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Foerster FR, Joos E, Martin B, Coull JT, Giersch A. Self and time in individuals with schizophrenia: A motor component? Schizophr Res 2024; 272:12-19. [PMID: 39178737 DOI: 10.1016/j.schres.2024.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 07/23/2024] [Accepted: 08/14/2024] [Indexed: 08/26/2024]
Abstract
Phenomenology suggests a disruption in the experience of time in individuals with schizophrenia, related to disorders of the sense of self. Patients themselves relate a fragmentation of their temporal experience and of their sense of self. Temporal expectations help relate the present moment to the future and we have previously shown that temporal expectations are fragile in patients, and relate to disorders of the self. Here, we investigate whether patients' performance is still impaired when the motor response to the expected event can be prepared in advance. In two different experiments participants (41 patients vs. 43 neurotypicals in total) responded to a visual target occurring at a variable interval (or "foreperiod") after an initial warning signal. Moreover, in Experiment 1 we measured the sense of self with the EASE scale. We observed the usual benefit of the passage of time: the longer the waiting period, the better the preparation, and the faster the responses. However, this effect also comprises sequential (surprise) effects, when a target occurs earlier than on the preceding trial. We evaluated the effect of the passage of time, by isolating trials that followed a trial with the same foreperiod. The benefit of long, versus short, foreperiods was still observed in controls but disappeared in patients. The results suggest that the benefit of the passage of time is diminished in patients and relates to self disorders, even when the task allows for motor preparation. The results suggest that a non-verbal impairment sub-tends disorders of the sense of self.
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Affiliation(s)
- Francois R Foerster
- University of Strasbourg, INSERM Unit 1329 'Strasbourg Translational nEuroscience & Psychiatry (STEP)' Team Psychiatry, University Hospital of Strasbourg, ITI Neurostra, 1 pl de l'Hôpital, 67000 Strasbourg, France
| | - E Joos
- University of Strasbourg, INSERM Unit 1329 'Strasbourg Translational nEuroscience & Psychiatry (STEP)' Team Psychiatry, University Hospital of Strasbourg, ITI Neurostra, 1 pl de l'Hôpital, 67000 Strasbourg, France
| | - B Martin
- Centre Ressource de Réhabilitation psychosociale et de remédiation cognitive, Centre Référent Lyonnais en Réhabilitation et en Remédiation cognitive (CL3R) Hôpital du Vinatier, Lyon, France
| | - J T Coull
- Centre for Research in Psychology & Neuroscience (UMR 7077), Aix-Marseille Université & CNRS, 3 Place Victor Hugo, 13331 Marseille cedex 3, France
| | - A Giersch
- University of Strasbourg, INSERM Unit 1329 'Strasbourg Translational nEuroscience & Psychiatry (STEP)' Team Psychiatry, University Hospital of Strasbourg, ITI Neurostra, 1 pl de l'Hôpital, 67000 Strasbourg, France.
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2
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Houshmand Chatroudi A, Mioni G, Yotsumoto Y. On the nonlinearity of the foreperiod effect. Sci Rep 2024; 14:2780. [PMID: 38307986 PMCID: PMC10837441 DOI: 10.1038/s41598-024-53347-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/31/2024] [Indexed: 02/04/2024] Open
Abstract
One of the frequently employed tasks within the implicit timing paradigm is the foreperiod task. The foreperiod is the time interval spanning from the presentation of a warning signal to the appearance of a target stimulus, during which reaction time trajectory follows time uncertainty. While the typical approach in analyzing foreperiod effects is based on linear approximations, the uncertainty in the estimation of time, expressed by the Weber fraction, implies a nonlinear trend. In the present study, we analyzed the variable foreperiod reaction times from a relatively large sample (n = 109). We found that the linear regression on reaction times and log-transformed reaction times poorly fitted the foreperiod data. However, a nonlinear regression based on an exponential decay function with three distinctive parameters provided the best fit. We discussed the inferential hazards of a simplistic linear approach and demonstrated how a nonlinear formulation can create new opportunities for studies in implicit timing research, which were previously impossible.
