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S Z Maia V, Silva CM, de Paula Oliveira I, da Silva Oliveira VR, Dale CS, Baptista AF, Caetano MS. Time perception and pain: Can a temporal illusion reduce the intensity of pain? Learn Behav 2023; 51:321-331. [PMID: 36840910 DOI: 10.3758/s13420-023-00575-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2023] [Indexed: 02/26/2023]
Abstract
It is commonly known-and previous studies have indicated-that time appears to last longer during unpleasant situations. This study examined whether a reciprocal statement can be made-that is, whether changes in the perception of time can influence our judgment (or rating) of a negative event. We used a temporal illusion method (Pomares et al. Pain 152, 230-234, 2011) to induce distortions in the perception of time. Two stimuli were presented for a constant time: a full clock, which stayed on the screen until its clock hand completed a full rotation (360°); and a short clock, in which the clock hand moved just three-quarters of the way (270°), thus suggesting a reduced interval duration. However, both stimuli were shown for the same amount of time. We specifically investigated (a) whether we could induce a temporal illusion with this simple visual manipulation, and (b) whether this illusion could change participants' ratings of a painful stimulus. In Experiment I (n = 22), to answer (a) above, participants were asked to reproduce the duration in which the different clocks were presented. In Experiment II (n = 30), a painful thermal stimulation was applied on participants' hands while the clocks were shown. Participants were asked to rate the perceived intensity of their pain, and to reproduce its duration. Results showed that, for both experiments, participants reproduced a longer interval after watching the full clock compared with the short clock, confirming that the clock manipulation was able to induce a temporal illusion. Furthermore, the second experiment showed that participants rated the thermal stimuli as less painful when delivered with the short clock than with the full clock. These findings suggest that temporal distortions can modulate the experience of pain.
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Affiliation(s)
- Vanessa S Z Maia
- Center for Mathematics, Computing and Cognition, Federal University of ABC (UFABC), São Bernardo do Campo, Brazil.
| | - Catarina Movio Silva
- Center for Mathematics, Computing and Cognition, Federal University of ABC (UFABC), São Bernardo do Campo, Brazil
| | - Inaeh de Paula Oliveira
- Department of Anatomy, Laboratory of Neuromodulation and Experimental Pain, University of São Paulo, São Paulo, Brazil
| | | | - Camila Squarzoni Dale
- Department of Anatomy, Laboratory of Neuromodulation and Experimental Pain, University of São Paulo, São Paulo, Brazil
| | - Abrahão Fontes Baptista
- Center for Mathematics, Computing and Cognition, Federal University of ABC (UFABC), São Bernardo do Campo, Brazil
- Laboratory of Medical Investigations 54 (LIM-54), Hospital das Clínicas FMUSP, São Paulo, Brazil
| | - Marcelo S Caetano
- Center for Mathematics, Computing and Cognition, Federal University of ABC (UFABC), São Bernardo do Campo, Brazil
- The National Institute of Science and Technology on Behavior, Cognition, and Teaching (INCT-ECCE), São Paulo, SP, Brazil
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Iconaru EI, Ciucurel MM, Tudor M, Ciucurel C. Nonlinear Dynamics of Reaction Time and Time Estimation during Repetitive Test. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:1818. [PMID: 35162841 PMCID: PMC8835110 DOI: 10.3390/ijerph19031818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/29/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022]
Abstract
(1) Background: In this research, we aimed to investigate a computational model of repetitive reaction time (RT) and virtual reaction time (VRT) testing. (2) Methods: The study involved 180 subjects (50 men, 130 women, mean age 31.61 ± 13.56 years). The data were statistically analyzed through the coefficient of variation (CV) and the Poincaré plot indicators. (3) Results: We obtained an excellent level of reliability for both sessions of testing and we put into evidence a relationship of association of the RT and VRT with the subjects' age, which was more pregnant for RT (p < 0.05). For both RT and VRT data series, we determined a consistent closer association between CV and the Poincaré plot descriptors SD1, SD2 (SD-standard deviation), and the area of the fitting ellipse (AFE) (p < 0.01). We reported an underestimation of the time interval of 2 s during the VRT session of testing, with an average value of CV of VRT, the equivalent of the Weber fraction, of 15.21 ± 8.82%. (4) Conclusions: The present study provides novel evidence that linear and nonlinear analysis of RT and VRT variability during serial testing bring complementary insights to the understanding of complex neurocognitive processes implied in the task execution.
