Cognitive training to improve memory in individuals undergoing electroconvulsive therapy: Negative findings

Area of Science:

• Neuroscience
• Psychiatry
• Cognitive Psychology

Background:

• Electroconvulsive therapy (ECT) is highly effective for severe depression but can cause memory side effects.
• Cognitive training may improve memory, but its efficacy post-ECT is unstudied.

Purpose of the Study:

• To evaluate the efficacy of a novel cognitive training program, Memory Training for ECT (Mem-ECT), in mitigating memory deficits after ECT.
• To assess the impact of Mem-ECT on anterograde and retrograde memory in patients with treatment-resistant depression.

Main Methods:

• A double-blind study involving 59 patients with treatment-resistant depression undergoing ultra-brief right unilateral ECT.
• Random assignment to Mem-ECT, an active control (nonspecific mental stimulation), or treatment as usual.
• Cognitive and clinical assessments conducted before and after ECT.

Main Results:

• All groups showed improvements in global function, quality of life, depression, and self-reported memory.
• No significant differences were found between the Mem-ECT, active control, and treatment-as-usual groups.
• While verbal delayed recall declined, general retrograde and autobiographical memory remained stable across all groups.

Conclusions:

• The Mem-ECT program and active control did not demonstrate significant memory or clinical benefits over standard care.
• Further research is needed to develop effective strategies for minimizing adverse memory effects of ECT.
• These findings encourage continued efforts to improve ECT tolerability for severe depression treatment.