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Affiliation(s)
| | - Giovanna Mioni
- Department of General Psychology, University of Padua, Padua, Italy
| | - Yuko Yotsumoto
- Department of Life Sciences, The University of Tokyo, Tokyo, Japan.
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3
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Speers LJ, Sissons DJ, Cleland L, Bilkey DK. Hippocampal phase precession is preserved under ketamine, but the range of precession across a theta cycle is reduced. J Psychopharmacol 2023; 37:809-821. [PMID: 37515458 PMCID: PMC10399102 DOI: 10.1177/02698811231187339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
BACKGROUND Hippocampal phase precession, which depends on the precise spike timing of place cells relative to local theta oscillations, has been proposed to underlie sequential memory. N-methyl-D-asparate (NMDA) receptor antagonists such as ketamine disrupt memory and also reproduce several schizophrenia-like symptoms, including spatial memory impairments and disorganized cognition. It is possible that these impairments result from disruptions to phase precession. AIMS/METHODS We used an ABA design to test whether an acute, subanesthetic dose (7.5 mg/kg) of ketamine disrupted phase precession in CA1 of male rats as they navigated around a rectangular track for a food reward. RESULTS/OUTCOMES Ketamine did not affect the ability of CA1 place cells to precess despite changes to place cell firing rates, local field potential properties and locomotor speed. However, ketamine reduced the range of phase precession that occurred across a theta cycle. CONCLUSION Phase precession is largely robust to acute NMDA receptor antagonism by ketamine, but the reduced range of precession could have important implications for learning and memory.
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Affiliation(s)
| | - Daena J Sissons
- Psychology Department, Otago University Dunedin, New Zealand
- Psychology Department, University of Canterbury, Christchurch, New Zealand
| | - Lana Cleland
- Psychology Department, Otago University Dunedin, New Zealand
- Department Psychological Medicine, Otago University, Christchurch, New Zealand
- Department Population Health, Otago University, Christchurch, New Zealand
| | - David K Bilkey
- Psychology Department, Otago University Dunedin, New Zealand
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Giersch A, Laprévote V. Perceptual Functioning. Curr Top Behav Neurosci 2023; 63:79-113. [PMID: 36306053 DOI: 10.1007/7854_2022_393] [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] [Indexed: 06/16/2023]
Abstract
Perceptual disorders are not part of the diagnosis criteria for schizophrenia. Yet, a considerable amount of work has been conducted, especially on visual perception abnormalities, and there is little doubt that visual perception is altered in patients. There are several reasons why such perturbations are of interest in this pathology. They are observed during the prodromal phase of psychosis, they are related to the pathophysiology (clinical disorganization, disorders of the sense of self), and they are associated with neuronal connectivity disorders. Perturbations occur at different levels of processing and likely affect how patients interact and adapt to their surroundings. The literature has become very large, and here we try to summarize different models that have guided the exploration of perception in patients. We also illustrate several lines of research by showing how perception has been investigated and by discussing the interpretation of the results. In addition to discussing domains such as contrast sensitivity, masking, and visual grouping, we develop more recent fields like processing at the level of the retina, and the timing of perception.
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Affiliation(s)
- Anne Giersch
- University of Strasbourg, INSERM U1114, Centre Hospitalier Régional Universitaire de Strasbourg, Strasbourg, France.