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Affiliation(s)
- Elena Ioana Iconaru
- Department of Medical Assistance and Physical Therapy, University of Pitesti, 110040 Pitesti, Romania; (M.T.); (C.C.)
| | - Manuela Mihaela Ciucurel
- Department of Psychology, Communication Sciences and Social Assistance, University of Pitesti, 110040 Pitesti, Romania;
| | - Mariana Tudor
- Department of Medical Assistance and Physical Therapy, University of Pitesti, 110040 Pitesti, Romania; (M.T.); (C.C.)
| | - Constantin Ciucurel
- Department of Medical Assistance and Physical Therapy, University of Pitesti, 110040 Pitesti, Romania; (M.T.); (C.C.)
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Relaxing and stimulating effects of odors on time perception and their modulation by expectancy. Atten Percept Psychophys 2020; 83:448-462. [PMID: 33159286 DOI: 10.3758/s13414-020-02182-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2020] [Indexed: 11/08/2022]
Abstract
Although several studies have reported relaxing and stimulating effects of odors on physiology and behavior, little is known about their underlying mechanisms. It has been proposed that participant expectancy could explain these activation effects. Since emotional stimuli are known to modulate time perception, here we used the temporal bisection task to determine whether odors have objective relaxing and stimulating effects by respectively slowing down or speeding up the internal clock and whether prior expectancy could alter these effects. In Experiment 1, 118 participants were presented either with a strawberry odor or an odorless blank. In Experiment 2, 132 participants were presented either with a lemon odor or an odorless blank. In both experiments, expectancy was manipulated using suggestion (verbal instructions). The stimulus was either described as relaxing or stimulating, or was not described. In the absence of prior suggestion, findings showed that, compared to participants presented with an odorless blank, participants presented with the strawberry odor underestimated sound durations (i.e., a relaxing effect) whereas participants presented with the lemon odor overestimated them (i.e., a stimulating effect). These results confirm that pleasant odors can have objective relaxing and stimulating effects by themselves, which are better explained by arousal-based mechanisms rather than attentional distraction. Furthermore, in both experiments, incongruent suggestions undid the effects of both odors without reversing them completely (i.e., strawberry did not become stimulating even if participants were told so). Both these bottom-up and top-down influences should be considered when investigating the emotional impact of odors on human behavior.
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Mioni G, Grondin S, Stablum F. Do I dislike what you dislike? Investigating the effect of disgust on time processing. PSYCHOLOGICAL RESEARCH 2020; 85:2742-2754. [PMID: 32980894 DOI: 10.1007/s00426-020-01425-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 09/16/2020] [Indexed: 12/28/2022]
Abstract
Time perception can be distorted by emotional stimuli. The present study aims to investigate the effect of disgust on time perception in young adults. Here, we report two experiments in which a time bisection task was used with intervals lasting 400 ms (short standard) to 1600 ms (long standard). In Experiment 1, temporal intervals were marked by neutral images or images from food (rotten, joyful), and facial (disgust, happy) categories. In Experiment 2, disgust-eliciting and neutral stimuli belonging to seven different domains were used: faces, food, animals, body products, injury/infections, death and hygiene. Results showed temporal overestimations when, compared to neutral conditions, disgusted faces (Experiments 1 and 2) and disgusting death and hygiene stimuli (Experiment 2) were used, and a temporal underestimation when images of rotten food (Experiment 1) were used. Results are discussed in terms of arousal-based and attention-based processes and showed that the degree of the emotional component influences time perception.
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Affiliation(s)
- Giovanna Mioni
- Department of General Psychology, University of Padova, Via Venezia, 8, 35131, Padua, Italy.
