Retrieval-induced Forgetting Research Articles

Testing the transdiagnostic hypothesis of inhibitory control deficits in addictions: An experimental study on gambling disorder.

Background and aimsMany psychopathologies, including addictions, are characterized by inhibitory control deficits. In this regard, recent studies on substance-related disorders (SRD) have shown an impairment in the ability to inhibit potentially interfering memories, despite preserved motor inhibition. To investigate whether the same dissociation could also characterize gambling disorder (GD) in a transdiagnostic perspective, we tested both cognitive and motor inhibitory processes through dedicated tasks, for the first time in this behavioral addiction.Methods30 outpatients with GD and 30 healthy controls performed a go/no-go task addressing the integrity of motor inhibition, and the Retrieval Practice Paradigm, a task addressing the integrity of memory inhibition as indexed by the Retrieval-Induced Forgetting (RIF) effect. Self-report questionnaires assessing impulsivity were also administered.ResultsWhereas RIF was similar across the two groups, patients showed more commission errors in the go/no-go task, and higher self-rated scores of impulsivity than controls.DiscussionThe present findings suggest preserved memory inhibition and impaired motor response inhibition in GD, a pattern of inhibitory deficits opposite to that previously reported for SRD. Therefore, although both GD and SRD are characterized by altered inhibitory processing, a more fine-grained analysis revealed a specific inhibitory profile indicating vulnerability in different inhibitory components.ConclusionThe present study highlights the need to investigate the multifaceted construct of inhibition more thoroughly, using performance measures able to assess its various components. This approach would enable to both better characterize different psychopathologies and orient their treatment.

Convergence on collective memories: Central speakers and distributed remembering.

A primary interest in the psychological study of collective memory concerns the sociocognitive processes by which Central Speakers-politicians, journalists, and other public voices-may reshape the memory of groups of listeners. In 2 experiments, we examine how (a) Central Speakers may induce shared practice effects and socially shared retrieval-induced forgetting (SSRIF) for related but unmentioned items in a group of listeners, (b) how communicational remembering along a serial transmission chain can moderate this initial mnemonic influence, and (c) how listeners' relational motives toward the Central Speaker, operationalized as perceived social group membership, impact both (a) and (b). Experiment 1 shows that a Central Speaker may induce both SSRIF and shared practice effects in a group of listeners, and that, relative to noncommunicating nominal groups, communicational remembering in a looped serial transmission chain amplifies the relative inaccessibility of related but unmentioned items. In Experiment 2, we show that the Central Speaker's perceived group membership moderates the effects of subsequent communicational remembering. When ingroup, communicational remembering amplifies the Central Speaker's SSRIF, when outgroup, subsequent communicational remembering attenuates it. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

Variables affecting the school adaptation of secondary-school students who do not seek help: attachment, coping style, positivity, and prospects

ABSTRACT School refusal is a severe social issue in many countries. For helping students who experience stress, multiple social supports including school counsellors and teachers have been provided. However, these supports may not be useful for ‘non-help-seekers’ – those who do not seek help even when they have serious problems. Given the scarce research on non-help-seekers’ cognition, it is essential to identify internal factors that affect non-help-seekers’ adaptation in school. The current study examined the associations between non-help-seekers’ school adaptation and attachment, stress-coping style, and three psychological variables: trust, positivity, and prospects. Two cross-sectional studies (N = 960, 49.5% boys; N = 658, 51.8% boys, respectively) revealed the importance of attachment, a possibility of interventions to psychological factors, and the limited effect of stress coping strategies when a student’s problem is severe. Several interventions including retrieval-induced forgetting and modelling were suggested as support for non-help-seekers before their problems become dire.

EEG beta power increase indicates inhibition in motor memory

Beta power increase has been suggested to be an electrophysiological marker of response inhibition during voluntary action stopping. We examined whether beta power increase accompanies inhibition in human motor memory, focusing the phenomenon of retrieval-induced forgetting that has been assumed to be the consequence of inhibition in memory. Whereas most studies on this effect comprise word materials, a variant of the retrieval-induced-forgetting paradigm exists for examining motor memory. In the present study, we recorded scalp EEG during this motor-specific variant and examined EEG oscillatory correlates of retrieval-induced slowing of motor actions. Here, forgetting occurred in the form of significant slowing when executing motor sequences in a final recall test. Participants first learned to associate memory cues to sequential finger movements, half of which were performed with the left hand and half with the right hand. They then selectively retrieval-practiced half of the items of one hand before finally memory for all items was tested. On a behavioral level, selective retrieval practice induced slower execution of the non-retrieved items of the retrieval-practiced hand in a final memory test. On a physiological level, this retrieval-induced-slowing effect was predicted by an increase of EEG beta power during retrieval practice. The results suggest that motor retrieval-induced forgetting is a consequence of inhibition in human memory.

