Electroconvulsive therapy (ECT) is the most effective treatment of major depression, but autobiographical memory loss may limit its use. Despite previous attempts to synthesise the literature, the nature of autobiographical memory loss after ECT is still debated.

To provide an overview of the effect of ECT on autobiographical memory in patients with depression and explore whether the effect is temporary or permanent. Furthermore, we wanted to analyse if ECT parameters or clinical information are associated with this effect.

PubMed, EMBASE, PsycINFO and Web of Science databases were searched on 26 January 2024. We included longitudinal studies measuring autobiographical memory before and after ECT in patients with depression compared to patients with depression receiving other treatment or healthy controls. Synthesis approach was a meta-analysis. PROSPERO ID: CRD42021267901.

Nine studies were included (432 patients, 173 controls). At post-ECT, we found that ECT patients had larger autobiographical memory loss than controls (standardised mean difference (SMD) = 0.55; 95% CI = 0.35–0.75). Right unilateral (RUL) ECT entailed a small effect on autobiographical memory (SMD = 0.32; 95% CI = 0.06–0.57), while bilateral ECT yielded a large effect (SMD = 0.82; 95% CI = 0.49–1.15). Higher age was associated with smaller effect. Autobiographical memory was stable at long-term follow-up.

The studies suggest that ECT causes autobiographical memory loss in patients with depression. Results also suggest that lost memories are not regained. Furthermore, results support that RUL ECT is less detrimental to autobiographical memory. Strangely, a higher age might mitigate the autobiographical memory loss. Our findings are limited by studies being mainly observational and generally consisting of small sample sizes. Future studies should prioritise long-term follow-up assessments of autobiographical memory.

Long-term forgetting rates may be more sensitive for detecting memory decrements compared to short-delay memory assessments (e.g., after 20-30 minutes). To date, much research has been performed on accelerated long-term forgetting (ALF) in epilepsy patients, but research in other patient groups is lacking. ALF may be promising in the field of cerebrovascular disease, as many of these patients experience cognitive complaints, yet do not show impaired performances on neuropsychological assessments.

Here, I will present empirical findings on ALF in individuals after a TIA/minor stroke (n=30) and after stroke (n=91) using short- (20-30 min) and long-delay (1-week) memory testing.

After TIA/minor stroke, short-delay (2030 min) memory testing was unimpaired, but 1-week delayed testing showed an impaired performance compared to stroke-free controls. In the stroke group, ALF was present in 17% of the patients, compared to stroke-free controls, but more prevalent than rapid forgetting after short-delay memory testing.

ALF is present in patients with cerebrovascular disease, despite normal acquisition rates. The relation with neuroimaging findings and the clinical relevance of these results will be discussed.

Accelerated long-term forgetting (ALF) has been reported in healthy older individuals, and is a possible early marker for risk of developing Alzheimer’s disease (AD). The Verbal Associative Learning & Memory Test (VALMT; McGibbon & Jansari, 2013) addresses methodological weaknesses in existing clinical tests and has detected ALF in epilepsy within an hour. We used VALMT to investigate learning and forgetting in healthy older participants.

Older (60-69yrs) and Younger (19-31yrs) participants were compared. Using VALMT, unrelated word-pairs were learned to criterion, then cued-recall was tested at delays of 5, 30 and 55 minutes. Unique pairs were tested at each delay. Subjective memory complaints data were gathered, and the Wechsler Memory Scale Logical Memory test (WMS-LM; a standard clinical measure) was administered.

VALMT identified a significant difference in delayed recall between Younger and Older groups by 55 minutes (d = 1.32). While 'fast-learning’ Older participants scored similarly to Younger participants, 'slow-learning’ Older participants were impaired at all delays. Forgetting rates suggested degradation of memory starts during early synaptic consolidation rather than later system-level consolidation. Increased subjective memory complaints were associated with reduced VALMT scores. By contrast, WMS-LM failed to identify significant differences between any groups, and did not correlate with memory complaints.

We conclude VALMT may be better able than WMS-LM to identify subtle impairments in healthy older adults within a single clinical visit, and VALMT results better reflect subjective experience. Older slow-learners forget faster and report more subjective memory complaints, which may indicate a group at risk of developing AD.

Health providers frequently probe patients’ recall of current and/or remote news items to determine the extent of memory loss. Impaired memory for transient events (i.e., in the news for a circumscribed time) may provide information regarding the onset of cognitive impairment. We utilized the Transient News Events Test (TNET) to explore how memory changes over time in older adults with cognitive impairment (CI) and non-cognitively impaired (NCI) individuals. We hypothesized that CI individuals would demonstrate reduced memory for transient events. We investigated the role of semantic and episodic memory on TNET performance.

Participants completed the TNET as part a comprehensive neuropsychological evaluation. Analyses included t tests to evaluate group differences for TNET performance, and correlations between TNET and neuropsychological measures, including episodic and semantic memory tests.

NCI adults demonstrated better memory than CI participants for TNET items. The NCI and CI groups did not differ regarding memory for remote items; however, CI participants had worse memory for recent items. There was a significant association between TNET performance and capacity for episodic and semantic memory in people with CI. In the NCI group, the TNET was associated only with episodic memory.

