Abnormal Time Experiences in Major Depression: An Empirical Qualitative Study.

Area of Science:

• Psychiatry
• Phenomenological Psychopathology
• Clinical Psychology

Background:

• Major depressive disorder (MDD) is theorized as a disorder of time experience.
• Empirical investigations into abnormal time experience (ATE) in MDD are limited.
• This study provides a large-scale qualitative analysis of temporal experiences in MDD patients.

Purpose of the Study:

• To empirically investigate and qualitatively analyze abnormal time experiences in individuals with Major Depressive Disorder (MDD).
• To explore the nature and prevalence of ATE in MDD.
• To differentiate ATE in MDD from that observed in schizophrenia.

Main Methods:

• Qualitative analysis of interviews with 550 patients diagnosed with affective or schizophrenic disorders.
• Consensual qualitative research methodology applied to clinical files.
• Focus on 100 patients with MDD for detailed analysis of temporal experiences.

Main Results:

• 96% of MDD patients (96 out of 100) reported at least one ATE.
• Key ATE categories in MDD include vital retardation (37 patients), past-dominated present/future (29 patients), and slackened time flow (25 patients).
• MDD exhibits a disorder of conation or inhibition of becoming, distinct from the temporal synthesis disorder seen in schizophrenia.

Conclusions:

• Findings support the hypothesis of an intrinsically disordered temporal structure in depressive symptoms.
• Distinctive features of ATE in MDD are confirmed.
• Results have implications for differential diagnosis, distinguishing depression severity, and neurobiological research.