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Related Experiment Video

Updated: Jan 2, 2026

Design and Implementation of an fMRI Study Examining Thought Suppression in Young Women with, and At-risk, for Depression
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Temporal Preparation, Impulsivity and Short-Term Memory in Depression.

Tzu-Yu Hsu1,2, Hsin-Chien Lee3,4,5, Timothy Joseph Lane1,2,6

  • 1Graduate Institute of Mind, Brain and Consciousness, College of Humanities and Social Sciences, Taipei Medical University, Taipei, Taiwan.

Frontiers in Behavioral Neuroscience
|December 12, 2019
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Summary

Major depressive disorder (MDD) is linked to altered temporal processing, affecting reaction times and decision-making. This study found MDD patients exhibit reduced temporal preparation and impaired short-term temporal memory, contributing to oculomotor impulsivity.

Keywords:
depressioneye movementimpulsivitymemorytemporal cognition

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • Patients with major depressive disorder (MDD) often report subjective time distortions.
  • These experiences suggest potential widespread temporal processing deficits in MDD.

Purpose of the Study:

  • To investigate temporal preparation in individuals with MDD.
  • To explore the relationship between temporal preparation, oculomotor control, and short-term temporal memory in MDD.

Main Methods:

  • Assessed temporal preparation using a saccadic eye movement task with variable preparatory periods.
  • Compared MDD patients with age-matched controls.
  • Analyzed reaction times, premature saccades, and saccade latency.

Main Results:

  • MDD patients exhibited increased premature saccades, indicating oculomotor impulsivity and reduced inhibitory control.
  • Temporal preparation significantly influenced saccade latency in controls but less so in MDD patients.
  • Reduced temporal preparation in MDD correlated with faster decay of short-term temporal memory.

Conclusions:

  • Findings support the hypothesis of altered temporal processing in MDD, specifically in the oculomotor domain.
  • Deficits in temporal preparation and short-term temporal memory may contribute to the subjective experience of time in MDD.
  • Oculomotor impulsivity interacts with temporal preparation deficits in MDD.