Does retrieving a memory insulate it against memory inhibition? A retroactive interference study

ABSTRACTSeveral recent studies suggest that an initial retrieval attempt imbues retrieved memories with special resilience against future interference and other forgetting mechanisms. Here we report two experiments examining whether memories established through initial retrieval remain subject to retrieval-induced forgetting. Using a version of a classical retroactive interference design, we trained participants on a list of A–B pairs via anticipation – constituting a form of retrieval practice. After next training participants on interfering A–C pairs, they performed 0–12 additional A–C anticipation trials. Because these trials required retrieval of A–C pairs, they should function similarly to retrieval practice in paradigms establishing retrieval-induced forgetting. We observed robust evidence that retroactive interference generalises to final memory tests involving novel, independent memory probes. Moreover, in contrast to practising retrieval of A–C items, their extra study failed to induce cue-independent forgetting of the original B items. Together, these findings substantiate the role of retrieval-related inhibitory processes in a traditional retroactive interference design. Importantly, they indicate that an initial retrieval attempt on a competitor does not abolish retrieval-induced forgetting, at least not in the context of this classic design. Although such an attempt may protect against inhibition in some circumstances, the nature of those circumstances remains to be understood.

Exploring the Potential Impact of Body Worn Cameras on Memory in Officer-Involved Critical Incidents: a Literature Review

The current paper reviews existing literature that relates to how body worn cameras might influence an officer’s memory of their interactions with the public, namely those that involve the use of force. Notably, most of this research does not come from the policing field but focuses on the impact of camera technology in other settings. Much of the available research supports the commonly held view that body worn cameras could be used to enhance memory for these interactions, particularly interactions that are complex or stressful. However, contrary to what people might expect, research also exists that suggests body worn cameras may actually have a detrimental effect on officer memory. Three major potential detriments: cognitive offloading, retrieval-induced forgetting and misinformation-type effects are highlighted. Future studies examining the impact of body worn cameras on officers’ memory are necessary. Ways forward are discussed.

State and trait effects of rumination on inhibitory processes in memory

Research has suggested that individuals high in the trait tendency to ruminate have an increased risk for the development of psychopathology. Recent literature has begun to identify how rumination affects cognitive processes in order to document mechanisms of this risk. The current report evaluated the effects of both state and trait rumination on memory processes. Seventy undergraduates selected based on high and low levels of the trait tendency to ruminate completed the retrieval inhibition task. Prior to final recall, participants were randomly assigned to engage in either a rumination or distraction task. Results found that state rumination impaired retrieval-induced forgetting, and trait rumination impaired forgetting of no longer relevant stimuli. Additional analyses suggested that self-report of shifting ability was associated with reduced inhibiting of irrelevant stimuli. These findings highlight the importance of evaluating both state and trait rumination when evaluating the effects of repetitive negative thinking on cognitive processes.

Exercise and Retrieval-Induced Forgetting

Retrieving a subset of items from memory can cause forgetting of other related items in memory, referred to as retrieval-induced forgetting (RIF). This type of forgetting (RIF) is thought to be related to working memory and executive control processes, of which are known to be influenced by acute exercise. The objective of this study was to evaluate whether acute exercise could accentuate RIF. A two-arm, parallel-group randomized controlled intervention was employed. Participants (N = 40) were randomized into one of two groups, including an experimental group (15-min of moderate-intensity exercise) and a control group (time-matched seated task). Retrieval-induced forgetting (RIF) and retrieval practice (RP) were assessed from a category-exemplar memory task. There was no significant main effect for RIF and no group by RIF interaction, suggesting that acute exercise did not alter RIF more than the control group. There was a significant main effect for RP, but there was no group by RP interaction. These RP findings align with the RIF findings, indicating that acute exercise did not alter RP more so than the control group. In conclusion, our experimental results do not provide support for an association of acute exercise on retrieval-induced forgetting or retrieval practice.

