scholarly journals Reducing False Recognition in the Deese-Roediger/McDermott Paradigm: Related Lures Reveal How Distinctive Encoding Improves Encoding and Monitoring Processes

2020 ◽  
Vol 11 ◽  
Author(s):  
Mark J. Huff ◽  
Glen E. Bodner ◽  
Matthew R. Gretz
Keyword(s):  
Signal Detection ◽  
Recognition Test ◽  
Test Generation ◽  
False Recognition ◽  
Correct Recognition ◽  
Control Group ◽  
Drm Paradigm ◽  
Generation Task ◽  
Retrieval Processes ◽  
Memory Monitoring

In the Deese-Roediger/McDermott (DRM) paradigm, distinctive encoding of list items typically reduces false recognition of critical lures relative to a read-only control. This reduction can be due to enhanced item-specific processing, reduced relational processing, and/or increased test-based monitoring. However, it is unclear whether distinctive encoding reduces false recognition in a selective or global manner. To examine this question, participants studied DRM lists using a distinctive item-specific anagram generation task and then completed a recognition test which included both DRM critical lures and either strongly related lures (Experiment 1) or weakly related lures (Experiment 2). Compared to a read-control group, the generate groups showed increased correct recognition and decreased false recognition of all lure types. We then estimated the separate contributions of encoding and retrieval processes using signal-detection indices. Generation improved correct recognition by both increasing encoding of memory information for list words and by increasing memory monitoring at test. Generation reduced false recognition by reducing the encoding of memory information and by increasing memory monitoring at test. The reduction in false recognition was equivalent for critical lures and related lures, indicating that generation globally reduces the encoding of related non-presented items at study (not just critical lures), while globally increasing list-theme-based monitoring at test.

EXPRESS: Drawing Individual Images Benefits Recognition Accuracy in the DRM Paradigm

2021 ◽  
pp. 174702182110564
Author(s):  
Jacob Namias ◽  
Mark Huff ◽  
Allison Smith ◽  
Nicholas Maxwell
Keyword(s):  
Signal Detection ◽  
False Memory ◽  
False Recognition ◽  
Recognition Accuracy ◽  
Control Group ◽  
Control Task ◽  
Drm Paradigm ◽  
Memory Accuracy ◽  
Reduction Experiment ◽  
Drawing Task

We examined the effects of drawing on correct and false recognition within the Deese/Roediger-McDermott (DRM) false memory paradigm. In Experiment 1, we compared drawing of a word’s referent using either a standard black pencil or colored pencils relative to a read-only control group. Relative to reading, drawing in either black or colored pencil similarly boosted correct recognition and reduced false recognition. Signal-detection analyses indicated that drawing reduced the amount of encoded memory information for critical lures and increased monitoring, indicating that both processes contributed to the false recognition reduction. Experiment 2 compared drawing of individual images of DRM list items relative to drawing integrated images using sets of DRM list items. False recognition was lower for drawing of individual images relative to integrated images—a pattern that reflected a decrease in encoded memory information but not monitoring. Therefore, drawing individual images improves memory accuracy in the DRM paradigm relative to a standard read-control task and an integrated drawing task, which we argue is due to the recruitment of item-specific processing.

Item-specific and relational processing both improve recall accuracy in the DRM paradigm

2018 ◽  
Vol 72 (6) ◽  
pp. 1493-1506 ◽  
Author(s):  
Mark J Huff ◽  
Glen E Bodner
Keyword(s):  
Free Recall ◽  
False Recognition ◽  
Correct Recognition ◽  
Relational Processing ◽  
Drm Paradigm ◽  
Recall Accuracy ◽  
Relational Encoding ◽  
Task Difference

Using the Deese–Roediger–McDermott (DRM) paradigm, Huff and Bodner found that both item-specific and relational variants of a task improved correct recognition, but only the item-specific variants reduced false recognition, relative to a read-control condition. Here, we examined the outcome pattern when memory was tested using free recall, using the same item-specific versus relational task variants across three experiments as our previous study (processing instructions, pleasantness ratings, anagram generation). The outcome pattern in recall was similar to recognition, except relational processing at study actually reduced the DRM illusion, though not as much as item-specific processing. To reconcile this task difference, we suggest that the memory information laid down during relational encoding enhances the familiarity of the critical items at test. To the extent that familiarity is used less as a basis for responding in free recall than in recognition, relational processing ironically reduces rather than increases the DRM illusion in recall.