| | - Vincent Laprévote
- University of Strasbourg, INSERM U1114, Centre Hospitalier Régional Universitaire de Strasbourg, Strasbourg, France
- CLIP Centre de Liaison et d'Intervention Précoce, Centre Psychothérapique de Nancy, Laxou, France
- Faculté de Médecine, Université de Lorraine, Vandoeuvre-lès-Nancy, France
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5
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Ciullo V, Piras F, Banaj N, Vecchio D, Piras F, Sani G, Ducci G, Spalletta G. Internal clock variability, mood swings and working memory in bipolar disorder. J Affect Disord 2022; 315:48-56. [PMID: 35907479 DOI: 10.1016/j.jad.2022.07.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/12/2022] [Accepted: 07/22/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Distortions in time processing may be regarded as an endophenotypic marker of neuropsychiatric diseases; however, investigations addressing Bipolar Disorder (BD) are still scarce. METHODS The present study compared timing abilities in 30 BD patients and 30 healthy controls (HC), and explored the relationship between time processing and affective-cognitive symptoms in BD, with the aim to determine whether timing difficulties are primary in bipolar patients or due to comorbid cognitive impairment. Four tasks measuring external timing were administered: a temporal and spatial orienting of attention task and a temporal and colour discrimination task, for assessing the ability to evaluate temporal properties of external events; two other tasks assessed the speed of the internal clock (i.e. temporal bisection and temporal production tasks). Attentional, executive and working memory (WM) demands were equated for controlling additional cognitive processes. RESULTS BD patients did not show differences in external timing accuracy compared to HC; conversely, we found increased variability of the internal clock in BD and this performance was related to Major Depressive Episodes recurrence and WM functioning. Hence, variability of the internal clock is influenced by the progressive course of BD and impacted by variations in WM. LIMITATIONS Future studies including BD patients stratified by mood episode will further specify timing alterations conditional to the current affective state. CONCLUSIONS Our results shed new light on the clinical phenotypes of BD, suggesting that timing might be used as a model system of the ongoing pathophysiological process.
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Affiliation(s)
- Valentina Ciullo
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Federica Piras
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Nerisa Banaj
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Daniela Vecchio
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Fabrizio Piras
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Gabriele Sani
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy; Department of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Giuseppe Ducci
- Department of Mental Health, ASL, Roma 1, 00135 Rome, Italy
| | - Gianfranco Spalletta
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy.
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Explicit and implicit timing in older adults: Dissociable associations with age and cognitive decline. PLoS One 2022; 17:e0264999. [PMID: 35294473 PMCID: PMC8926191 DOI: 10.1371/journal.pone.0264999] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 02/20/2022] [Indexed: 11/19/2022] Open
Abstract
This study aimed to test two common explanations for the general finding of age-related changes in the performance of timing tasks within the millisecond-to-second range intervals. The first explanation is that older adults have a real difficulty in temporal processing as compared to younger adults. The second explanation is that older adults perform poorly on timing tasks because of their reduced cognitive control functions. These explanations have been mostly contrasted in explicit timing tasks that overtly require participants to process interval durations. Fewer studies have instead focused on implicit timing tasks, where no explicit instructions to process time are provided. Moreover, the investigation of both explicit and implicit timing in older adults has been restricted so far to healthy older participants. Here, a large sample (N = 85) comprising not only healthy but also pathological older adults completed explicit (time bisection) and implicit (foreperiod) timing tasks within a single session. Participants’ age and cognitive decline, measured with the Mini-Mental State Examination (MMSE), were used as continuous variables to explain performance on explicit and implicit timing tasks. Results for the explicit timing task showed a flatter psychometric curve with increasing age or decreasing MMSE scores, pointing to a deficit at the level of cognitive control functions rather than of temporal processing. By contrast, for the implicit timing task, a decrease in the MMSE scores was associated with a reduced foreperiod effect, an index of implicit time processing. Overall, these findings extend previous studies on explicit and implicit timing in healthy aged samples by dissociating between age and cognitive decline (in the normal-to-pathological continuum) in older adults.