Theta oscillations show impaired interference detection in older adults during selective memory retrieval

Seemingly effortless tasks, such as recognizing faces and retrieving names, become harder as we age. Such difficulties may be due to the competition generated in memory by irrelevant information that comes to mind when trying to recall a specific face or name. It is unknown, however, whether age-related struggles in retrieving these representations stem from an inability to detect competition in the first place, or from being unable to suppress competing information once interference is detected. To investigate this, we used the retrieval practice paradigm, shown to elicit memory interference, while recording electrophysiological activity in young and older adults. In two experiments, young participants showed Retrieval-Induced Forgetting (RIF), reflecting the suppression of competing information, whereas older adults did not. Neurally, mid-frontal theta power (~4–8 Hz) during the first retrieval cycle, a proxy for interference detection, increased in young compared to older adults, indicating older adults were less capable of detecting interference. Moreover, while theta power was reduced across practice cycles in younger adults, a measure of interference resolution, older adults did not show such a reduction. Thus, in contrast with younger adults, the lack of an early interference detection signal rendered older adults unable to recruit memory selection mechanisms, eliminating RIF.

Retrieval-induced forgetting in a social context: Do the same mechanisms underlie forgetting in speakers and listeners?

Selectively retrieving details from memory can result in forgetting related information, a finding known as retrieval-induced forgetting (RIF). The effect has mostly been examined in individuals, but RIF can also be socially transmitted and arise in listeners who are exposed to a speaker's selective memory retrieval. Whether within-individual RIF (WI-RIF) in speakers and socially shared RIF (SS-RIF) in listeners arise on the basis of the same cognitive mechanisms is unclear, however. In four experiments, we assessed both WI-RIF and SS-RIF while varying final test format to examine the potential involvement of output interference, strength-based blocking, and inhibition. WI-RIF and, to a similar degree, SS-RIF were observed on cued-recall tests with and without controlled output order at test, indicating that output interference cannot account for the observed forgetting. In contrast, SS-RIF was reduced relative to WI-RIF on tests of item recognition. These findings are consistent with the view that inhibition and blocking contribute to both WI-RIF and SS-RIF, but that the contribution of inhibition is reduced in listeners relative to speakers.

The Mnemonic Consequences of Jurors' Selective Retrieval During Deliberation.

The jury is a defining component of the American criminal justice system, and the courts largely assume that the collaborative nature of jury deliberations will enhance jurors' memory for important trial information. However, research suggests that this kind of collaboration, although sometimes improving memory, can also lead to incomplete and inaccurate "collective" memories. The present research examines whether jury deliberations, where individuals collaboratively recall and discuss trial evidence to render unanimous verdicts, might shape jurors' memories through the robust phenomena of Within-Individual and Socially Shared Retrieval-Induced Forgetting (WI-RIF and SS-RIF, respectively). The results revealed no WI-RIF or SS-RIF. However, we did find evidence in the direction of Within-Individual and Socially-shared Retrieval Induced Facilitation (WI-RIFA and SS-RIFA, respectively) in speakers' and listeners' narrative and open-ended recall of evidentiary details. The present results are discussed in terms of whether jurors' goals during deliberation and the deliberation structure (e.g., six or more discussants) protect against forgetting, or whether possible methodological issues (e.g., the vast amount of information presented) eliminated WI-RIF and SS-RIF and, in turn, make drawing conclusions surrounding the mnemonic impact of jury deliberation difficult. Regardless, the present results suggest jury deliberations are quite limited in terms of how much evidence is actually discussed compared to the total of what could be discussed, and our methodology provides an ecologically valid baseline for future research to better understand the mnemonic consequences associated with jury deliberations and, in turn, jury decision making.

From A to Z? Retrieval‐induced forgetting of non‐verbal information indicates how writing systems can shape memory organisation

We investigated retrieval-induced forgetting of motor sequences in samples of Chinese participants. Retrieval-induced forgetting occurs when selective retrieval of a subset of information stored in memory causes forgetting for the non-retrieved rest. This phenomenon critically depends on the organised storage of separate categories of memory representations. In studies with participants from a Western culture (Germany), a categorization in left- and right-hand movements previously had been supported by letter stimuli based on a spatial mental representation of the Roman alphabet. The same assignment of letters from the beginning or end of the alphabet to motor sequences performed either with the left- or the right-hand did not entail retrieval-induced forgetting in the present study, however (Experiment 1). In Experiment 2, visual features of displaying to-be-learned sequences additionally supported a distinction into left and right. In Experiment 3, learning trials provided verbal category labels. The occurrence of retrieval-induced forgetting in the latter two experiments suggests language-dependent organisation of non-verbal items in memory.