scholarly journals Irrelevant background context decreases mnemonic discrimination and increases false memory

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mihály Racsmány ◽  
Dorottya Bencze ◽  
Péter Pajkossy ◽  
Ágnes Szőllősi ◽  
Miklós Marián
Keyword(s):  
Recognition Test ◽  
False Recognition ◽  
Pattern Separation ◽  
Hippocampal Function ◽  
Memory Research ◽  
Early Dementia ◽  
Similar Information ◽  
Behavioral Score ◽  
The Cost ◽  
Background Context

AbstractOne of the greatest commonplaces in memory research is that context improves recall and enhances or leaves recognition intact. Here we present results which draw attention to the fact that the reappearance of irrelevant and unattended background contexts of encoding significantly impairs memory discrimination functions. This manuscript presents the results of two experiments in which participants made indoor/outdoor judgements for a large number of object images presented together with individual, irrelevant and presumably unattended background scenes. On a subsequent unexpected recognition test participants saw the incidentally encoded target objects, visually similar lures or new foil objects on the same or new background scenes. Our results showed that although the reappearance of the background scene raised the hit rate for target objects, it decreased mnemonic discrimination, a behavioral score for pattern separation, a hippocampal function that is affected in early dementia. Furthermore, the presence of the encoded background scene at the recognition test increased the false recognition of lure objects, even when participants were explicitly instructed to neglect the context scene. Altogether these results gave evidence that if context increases recognition hits for target memories, it does so at the cost of increasing false recognition and diminished discriminability for similar information.

scholarly journals Effect of musical training on auditory memory

2021 ◽  
Vol 31 (Supplement_2) ◽  
Author(s):  
Cátia Costa ◽  
Cristina Nazaré
Keyword(s):  
Working Memory ◽  
Pattern Recognition ◽  
Cognitive Development ◽  
Recognition Test ◽  
Musical Training ◽  
Auditory Memory ◽  
Control Group ◽  
Musical Practice ◽  
The Mean ◽  
Memory Pattern

Abstract Background Musical practice leads to cognitive development, requiring the activation of several processing mechanisms that are based on encoding and storing sounds through memory. The objective was to evaluate the auditory memory (ability to recognize tonal patterns) in musicians and non-musicians, comparing their performance. Methods Two groups with normal hearing and aged between 17 and 18 years old were compared, one of musicians (N = 14, with average of 8 years of musical training) and a control group (N = 14). Pure tone audiogram and an auditory working memory/pattern recognition test of non-verbal sounds (tonal) were performed. The participant heard 2 consecutive sequences of 6 tonal sounds each and had to say whether they were the same or different from each other. In total 30 pairs of sequences are presented (binaurally). Results The mean of percentage of correct responses in the memory/pattern recognition test was higher in musician’s group than in control group with statistically significant differences between groups (P = 0.002). The difference between the mean of percentage of correct responses in each group was 11.44%. Conclusions The musicians present better auditory memory/recognition of non-verbal (tonal) sounds in relation to the non-musicians, which points to the effectiveness of musical practice in the cognitive development of working memory and recognition of sound patterns. This study, according to others in the field, shows that musical training improves memory and auditory skills, which are known to be fundamental to the academic success of young people in this age group.

scholarly journals When True Recognition Suppresses False Recognition: Evidence from Amnesic Patients

1998 ◽  
Vol 10 (6) ◽  
pp. 668-679 ◽  
Author(s):  
Daniel L. Schacter ◽  
Mieke Verfaellie ◽  
Michael D. Anes ◽  
Carrie Racine
Keyword(s):  
Episodic Memory ◽  
Signal Detection ◽  
Study List ◽  
False Recognition ◽  
Present Experiment ◽  
Healthy Controls ◽  
Repeated Presentation ◽  
Control Subjects ◽  
Insight Into ◽  
Normal Controls