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Chen J, Xue K, Yang M, Wang K, Xu Y, Wen B, Cheng J, Han S, Wei Y. Altered Coupling of Cerebral Blood Flow and Functional Connectivity Strength in First-Episode Schizophrenia Patients With Auditory Verbal Hallucinations. Front Neurosci 2022; 16:821078. [PMID: 35546878 PMCID: PMC9083321 DOI: 10.3389/fnins.2022.821078] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Auditory verbal hallucinations (AVHs) are a major symptom of schizophrenia and are connected with impairments in auditory and speech-related networks. In schizophrenia with AVHs, alterations in resting-state cerebral blood flow (CBF) and functional connectivity have been described. However, the neurovascular coupling alterations specific to first-episode drug-naïve schizophrenia (FES) patients with AVHs remain unknown. Methods Resting-state functional MRI and arterial spin labeling (ASL) was performed on 46 first-episode drug-naïve schizophrenia (FES) patients with AVHs (AVH), 39 FES drug-naïve schizophrenia patients without AVHs (NAVH), and 48 healthy controls (HC). Then we compared the correlation between the CBF and functional connection strength (FCS) of the entire gray matter between the three groups, as well as the CBF/FCS ratio of each voxel. Correlation analyses were performed on significant results between schizophrenia patients and clinical measures scale. Results The CBF/FCS ratio was reduced in the cognitive and emotional brain regions in both the AVH and NAVH groups, primarily in the crus I/II, vermis VI/VII, and cerebellum VI. In the AVH group compared with the HC group, the CBF/FCS ratio was higher in auditory perception and language-processing areas, primarily the left superior and middle temporal gyrus (STG/MTG). The CBF/FCS ratio in the left STG and left MTG positively correlates with the score of the Auditory Hallucination Rating Scale in AVH patients. Conclusion These findings point to the difference in neurovascular coupling failure between AVH and NAVH patients. The dysfunction of the forward model based on the predictive and computing role of the cerebellum may increase the excitability in the auditory cortex, which may help to understand the neuropathological mechanism of AVHs.
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Affiliation(s)
| | | | | | | | | | | | - Jingliang Cheng
- Department of Magnetic Resonance Imaging, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shaoqiang Han
- Department of Magnetic Resonance Imaging, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yarui Wei
- Department of Magnetic Resonance Imaging, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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8
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Scott KJ, Tashakori-Sabzevar F, Bilkey DK. Maternal immune activation alters the sequential structure of ultrasonic communications in male rats. Brain Behav Immun Health 2021; 16:100304. [PMID: 34589796 PMCID: PMC8474666 DOI: 10.1016/j.bbih.2021.100304] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/16/2021] [Accepted: 07/24/2021] [Indexed: 11/23/2022] Open
Abstract
Maternal immune activation (MIA) is a risk factor for schizophrenia and many of the symptoms and neurodevelopmental changes associated with this disorder have been modelled in the rodent. While several previous studies have reported that rodent ultrasonic vocalizations (USVs) are affected by MIA, no previous study has examined whether MIA affects the way that individual USVs occur over time to produce vocalisation sequences. The sequential aspect of this behaviour may be particularly important because changes in sequencing mechanisms have been proposed as a core deficit in schizophrenia. The present research generates MIA with POLY I:C administered to pregnant Sprague-Dawley rat dams at GD15. Male pairs of MIA adult offspring or pairs of their saline controls were placed into a two-chamber apparatus where they were separated from each other by a perforated plexiglass barrier. USVs were recorded for a period of 10 min and automated detection and call review were used to classify short call types in the nominal 50 kHz band of social affiliative calls. Our data show that the duration of these 50-kHz USVs is longer in MIA rat pairs and the time between calls is shorter. Furthermore, the transition probability between call pairs was different in the MIA animals compared to the control group, indicating alterations in sequential behaviour. These results provide the first evidence that USV call sequencing is altered by the MIA intervention and suggest that further investigations of these temporally extended aspects of USV production are likely to reveal useful information about the mechanisms that underlie sequence generation. This is particularly important given previous research suggesting that sequencing deficits may have a significant impact on both behaviour and cognition.