| | - Simon Grondin
- École de Psychologie, Université Laval, Quebec City, Canada
| | - Franca Stablum
- Department of General Psychology, University of Padova, Via Venezia, 8, 35131, Padua, Italy
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Toscano-Zapién AL, Velázquez-López D, Velázquez-Martínez DN. Attentional Mechanisms during the Performance of a Subsecond Timing Task. PLoS One 2016; 11:e0158508. [PMID: 27467762 PMCID: PMC4965134 DOI: 10.1371/journal.pone.0158508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/16/2016] [Indexed: 01/01/2023] Open
Abstract
There is evidence that timing processes in the suprasecond scale are modulated by attentional mechanisms; in addition, some studies have shown that attentional mechanisms also affect timing in the subsecond scale. Our aim was to study eye movements and pupil diameter during a temporal bisection task in the subsecond range. Subjects were trained to discriminate anchor intervals of 200 or 800 msec, and were then confronted with intermediate durations. Eye movements revealed that subjects used different cognitive strategies during the bisection timing task. When the stimulus to be timed appeared randomly at a central or 4 peripheral positions on a screen, some subjects choose to maintain their gaze toward the central area while other followed the peripheral placement of the stimulus; some others subjects used both strategies. The time of subjective equality did not differ between subjects who employed different attentional mechanisms. However, differences emerged in the timing variance and attentional indexes (time taken to initial fixation, latency to respond, pupil dilatation and duration and number of fixations to stimulus areas). Timing in the subsecond range seems invariant despite the use of different attentional strategies. Future research should determine whether the selection of attentional mechanisms is related to particular timing tasks or instructions or whether it represents idiosyncratic cognitive “styles”.
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Affiliation(s)
- Anna L. Toscano-Zapién
- Departamento de Psicofisiologia, Facultad de Psicología, Universidad Nacional Autónoma de México, D.F. México, 04510, México
| | - Daniel Velázquez-López
- Departamento de Matemáticas, Facultad de Ciencias, Universidad Nacional Autónoma de México, D.F. México, 04510, México
| | - David N. Velázquez-Martínez
- Departamento de Psicofisiologia, Facultad de Psicología, Universidad Nacional Autónoma de México, D.F. México, 04510, México
- * E-mail:
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Yue Z, Gao T, Chen L, Wu J. Odors Bias Time Perception in Visual and Auditory Modalities. Front Psychol 2016; 7:535. [PMID: 27148143 PMCID: PMC4841154 DOI: 10.3389/fpsyg.2016.00535] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 03/31/2016] [Indexed: 02/02/2023] Open
Abstract
Previous studies have shown that emotional states alter our perception of time. However, attention, which is modulated by a number of factors, such as emotional events, also influences time perception. To exclude potential attentional effects associated with emotional events, various types of odors (inducing different levels of emotional arousal) were used to explore whether olfactory events modulated time perception differently in visual and auditory modalities. Participants were shown either a visual dot or heard a continuous tone for 1000 or 4000 ms while they were exposed to odors of jasmine, lavender, or garlic. Participants then reproduced the temporal durations of the preceding visual or auditory stimuli by pressing the spacebar twice. Their reproduced durations were compared to those in the control condition (without odor). The results showed that participants produced significantly longer time intervals in the lavender condition than in the jasmine or garlic conditions. The overall influence of odor on time perception was equivalent for both visual and auditory modalities. The analysis of the interaction effect showed that participants produced longer durations than the actual duration in the short interval condition, but they produced shorter durations in the long interval condition. The effect sizes were larger for the auditory modality than those for the visual modality. Moreover, by comparing performance across the initial and the final blocks of the experiment, we found odor adaptation effects were mainly manifested as longer reproductions for the short time interval later in the adaptation phase, and there was a larger effect size in the auditory modality. In summary, the present results indicate that odors imposed differential impacts on reproduced time durations, and they were constrained by different sensory modalities, valence of the emotional events, and target durations. Biases in time perception could be accounted for by a framework of attentional deployment between the inducers (odors) and emotionally neutral stimuli (visual dots and sound beeps).