Retrieval-Induced Forgetting in the Feigning Amnesia for a Crime Paradigm.

Previous studies demonstrated that, when asked to honestly provide information about a mock crime, former feigners performed worse than those who were requested to confess to this event. Thus, feigning amnesia for a mock crime undermined genuine memory for the same experience. In the present study, we examined whether retrieval-induced forgetting (RIF) underlies this memory-undermining effect. After watching a mock crime, participants had to feign amnesia or confess to having committed that crime. Feigners were given retrieval practice instructions (i.e., retrieval-practice group) or no further instructions (i.e., control group). Immediately and 1 day later, all participants had to genuinely report what they remembered about the crime. Although simulators in the retrieval-practice group recalled the largest amount of information as a positive consequence of retrieval, the ratio for crucial crime-related details was lower than that exhibited by both simulators who were given no instructions and confessors. These findings suggest that RIF might play a role in forgetting critical information in claims of crime-related amnesia. Theoretical and practical implications will be discussed.

Short- and longer-term effects of selective discussion of adolescents’ autobiographical memories

We investigated whether selective discussion leads to retrieval-induced forgetting (RIF) for early to mid-adolescents’ positive and negative autobiographical memories after delays of 5 min and 1 day. Adolescents (13–15 years of age; N = 58) completed an adapted version of the RIF paradigm for adults’ emotionally valenced autobiographical memories. Following findings that RIF occurs for children’s positive and negative memories and adults’ negative autobiographical memories only, we posed three research questions. First, would RIF occur for adolescents’ autobiographical memories after a short delay? Second, would adolescents demonstrate an RIF valence effect? Third, would any RIF findings be replicated after a longer delay? We found RIF for negative memories after both a short and longer delay. We also found RIF for positive memories, but only after the longer delay. The potential mechanisms underpinning these findings are discussed.

Context Retrieval as a Critical Component in Selective Memory Retrieval

Selective retrieval often impairs recall of nonretrieved items, a finding referred to as retrieval-induced forgetting. In this article, I review recent research showing that selective retrieval can also improve recall of other items. This research points to a critical role of context retrieval in selective memory retrieval. The concept of context retrieval, which has played a prominent role in other lines of memory research, suggests that selective retrieval can reactivate the retrieved items’ temporal context during study, facilitating recall of other items that had a similar context at study. Such facilitatory effects on recall can arise both when selective item repetition occurs via retrieval and when it occurs via restudy, which suggests a link to the reminding literature. The findings offer new perspectives for investigating and understanding the effects of selective memory retrieval.

Retrieval priming in product verification: Evidence from retrieval-induced forgetting

The conditions under which multiplication verification (3 × 6 = 12, true or false?) involves product retrieval and comparison or familiarity-based recognition judgements has not been clearly established. In two experiments examining verification of single-digit multiplication problems, we used Retrieval-Induced Forgetting (RIF), a signature of retrieval use, as an index of product retrieval in multiplication verification. In Experiment 1, 72 adults practiced multiplication either in a production format or in a verification format and then were tested on corresponding addition and control problems. The results showed RIF (i.e., slower answer production for addition problems whose multiplication counterparts had been practiced) in both the production-practice and the verification-practice groups, but RIF was stronger following true than false verification. Experiment 2 tested verification with related-false and unrelated-false products. Related-false equations produced longer RTs than unrelated false equations. Practice of true, related-false and unrelated-false multiplication equations all produced RIF of the addition counterparts but, overall, related-false multiplication equations produced relatively weak RIF. The results indicated that product retrieval mediates multiplication verification even when false answers are weak associative lures and suggest that a retrieve-and-compare process is the default strategy when false answers are at least plausible. We conclude that the presented answer in verification equations act as retrieval-priming stimuli with true equations priming correct answer retrieval and related-false answers interfering with correct answer retrieval.