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Affiliation(s)
| | | | - David K. Bilkey
- Department of Psychology, University of Otago, Dunedin, New Zealand
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Chassignolle M, Jovanovic L, Schmidt-Mutter C, Behr G, Giersch A, Coull JT. Dopamine Precursor Depletion in Healthy Volunteers Impairs Processing of Duration but Not Temporal Order. J Cogn Neurosci 2021; 33:946-963. [PMID: 33656394 DOI: 10.1162/jocn_a_01700] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Studies in animals and humans have implicated the neurotransmitter dopamine in duration processing. However, very few studies have examined dopamine's involvement in other forms of temporal processing such as temporal order judgments. In a randomized within-subject placebo-controlled design, we used acute phenylalanine/tyrosine depletion (APTD) to reduce availability of the dopamine precursors tyrosine and phenylalanine in healthy human volunteers. As compared to a nutritionally balanced drink, APTD significantly impaired the ability to accurately reproduce interval duration in a temporal reproduction task. In addition, and confirming previous findings, the direction of error differed as a function of individual differences in underlying dopamine function. Specifically, APTD caused participants with low baseline dopamine precursor availability to overestimate the elapse of time, whereas those with high dopamine availability underestimated time. In contrast to these effects on duration processing, there were no significant effects of APTD on the accuracy of discriminating the temporal order of visual stimuli. This pattern of results does not simply represent an effect of APTD on motor, rather than perceptual, measures of timing because APTD had no effect on participants' ability to use temporal cues to speed RT. Our results demonstrate, for the first time in healthy volunteers, a dopaminergic dissociation in judging metrical (duration) versus ordinal (temporal order) aspects of time.
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Garcés MS, Alústiza I, Albajes-Eizagirre A, Goena J, Molero P, Radua J, Ortuño F. An fMRI Study Using a Combined Task of Interval Discrimination and Oddball Could Reveal Common Brain Circuits of Cognitive Change. Front Psychiatry 2021; 12:786113. [PMID: 34987432 PMCID: PMC8721204 DOI: 10.3389/fpsyt.2021.786113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/02/2021] [Indexed: 12/04/2022] Open
Abstract
Recent functional neuroimaging studies suggest that the brain networks responsible for time processing are involved during other cognitive processes, leading to a hypothesis that time-related processing is needed to perform a range of tasks across various cognitive functions. To examine this hypothesis, we analyze whether, in healthy subjects, the brain structures activated or deactivated during performance of timing and oddball-detection type tasks coincide. To this end, we conducted two independent signed differential mapping (SDM) meta-analyses of functional magnetic resonance imaging (fMRI) studies assessing the cerebral generators of the responses elicited by tasks based on timing and oddball-detection paradigms. Finally, we undertook a multimodal meta-analysis to detect brain regions common to the findings of the two previous meta-analyses. We found that healthy subjects showed significant activation in cortical areas related to timing and salience networks. The patterns of activation and deactivation corresponding to each task type partially coincided. We hypothesize that there exists a time and change-detection network that serves as a common underlying resource used in a broad range of cognitive processes.
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Affiliation(s)
- María Sol Garcés
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Spain.,Colegio de Ciencias Sociales y Humanidades, Universidad San Francisco de Quito USFQ, Quito, Ecuador.,Instituto de Neurociencias, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | - Irene Alústiza
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra (IDISNA), Pamplona, Spain
| | - Anton Albajes-Eizagirre
- Imaging of Mood and Anxiety Related Disorders (IMARD) Group, d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), CIBERSAM ES, Barcelona, Spain
| | - Javier Goena
- Instituto de Neurociencias, Universidad San Francisco de Quito USFQ, Quito, Ecuador.,Instituto de Investigación Sanitaria de Navarra (IDISNA), Pamplona, Spain
| | - Patricio Molero
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra (IDISNA), Pamplona, Spain
| | - Joaquim Radua
- Imaging of Mood and Anxiety Related Disorders (IMARD) Group, d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), CIBERSAM ES, Barcelona, Spain.,Early Psychosis: Interventions and Clinical-Detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.,Department of Clinical Neuroscience, Centre for Psychiatric Research and Education, Karolinska Institutet SE, Solna, Sweden
| | - Felipe Ortuño
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra (IDISNA), Pamplona, Spain
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Aman L, Picken S, Andreou LV, Chait M. Sensitivity to temporal structure facilitates perceptual analysis of complex auditory scenes. Hear Res 2020; 400:108111. [PMID: 33333425 PMCID: PMC7812374 DOI: 10.1016/j.heares.2020.108111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/13/2020] [Accepted: 11/06/2020] [Indexed: 11/17/2022]
Abstract
Perception relies on sensitivity to predictable structure in the environment. We used artificial acoustic scenes to investigate this in the auditory modality. Listeners track the temporal structure of multiple concurrent acoustic streams. Sensitivity to predictable structure supports auditory scene analysis, even when scenes are complex. Benefit of regularity observed even when listeners are unaware of the predictable structure.