Findings support the use of news events to assess remote memories in older adults. Novel remote memory measures broaden the scope of memory assessment far beyond what is feasible within traditional neuropsychological assessment and provide insight into the onset of memory changes. Results enhance understanding of memory decline in older adults with cognitive impairment.

The intricacies and difficulties in measuring forgetting rates, both in healthy participants and in clinical patients, have been intensively investigated since the 1970s. In recent years, there has been a revival of interest in ‘long-term’ forgetting rates, particularly in transient epileptic amnesia (TEA) and temporal lobe epilepsy (TLE), and some ‘old’ lessons have had to be re-learned.

Studies of long-term forgetting in patient groups will be reviewed, together with variables that influence different patterns of forgetting. In particular, I will report findings from two recent studies of TLE, as well as other related investigations.

Studies indicate that an impairment in memory ‘acquisition’, rather than differences in ‘long-term’ forgetting, appear critical in amnesic disorders, sometimes associated with differences in ‘early’ forgetting on recall memory measures only. An exception may be the effect of seizures, whether in consequence of epilepsy or ECT, which sometimes, but not always, appears to accelerate forgetting rates. Another important finding has been the pronounced variability in forgetting rates, both between individuals within a patient group and within individuals tested on separate occasions, making inferences from single-case studies problematical.

Findings will be interpreted in the light of these observations.

Alcohol amnesia and palimpsests belong to understudied areas in addictology concerning the pathogenesis, risk factors, and development of effective integrated, targeted modalities of therapy, prevention, and after-treatment care.

Development of a new integrated, pathogenetically grounded approach to the emergency and routine therapy for immediate and long-term consequences of amnestic alcohol intoxication.

Modern complex clinical-psychopathological, pathopsychological, laboratory, electrophysiological, biochemical examination; method of analogues and prototype analytical examination.

Integrated anti-amnestic pharmacotherapeutic triad: Noobut IC (Phenibut) orally, before meals, for 6 days, twice a day: 250 mg in the morning, 500 mg at night, within days 7-14 250 mg twice: in the morning and at night; Vitaxon 2.0 ml daily, intramuscularly, No10 totally; ozone therapy for 10 days (ozone dissolved in olive oil, 6 mg/100 ml concentration), 5 ml orally 3 times a day. Complex therapy is concurrent with synergistic psychotherapeutic potentiation. Supportive anti-relapse prevention of alcohol-induced amnesia, palimpsests with Noobut IC: 1 tablet (250 mg) orally in the morning for 2 months. The pathogenetic support of the pharmacotherapeutic triad in treatment for alcohol addiction, comorbid with amnestic disorders, is pathogenetically focused on pharmacological properties of each component of the triad and their potentiating effects, involving most pathogenetic mechanisms of this disease.

Relieving and prophylactic efficacy of the proposed pharmacological triad (Noobut, Vitaxon, ozone and concurrent psychotherapeutic potentiation) is proven by the statistical reliability method and illustrated by clinical examples of patient-specific research.

Wearable cameras have been shown to improve memory in people with hippocampal amnesia and Alzheimer's disease. It is not known whether this benefit extends to people with amnesia of complex or uncertain origin.

This case study examined the effect of wearable camera use on memory and occupational performance in a patient with memory loss and complex mental health problems following a severe neurological incident. With the help of his occupational therapist (OT), Mr A used a wearable camera to record a series of eight personally significant events over a 6-week period. During visits from his OT, Mr A was asked to report what he could remember about the events, both before (baseline) and during the review of time-lapsed photographs captured automatically by the camera.

The results showed striking improvements in recall while reviewing the photographs, relative to baseline recall, but the additional details recalled during review did not appear to be maintained at later tests, after several days. Across the study period, there were moderate increases in occupational performance, measured using the Canadian Occupational Performance Measure. However, after the study period ended, Mr A ceased to use the wearable camera due to technological difficulty.

There was a clear benefit of wearable camera use, but the real-world impact of the technology was limited by the complexity of the system. The results of the study are discussed alongside novel clinical insights and suggestions for developing wearable camera support systems that can be used independently by people with memory problems.

There have been reports of long-term subjective memory worsening after electroconvulsive therapy (ECT).

To study the prevalence and risk factors of long-term subjective memory worsening among patients receiving ECT in routine clinical practice.

Patients (n = 535, of whom 277 were included in the final analysis) were recruited from eight Swedish hospitals. Participants' subjective memory impairment was assessed before ECT and a median of 73 days after ECT using the memory item from the Comprehensive Psychopathological Rating Scale. Participants also rated their pre-ECT expectations and post-ECT evaluations of the effect of ECT on memory on a 7-point scale. We used ordinal regression to identify variables associated with subjective memory worsening and negative evaluations of the effect of ECT on memory.

Comparisons of pre- and post-ECT assessments showed that subjective memory worsened in 16.2% of participants, remained unchanged in 52.3% and improved in 31.4%. By contrast, when asked to evaluate the effect of ECT on memory after treatment 54.6% reported a negative effect. Subjective memory worsening was associated with negative expectations before ECT, younger age and shorter duration of follow-up.

Although subjective memory improved more often than it worsened when assessed before and after ECT, a majority of patients reported that ECT had negative effects on their memory when retrospectively asked how ECT had affected it. This might suggest that some patients attribute pre-existing subjective memory impairment to ECT. Clinicians should be aware that negative expectations are associated with subjective worsening of memory after ECT.