Improving Memory Inhibition: A Study of Retrieval Induced Forgetting, Executive Control, and Chronic Aerobic Exercise.

Chronic aerobic exercise is being established as a way to enhance executive functions and prevent cognitive decline. In the current study, we are aiming to investigate whether chronic aerobic exercise would also modulate long-term memory retrieval under the context of the Retrieval Practice Paradigm. According to Anderson et al. (1994), the retrieval of relevant information may decrease the access to other related information inducing the failure to remember or forgetting Interestingly, it has been shown (Román et al., 2009) that this process is mediated by the level of attentional resources. In order to test if chronic aerobic exercise benefits attentional resources, we have applied the Dual Retrieval Practice Task. The purpose of this task is to evaluate the Retrieval Induced Forgetting (RIF) effect, which is supposed to index adaptive forgetting. More specifically, the Dual Retrieval Practice Task assesses the effects of memory retrieval on forgetting information directly related to the information that has been previously retrieved, but also studies the involvement of attentional resources on this type of forgetting (retrieval induced forgetting). This task alternates memory retrieval practice with an updating task in order to load attentional resources. Two groups of physically active and sedentary young participants were evaluated. The results showed that while active participants were able to show RIF despite the overload of the attentional resources, sedentary participants were not. These results are discussed in terms of the modulatory role of chronic aerobic exercise on executive control and retrieval induced forgetting.

Retrieval-Induced Forgetting in a Pentylenetetrazole-Induced Epilepsy Model in the Rat.

The selective retrieval of some information may lead to the forgetting of related, but non-retrieved information. This memory phenomenon is termed retrieval-induced forgetting (RIF). Active inhibition is thought to function to resolve interference from competing information during retrieval, which results in forgetting. Epilepsy is associated with impaired inhibitory control that contributes to executive dysfunction. The purpose of this study is to investigate whether rats in a kindling model of epilepsy demonstrate normal levels of RIF. Rats were divided into two groups: saline and kindling. Pentylenetetrazole was injected intraperitoneally until the rats kindled. RIF was tested using a modified version of the spontaneous object recognition test, consisting of a sample phase, retrieval or interference phase, and a test phase. Exploration time for each object was analyzed. RIF was demonstrated in the saline group when rats subjected to the retrieval phase failed to discriminate between the familiar object and the novel object later in the test phase. Kindled rats, on the other hand, did not suffer forgetting even when they were subjected to the retrieval phase, as they spent significantly longer times exploring the novel rather than the familiar object in the test phase. Therefore, RIF was not observed in the kindling group. These findings indicate impaired retrieval-induced forgetting in kindled rats, which may be suggestive of a deficit in the inhibitory control of memory.

A retrieval-specific mechanism of adaptive forgetting in the mammalian brain

Forgetting is a ubiquitous phenomenon that is actively promoted in many species. How and whether organisms’ behavioral goals drive which memories are actively forgotten is unknown. Here we show that processes essential to controlling goal-directed behavior trigger active forgetting of distracting memories that interfere with behavioral goals. When rats need to retrieve particular memories to guide exploration, it reduces later retention of other memories encoded in that environment. As with humans, this retrieval-induced forgetting is competition-dependent, cue-independent and reliant on prefrontal control: Silencing the medial prefrontal cortex with muscimol abolishes the effect. cFos imaging reveals that prefrontal control demands decline over repeated retrievals as competing memories are forgotten successfully, revealing a key adaptive benefit of forgetting. Occurring in 88% of the rats studied, this finding establishes a robust model of how adaptive forgetting harmonizes memory with behavioral demands, permitting isolation of its circuit, cellular and molecular mechanisms.

Psychological perspectives on implicit regularization: A model of retrieval-induced forgetting (RIF)

While learning theory suggests different forms of explicit regularization to guarantee small generalization error, deep learning models may introduce some sort of implicit regularization that tries to find a solution with small complexity, but neither does not include a penalty term nor does not directly modifies the optimization method. Recent research in deep learning pointed to the importance of proper understanding the underlying mechanisms of implicit regularization to elucidate the nature of generalization ability. This study is aimed at looking at implicit regularization from a psychological perspective with regard to the phenomena of retrieval-induced forgetting (RIF). The findings of this study may greatly assist in solving the major problems of proper understanding the deep learning procedure, improving the generalization ability, and the capacity control.