Abnormal Subjective Time Experience in Depression

Acta Psychiatrica Scandinavica, 2004

Psychopathology, 2016

slackening of the flow of time (25 patients). A comparison with ATE in schizophrenia patients showed that in MDD, unlike in schizophrenia, there is no disarticulation of time experience (disorder of temporal synthesis) but rather a disorder of conation or inhibition of becoming. Limitations: The interview style was not meant to make a quantitative assessment ("false negatives" cannot be excluded). Conclusions: Our findings confirm the relevance of distinctive features of ATE in MDD, support the hypothesis of an intrinsic disordered temporal structure in depressive symptoms, and may have direct implications in clinical practice, especially in relation to differential diagnosis, setting the boundaries between "true" and milder forms of depression, and neurobiological research.

Individuals with depression1 often report a slower subjective experience of time – as well those diagnosed with other psychiatric disorders (such as schizophrenia for example) may present with an altered and distorted perception of time. Psychiatric disorders, perception of time, depression

The paper first introduces the concept of implicit and explicit temporality, referring to time as pre-reflectively lived vs. consciously experienced. Implicit time is based on the constitutive synthesis of inner time consciousness on the one hand, and on the conative-affective dynamics of life on the other hand. Explicit time results from an interruption or negation of implicit time and unfolds itself in the dimensions of present, past and future. It is further shown that temporality, embodiment and intersubjectivity are closely connected: While implicit temporality is characterised by tacit bodily functioning and by synchronisation with others, explicit temporality arises with states of desynchronisation, that is, of a retardation or acceleration of inner time in relation to external or social processes. These states often bring the body to awareness as an obstacle as well. On this basis, schizophrenia and melancholic depression are investigated as paradigm cases for a psychopathology of temporality. Major symptoms of schizophrenia such as thought disorder, thought insertion, hallucinations or passivity experiences may be regarded as manifesting a disturbance of the constitutive synthesis of time consciousness, closely connected with a weakening of the underlying pre-reflective self-awareness or ipseity. This results in a fragmentation of the intentional arc, a loss of selfcoherence and the appearance of major self-disturbances. Depression, on the other hand, is mostly triggered by a desynchronisation from the social environment and further develops into an inhibition of the conative-affective dynamics of life. As will be shown, both mental illnesses bear witness of the close connection of temporality, embodiment and intersubjectivity.

Frontiers in human neuroscience, 2018

Disturbances in the experience of time have been a commonly reported feature of depressive disorders since the beginning of modern psychiatry and psychological research. However, qualitative research approaches to investigate the phenomenon are rarely used. We employed content analysis to investigate disturbances of time experience in Major Depressive Disorder. Our analysis from 25 participants showed that individuals with Major Depressive Disorder subjectively seem to have lost the ability to influence or change the present, resulting in an impersonal and blocked future. The present is rendered meaningless, the past unchangeably negative, and the passage of time turned into a dragging, inexorable, and viscous continuance. The overall,-possibly intersubjective-concept of time experience, remains largely intact, causing or adding to depressive mood and suffering. We elaborate on how these findings reflect previous theories on the experience of time in depression. This study might enc...

There is consistent evidence that depressive state affects time perception, although the relevant mechanisms are unclear. We used three paradigms to investigate such effects. The first uses production and verbal estimation of time in seconds, controversial in other studies. There were no significant depression effects for psychophysical functions. The second uses operant learning, an innovation for humans. Depressed participants gave longer estimates than non depressed participants for intervals preceding a change in external contingencies. The third uses a modified staircase to find 75% discrimination thresholds for shorter (50ms) and longer (1000ms) intervals. Depressed people have worse discrimination for longer intervals only. These results suggest that neither long term memory for times in seconds nor internal clock speed are implicated in mood effects in time perception. Mood differences are more likely to be due to attention paid to external stimuli and contexts

Phenomenology and the Cognitive Sciences, 2020

The goal of this paper is to introduce Phenomenology and the Cognitive Sciences' thematic issue on disordered temporalities. The authors begin by discussing the main reason for the neglect of temporal experience in present-day psychiatric nosologies, mainly, its reduction to clock time. Methodological challenges facing research on temporal experience include addressing the felt sense of time, its structure, and its pre-reflective aspects in the life-world setting. In the second part, the paper covers the contributions to the thematic issue concerning temporal experience in anxiety, depression , mania, addiction, post-traumatic stress disorder, autism, and in recovery from psychosis. The authors argue in favor of integrative and cross-disciplinary approaches. In conclusion, they present time as a significant aspect of human suffering.