The notion that sensitivity to the statistical structure of the environment is pivotal to perception has recently garnered considerable attention. Here we investigated this issue in the context of hearing. Building on previous work (Sohoglu and Chait, 2016a; elife), stimuli were artificial ‘soundscapes’ populated by multiple (up to 14) simultaneous streams (‘auditory objects’) comprised of tone-pip sequences, each with a distinct frequency and pattern of amplitude modulation. Sequences were either temporally regular or random. We show that listeners’ ability to detect abrupt appearance or disappearance of a stream is facilitated when scene streams were characterized by a temporally regular fluctuation pattern. The regularity of the changing stream as well as that of the background (non-changing) streams contribute independently to this effect. Remarkably, listeners benefit from regularity even when they are not consciously aware of it. These findings establish that perception of complex acoustic scenes relies on the availability of detailed representations of the regularities automatically extracted from multiple concurrent streams.
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Affiliation(s)
- Lucie Aman
- Ear Institute, University College London, 332 Gray's Inn Road, London WC1X 8EE, UK; Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Samantha Picken
- Ear Institute, University College London, 332 Gray's Inn Road, London WC1X 8EE, UK
| | - Lefkothea-Vasiliki Andreou
- Ear Institute, University College London, 332 Gray's Inn Road, London WC1X 8EE, UK; Vocational Lyceum of Zakynthos, Ministry of Education, Research and Religious Affairs, Zakynthos, Greece
| | - Maria Chait
- Ear Institute, University College London, 332 Gray's Inn Road, London WC1X 8EE, UK.
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12
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Affiliation(s)
- Sagar S Lad
- Veterans Affairs Mid-Atlantic Mental Illness Research, Education, and Clinical Center, and Research and Academic Affairs Service Line, W.G. Hefner Veterans Affairs Medical Center, Salisbury, N.C. (Lad, Hurley, Taber); Departments of Psychiatry and Radiology, Wake Forest School of Medicine, Winston-Salem, N.C., and Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston (Hurley); and Division of Biomedical Sciences, Via College of Osteopathic Medicine, Blacksburg, Va., and Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston (Taber)
| | - Robin A Hurley
- Veterans Affairs Mid-Atlantic Mental Illness Research, Education, and Clinical Center, and Research and Academic Affairs Service Line, W.G. Hefner Veterans Affairs Medical Center, Salisbury, N.C. (Lad, Hurley, Taber); Departments of Psychiatry and Radiology, Wake Forest School of Medicine, Winston-Salem, N.C., and Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston (Hurley); and Division of Biomedical Sciences, Via College of Osteopathic Medicine, Blacksburg, Va., and Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston (Taber)
| | - Katherine H Taber
- Veterans Affairs Mid-Atlantic Mental Illness Research, Education, and Clinical Center, and Research and Academic Affairs Service Line, W.G. Hefner Veterans Affairs Medical Center, Salisbury, N.C. (Lad, Hurley, Taber); Departments of Psychiatry and Radiology, Wake Forest School of Medicine, Winston-Salem, N.C., and Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston (Hurley); and Division of Biomedical Sciences, Via College of Osteopathic Medicine, Blacksburg, Va., and Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston (Taber)
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13
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Nuyens FM, Kuss DJ, Lopez-Fernandez O, Griffiths MD. The Potential Interaction Between Time Perception and Gaming: A Narrative Review. Int J Ment Health Addict 2020. [DOI: 10.1007/s11469-019-00121-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Abstract
