for relative-past and relative-future. Bilateral angular gyrus, retrosplenial cortex, temporo-parietal region and medial, middle and superior frontal gyri mediate the PTD effect. In addition to these areas, the closer the relative-future events are perceived, the higher the involvement of left parahippocampal and lingual gyri and right cerebellum. Thus, perceived proximity of events activates frontal and posterior parietal areas, which therefore might mediate the processing of PTD in the cognitive spatial representation of time. Future proximity also activates cerebellum and medial temporal areas, known to be involved in imaginative and constructive cognitive functions.

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Time Interaction With Two Spatial Dimensions: From Left/Right to Near/Far

Cited by 8 publications

References 83 publications

The Role of Beta Oscillations in Mental Time Travel

The Role of Beta Oscillations in Mental Time Travel

Spatial attention modulation of the brain network involved in mental time travel.

Effects of the perceived temporal distance of events on mental time travel and on its underlying brain circuits

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