Cited by 77Memory Processes and InfluencesMemory and Neural MechanismsPosttraumatic Stress Disorder Research

Modulation of naturalistic maladaptive memories using behavioural and pharmacological reconsolidation-interfering strategies: A systematic review and meta-analysis of clinical and 'sub-clinical' studies

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Walsh, Katie H., Das, Ravi K., Saladin, Michael E., Kamboj, Sunjeev K.·2018·Psychopharmacology

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Abstract

Consolidated memories can undergo enduring modification through retrieval-dependent treatments that modulate reconsolidation. This represents a potentially transformative strategy for weakening or overwriting the maladaptive memories that underlie substance use and anxiety/trauma-related disorders. However, modulation of naturalistic maladaptive memories may be limited by ‘boundary conditions’ imposed on the reconsolidation process by the nature of these memories. We conducted a systematic review and meta-analyses of behavioural and pharmacological studies examining retrieval-dependent modulation of reward- and threat-related memories in (sub) clinical substance use and anxiety/trauma, respectively. Of 4938 publications assessed for eligibility, 8 studies of substance use and 10 of anxiety (phobia)- and trauma-related symptoms were included in the meta-analyses. Overall, the findings were in the predicted direction, with most studies favouring the ‘retrieval + treatment’ condition. However, the magnitude of effects was dependent upon the nature of treatment, with pharmacological interventions showing a medium-sized effect ( g = 0.59, p = 0.03) and behavioural treatments, a relatively small effect ( g = 0.32, p = 0.10) in studies of phobia/trauma. Among studies of substance use, post-retrieval behavioural interventions yielded a larger effect ( g = 0.60, p < 0.001) relative to pharmacological treatments ( g = − 0.03, p = 0.91), with treatment type being a statistically significant moderator ( χ 2 (1) = 4.20, p = 0.04). Modification of naturalistic maladaptive memories during reconsolidation appears to be a viable treatment strategy for substance use and phobias/trauma disorders. However, high levels of heterogeneity and methodological variation limit the strength of conclusions that can be drawn from the reviewed studies at this stage.

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  • The reconsolidation hypothesis has led to interventions for several different clinical populations, with moderate levels of success.

    “An alternative to these mechanisms is provided by the reconsolidation hypothesis, which has led to interventions for several different clinical populations, with moderate levels of success [52].”

    From Memory and Forgetting (2018) · cites this paper as [52]

    The Results (Study and sample characteristics; page unavailable) describe reconsolidation-interfering interventions studied in phobia, trauma-related, and substance-use samples. The Results (Effect size for symptoms of phobia and trauma; page unavailable) report a medium aggregate effect, but the aggregate effect for substance use was small and non-significant. Thus, “moderate levels of success” overstates the findings across the different populations. (LLM, conf=0.84)

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  • Pharmacogenomic tools add a complementary layer for medication selection, with multiple blinded trials and meta-analyses showing modest yet reliable gains in response and remission, particularly when switching to genetically congruent agents, thereby enriching strata and reducing futile exposure.

    “Pharmacogenomic tools add a complementary layer for medication selection, with multiple blinded trials and meta-analyses showing modest yet reliable gains in response and remission, particularly when switching to genetically congruent agents, thereby enriching strata and reducing futile exposure [409,410].”

    From Synaptic Plasticity—Intrinsic Excitability and Antidepressant Discovery (2026) · cites this paper as [409]

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  • Studies of propranolol for memory consolidation and reconsolidation have yielded mixed results.

    “However, these studies have yielded mixed results (Walsh, Das, Saladin, & Kamboj, 2018).”

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Authors
Walsh, K. H., Das, R. K., Saladin, M. E., & Kamboj, S. K.
Affiliations
  • University College London (GB)
  • Medical University of South Carolina (US)
Corresponding author
Kamboj, Sunjeev K.
Venue
Psychopharmacology
Published
2018-08-08
Volume
235
Issue
9
Pages
2507-2527
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W2952702017
Cited by
77
References
112
Citations by year
2026: 3 · 2025: 8 · 2024: 12 · 2023: 5 · 2022: 23 · 2021: 8 · 2020: 10 · 2019: 7 · 2018: 1
FWCI
0.87
Type
journal article
Language
en
Open access
Locations
  • Psychopharmacology (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Medical Research Council (MR/M007006/1)
  • University College London (PhD Studentship)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
Keywords
memory reconsolidation, maladaptive memory, substance use disorders, anxiety disorders, phobia, trauma
MeSH terms
Memory Consolidation, Adrenergic beta-Antagonists, Animals, Anxiety Disorders, Behavior Therapy, Hormone Antagonists, Humans, Memory, Stress Disorders, Post-Traumatic, Substance-Related Disorders

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