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Affiliation(s)
- Zhenzhu Yue
- Department of Psychology, Sun Yat-sen University Guangzhou, China
| | - Tianyu Gao
- Department of Psychology, Sun Yat-sen University Guangzhou, China
| | - Lihan Chen
- Department of Psychology and Beijing Key Laboratory of Behavior and Mental Health, Peking UniversityPeking, China; Key Laboratory of Machine Perception (Ministry of Education), Peking UniversityBeijing, China
| | - Jiashuang Wu
- Department of Psychology, Sun Yat-sen University Guangzhou, China
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Gros A, Manera V, Daumas A, Guillemin S, Rouaud O, Martin ML, Giroud M, Béjot Y. The Clock'N Test as a Possible Measure of Emotions: Normative Data Collected on a Non-clinical Population. Front Behav Neurosci 2016; 10:8. [PMID: 26903825 PMCID: PMC4742555 DOI: 10.3389/fnbeh.2016.00008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 01/18/2016] [Indexed: 11/26/2022] Open
Abstract
Objective: At present emotional experience and implicit emotion regulation (IER) abilities are mainly assessed though self-reports, which are subjected to several biases. The aim of the present studies was to validate the Clock’N test, a recently developed time estimation task employing emotional priming to assess implicitly emotional reactivity and IER. Methods: In Study 1, the Clock’N test was administered to 150 healthy participants with different age, laterality and gender, in order to ascertain whether these factors affected the test results. In phase 1 participant were asked to judge the duration of seven sounds. In phase 2, before judging the duration of the same sounds, participants were presented with short arousing video-clip used as emotional priming stimuli. Time warp was calculated as the difference in time estimation between phase 2 and phase 1, and used to assess how emotions affected subjective time estimations. In study 2, a representative sample was selected to provide normative scores to be employed to assess emotional reactivity (Score 1) and IER (Score 2), and to calculate statistical cutoffs, based on the 10th and 90th score distribution percentiles. Results: Converging with previous findings, the results of study 1 suggested that the Clock’N test can be employed to assess both emotional reactivity, as indexed by an initial time underestimation, and IER, as indexed by a progressive shift to time overestimation. No effects of gender, age and laterality were found. Conclusions: These results suggest that the Clock’N test is adapted to assess emotional reactivity and IER. After collection of data on the test discriminant and convergent validity, this test may be employed to assess deficits in these abilities in different clinical populations.
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Affiliation(s)
- Auriane Gros
- Department of Neurology, University Hospital of Dijon and EA4184 of the University of BurgundyDijon, France; CoBTeK Team (Cognition Behavior Technology), Institut Claude Pompidou, University of Nice Sophia AntipolisNice, France
| | - Valeria Manera
- CoBTeK Team (Cognition Behavior Technology), Institut Claude Pompidou, University of Nice Sophia Antipolis Nice, France
| | - Anaïs Daumas
- Dijon Stroke Registry, University Hospital and Medical School of Dijon, University of Burgundy Dijon, France
| | - Sophie Guillemin
- Resource and Research Memory Center, Hospital of Dijon Dijon, France
| | - Olivier Rouaud
- Resource and Research Memory Center, Hospital of Dijon Dijon, France
| | | | - Maurice Giroud
- Department of Neurology, University Hospital of Dijon and EA4184 of the University of BurgundyDijon, France; Dijon Stroke Registry, University Hospital and Medical School of Dijon, University of BurgundyDijon, France
| | - Yannick Béjot
- Department of Neurology, University Hospital of Dijon and EA4184 of the University of BurgundyDijon, France; Dijon Stroke Registry, University Hospital and Medical School of Dijon, University of BurgundyDijon, France
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Gros A. Olfaction, émotions et comportements. Eur Psychiatry 2015. [DOI: 10.1016/j.eurpsy.2015.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Le nez a ses raisons que la raison ignore. Les émotions olfactives sont souvent inconscientes et vont pourtant diriger nombreux de nos comportements. Ce lien étroit entre émotion et olfaction est dû au fait que certaines régions cérébrales sont à la fois impliquées dans les processus olfactifs et émotionnels (cortex frontal et amygdale). Dans les pathologies neurodégénératives, dont la maladie d’Alzheimer (MA), ces structures vont être atteintes à des stades plus ou moins sévères de la maladie. Au-delà d’une aide au diagnostic précoce, nous avons montré que l’utilisation d’odorants pourrait aider au diagnostic différentiel entre certains troubles de l’humeur et la maladie d’Alzheimer . Sentir et ressentir, humer et humeur : la langue française nous apporte déjà des preuves d’un lien étroit entre nos émotions et notre olfaction. De manière objective nous avons mis en évidence que les odorants étaient des générateurs d’émotion puissants et stables . Ainsi les odeurs pourraient constituer une alternative non pharmacologique de prise en charge des troubles émotionnels de manière pratique, cette présentation abordera, en premier lieu, le lien précoce entre atteinte olfactive et psycho-comportementale dans la maladie d’Alzheimer puis l’intérêt de la stimulation olfactive dans la prise en charge non médicamenteuse des perturbations émotionnelles et comportementales dans cette pathologie. Pour finir, nous nous interrogerons sur l’apport de l’étude de l’olfaction dans la prise en charge des principaux syndromes émotionnels et thymiques du champ de la pathologie psychiatrique.
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