False recognition occurs when people mistakenly claim that a novel item is familiar. After studying lists of semantically related words, healthy controls show extraordinarily high levels of false recognition to nonstudied lures that are semantic associates of study list words. In previous experiments, we found that both Korsakoff and non-Korsakoff amnesic patients show reduced levels of false recognition to semantic associates, implying that the medial temporal/diencephalic structures that are damaged in amnesic patients are involved in the encoding and/or retrieval of information that underlies false recognition. These data contrast with earlier results indicating greater false recognition in Korsakoff amnesics than in control subjects. The present experiment tests the hypothesis that greater or lesser false recognition of semantic associates in amnesic patients, relative to normal controls, can be demonstrated by creating conditions that are more or less conducive to allowing true recognition to suppress false recognition. With repeated presentation and testing of lists of semantic associates, control subjects and both Korsakoff and non-Korsakoff amnesics showed increasing levels of true recognition across trials. However, control subjects exhibited decreasing levels of false recognition across trials, whereas Korsakoff amnesic patients showed increases across trials and non-Korsakoff amnesics showed a fluctuating pattern. Consideration of signal detection analyses and differences between the two types of amnesic patients provides insight into how mechanisms of veridical episodic memory can be used to suppress false recognition.

scholarly journals Lighter compared to deeper isoflurane anaesthesia can affect recognition memory in male C57BL/6 mice

2019 ◽  
Author(s):  
Jorge M Ferreira ◽  
Ana M Valentim
Keyword(s):  
Object Recognition ◽  
Spatial Memory ◽  
Recognition Test ◽  
Familiar Object ◽  
Control Group ◽  
Male Mice ◽  
Object Recognition Test ◽  
Isoflurane Anaesthesia ◽  
Novel Object ◽  
Different Depths

AbstractConcerns have been raised about how deeply patients are anaesthetized, and the effects that different depths of anaesthesia may have after recovery. In order to study the anaesthetic drugs per se, and to eliminate the effect of clinical variables, several animal studies have been published. Isoflurane induced transient deficits on spatial memory at low concentrations, affecting the hippocampus. However, the influence of different concentrations of isoflurane on non-spatial memory still needs clarification. Thus, our aim was to study the effects of different depths of anaesthesia (1% and 2% isoflurane) on a non-spatial memory task, the object recognition test, in C57BL/6 adult mice.Twenty-eight 2-month-old C57BL/6 male mice were habituated to the test arena of the object recognition test for 10 min each day over 2 days before anaesthesia. Mice were then randomly allocated in different treatment groups: 1% or 2%, anaesthetized with 1% or 2% of isoflurane, respectively, for 1 h or the control group, which was not anaesthetised. Twenty-four hours after anaesthesia, the animals were placed in an arena with two identical objects and allowed to explore for 10 min-Sample Trial. One hour later, mice were allowed to explore the arena for 10 min in the presence of one of the objects presented in the previous trial (familiar object) and a novel object - Choice Trial. The time spent exploring each object was evaluated by a blinded analysis. The recognition of one object as familiar was detected based on a higher level of exploration of the novel object.Animals that were anaesthetized previously with 2% isoflurane performed at control levels, indicating the recognition of a familiar object in the object recognition task; this contrasted with the results of the group that was anaesthetized with 1% isoflurane.Lighter (1%) rather than deeper (2%) isoflurane anaesthesia may affect non-spatial memory in C57BL/6 male mice. Our results raise awareness of the need for careful consideration of the depth of anaesthesia used, especially the use of light isoflurane anaesthesia, which is often chosen to provide animal immobilization during non-invasive procedures.

The benefit (and cost) of drawing as an encoding strategy

2019 ◽  
Vol 73 (2) ◽  
pp. 199-210
Author(s):  
Melissa E Meade ◽  
Michael D Klein ◽  
Myra A Fernandes
Keyword(s):  
False Alarm ◽  
False Memory ◽  
Recognition Test ◽  
Mental Imagery ◽  
Side Effect ◽  
Contextual Information ◽  
Drm Paradigm ◽  
Related Information ◽  
Object Features ◽  
Encoding Strategy

Drawing, as an encoding strategy for to-be-remembered words, has previously been shown to provide robust memory benefits. In the current study, we investigated the effect of drawing on false memory endorsements during a recognition test. We found that while drawing led to higher hit rates relative to writing (Experiment 1) and creating visual mental imagery (Experiment 2), it also led to higher false alarm (FA) rates to critical lures in a variant of the Deese–Roediger–McDermott (DRM) paradigm. When compared with an encoding strategy requiring listing of object features (Experiment 3), drawing led to a lower FA rate. We suggest that drawing enhances memory by promoting recollection of rich visual contextual information during retrieval, and this leads to the unintended side effect of increasing FA rates to related information.

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