European Journal of Psychotherapy & Counselling, 2013

Emotion Review, 2012

I examine several aspects of the experience of time in depression and in the experience of different emotions. Both phenomenological and experimental studies show that depressed subjects have a slowed experience of time flow and tend to overestimate time spans. In comparison to patients in control conditions, depressed patients tend to be preoccupied with past events, and less focused on

Journal of Consciousness Studies, 2018

This paper argues that duality accounts of time, as exemplified by Henri Bergson’s, Edmund Husserl’s and John McTaggart’s ideas, parallel the decomposition of temporal experience in depressive psychosis into objective and subjective dimensions of time. The paper also proposes to comprehend the full-fledged depressive temporal delusion, in whichthe subjective flow of time comes to a standstill via the idea of a double orientation toreality characteristic of schizophrenic delusions. In the depressive temporal delusion a person claims that time is not moving while simultaneously her cognitive orientation intemporal surroundings remains largely unaffected, and hence the double orientation. The juxtaposition of temporal experience in depression with the temporal disorientation indementia enables to situate the depressive delusion regarding the flow of time in the middleof a proposed scale of the disintegration of normal temporal experience

2012

Abstract I examine several aspects of the experience of time in depression and in the experience of different emotions. Both phenomenological and experimental studies show that depressed subjects have a slowed experience of time flow and tend to overestimate time spans. In comparison to patients in control conditions, depressed patients tend to be preoccupied with past events, and less focused on present and future events.

European Psychiatry, 2022

BackgroundThe experience of time, or the temporal order of external and internal events, is essential for humans. In psychiatric disorders such as depression and schizophrenia, impairment of time processing has been discussed for a long time.AimsIn this explorative pilot study, therefore, the subjective time feeling as well as objective time perception were determined in patients with depression and schizophrenia, along with possible neurobiological correlates.MethodsDepressed (n = 34; 32.4 ± 9.8 years; 21 men) and schizophrenic patients (n = 31; 35.1 ± 10.7 years; 22 men) and healthy subjects (n = 33; 32.8 ± 14.3 years; 16 men) were tested using time feeling questionnaires, time perception tasks and critical flicker-fusion frequency (CFF) and loudness dependence of auditory evoked potentials (LDAEP) to determine serotonergic neurotransmission.ResultsThere were significant differences between the three groups regarding time feeling and also in time perception tasks (estimation of gi...

The effect of mild depression on time estimation and production was investigated. Participants made both magnitude estimation and magnitude production judgments for five time intervals (specified in seconds) from 3 sec to 65 sec. The parameters of the best fitting psychophysical function (power law exponent, intercept, and threshold) were determined individually for each participant in every condition. There were no significant effects of mood (high BDI, low BDI) or judgment (estimation, production) on the mean exponent, n = .98, 95% confidence interval (.96-1.04) or on the threshold. However, the intercept showed a 'depressive realism' effect, where high BDI participants had a smaller deviation from accuracy and a smaller difference between estimation and judgment than low BDI participants. Accuracy bias was assessed using three measures of accuracy: difference, defined as psychological time minus physical time, ratio, defined as psychological time divided by physical time, and a new logarithmic accuracy measure defined as ln (ratio). The ln (ratio) measure was shown to have approximately normal residuals when subjected to a mixed ANOVA with mood as a between groups explanatory factor and judgment and time category as repeated measures explanatory factors. The residuals of the other two accuracy measures flagrantly violated normality. The mixed ANOVAs of accuracy also showed a strong depressive realism effect, just like the intercepts of the psychophysical functions. There was also a strong negative correlation between estimation and production judgments. Taken together these findings support a clock model of time estimation, combined with additional cognitive mechanisms to account for the depressive realism effect. The findings also suggest strong methodological recommendations.

Frontiers in Human Neuroscience

European Psychiatry, 2008

Patients with affective disorders have often been reported to experience subjective changes in how they perceive the flow of time. Time reproduction tasks provide information about the memory component of time perception and are thought to remain unaffected by pulse rate disturbances in the pacemaker of the internal clock.