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December 21, 2020SymmetryOpen Access

Major Depressive Disorder was characterized by a lack of left dominance during the resting state and left hypoactivity during the task baseline and subsequent decision-making process.

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Why the study?

Depression is associated with impaired decision-making and resting frontal brain asymmetry, but brain asymmetry during decision-making under negative and positive feedback conditions remained to be investigated.

Does brain asymmetry differ between patients with Major Depressive Disorder and healthy controls during a decision-making task?

Population

60 MDD patients and 60 healthy participants

Comparison

MDD patients vs healthy control participants during a multi-stage decision-making task

Design

Case-control study

Key result

Major Depressive Disorder was characterized by a lack of left dominance during the resting state and left hypoactivity during the task baseline and subsequent decision-making process.

Authors

AKAlmira KustubayevaAKAltyngul KamzanovaSKSandugash Kudaibergenova

Discussion

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Member takes

Overview

Brain asymmetry during MDD decision-making feedback needs replication; leaves open valence-specific lateralization markers for targeted interventions.

Study Design

Type

Case-Control (n=120)

Structured PICO

Does brain asymmetry differ between patients with Major Depressive Disorder and healthy controls during a decision-making task?

P
Population
120 participants, comprising 60 patients with Major Depressive Disorder and 60 healthy controls, evaluated during a multi-stage decision-making task.
E
Exposure
Multi-stage decision-making task with negative and positive feedback conditions
C
Comparator
Healthy control participants
O
Outcome
Brain asymmetry (frontal, central, and parietal alpha asymmetry) and evoked potential responses (ERPs)surrogate

MDD is associated with altered brain asymmetry, specifically left hypoactivity, during decision-making tasks, highlighting potential EEG biomarkers for depression.

Cite This Study

Kustubayeva et al. (2020) conducted a case-control in Major Depressive Disorder (n=120). Major Depressive Disorder vs. Healthy controls was evaluated on Brain asymmetry (alpha power and ERP amplitudes) during a decision-making task. Major Depressive Disorder was characterized by a lack of left dominance during the resting state and left hypoactivity during the task baseline and subsequent decision-making process.

synapsesocial.com/papers/6a86fd0624dcec08efbefeabhttps://doi.org/10.3390/sym12122118
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Resting and task‐elicited prefrontal <scp>EEG</scp> alpha asymmetry in depression: Support for the capability model2014 · 172 citations
  2. 2Neurophysiological correlates of decision-making efficiency in depressive disorders2025
  3. 3Is Resting Anterior EEG Alpha Asymmetry a Trait Marker for Depression?2000 · 362 citations
  4. 4EEG Alpha Asymmetry, Depression, and Cognitive Functioning1998 · 449 citations
  5. 5Fronto–Parietal EEG asymmetry interactions predict negative attention bias: A secondary data analysis2026