Compromised time control is a variable of interest among disordered gamers because time spent on videogames can directly affect individuals’ lives. Although time perception appears to be closely associated with this phenomenon, previous studies have not systematically found a relationship between time perception and gaming. Therefore, the purpose of this narrative review is to explore how gaming disorder may be associated with time perception. It has been found that gamers exhibit a stronger attentional focus as well as an improved working memory compared with non-gamers. However, gamers (and especially disordered gamers) exhibit a stronger reaction to gaming cues which—coupled with an altered emotion regulation observed among disordered gamers—could directly affect their time perception. Finally, “'flow states”' direct most of the attentional resources to the ongoing activity, leading to a lack of resources allocated to the time perception. Therefore, entering a flow state will result in an altered time perception, most likely an underestimation of duration. The paper concludes that the time loss effect observed among disordered gamers can be explained via enhanced emotional reactivity (facilitated by impaired emotion regulation).
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Davalos D, Mioni G, Grondin S, Ortuño F. Editorial: Time Perception and Dysfunction: Clinical and Practical Implications. Front Hum Neurosci 2018; 12:435. [PMID: 30405384 PMCID: PMC6206297 DOI: 10.3389/fnhum.2018.00435] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 10/03/2018] [Indexed: 11/19/2022] Open
Affiliation(s)
- Deana Davalos
- Department of Psychology, Colorado State University, Fort Collins, CO, United States
| | - Giovanna Mioni
- Department of General Psychology, Università degli Studi di Padova, Padova, Italy
| | - Simon Grondin
- École de Psychologie, Université Laval, Quebec, QC, Canada
| | - Felipe Ortuño
- Department of Psychiatry and Medical Psychology, Universidad de Navarra, Pamplona, Spain
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Gili T, Ciullo V, Spalletta G. Metastable States of Multiscale Brain Networks Are Keys to Crack the Timing Problem. Front Comput Neurosci 2018; 12:75. [PMID: 30254581 PMCID: PMC6141745 DOI: 10.3389/fncom.2018.00075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 08/17/2018] [Indexed: 01/02/2023] Open
Abstract
The dynamics of the environment where we live in and the interaction with it, predicting events, provided strong evolutionary pressures for the brain functioning to process temporal information and generate timed responses. As a result, the human brain is able to process temporal information and generate temporal patterns. Despite the clear importance of temporal processing to cognition, learning, communication and sensory, motor and emotional processing, the basal mechanisms of how animals differentiate simple intervals or provide timed responses are still under debate. The lesson we learned from the last decade of research in neuroscience is that functional and structural brain connectivity matter. Specifically, it has been accepted that the organization of the brain in interacting segregated networks enables its function. In this paper we delineate the route to a promising approach for investigating timing mechanisms. We illustrate how novel insight into timing mechanisms can come by investigating brain functioning as a multi-layer dynamical network whose clustered dynamics is bound to report the presence of metastable states. We anticipate that metastable dynamics underlie the real-time coordination necessary for the brain's dynamic functioning associated to time perception. This new point of view will help further clarifying mechanisms of neuropsychiatric disorders.
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Affiliation(s)
- Tommaso Gili
- IMT School for Advanced Studies Lucca, Lucca, Italy.,Laboratory of Neuropsychiatry, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Valentina Ciullo
- Laboratory of Neuropsychiatry, IRCCS Santa Lucia Foundation, Rome, Italy.,Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
| | - Gianfranco Spalletta
- Laboratory of Neuropsychiatry, IRCCS Santa Lucia Foundation, Rome, Italy.,Division of Neuropsychiatry, Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, United States
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