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Smith SM, Beda Z. Forgetting fixation with context change. JOURNAL OF APPLIED RESEARCH IN MEMORY AND COGNITION 2020. [DOI: 10.1016/j.jarmac.2019.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Larzabal C, Tramoni E, Muratot S, Thorpe SJ, Barbeau EJ. Extremely long-term memory and familiarity after 12 years. Cognition 2018; 170:254-262. [PMID: 29096326 PMCID: PMC5730537 DOI: 10.1016/j.cognition.2017.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 10/13/2017] [Accepted: 10/17/2017] [Indexed: 11/30/2022]
Abstract
In 2006 Mitchell demonstrated that implicit memory was robust to decay. He showed that the ability to identify fragments of pictures seen 17 years before was significantly higher than for new stimuli. Is this true only for implicit memory? In this study, we tested whether explicit memory was still possible for drawings (n = 144) that had been presented once or three times, two seconds each time on average, approximately 12 years earlier. Surprisingly, our data reveal that our participants were able to recognize pictures above chance level. Preserved memory was mainly observed in the youngest subjects, for stimuli seen three times. Despite the fact that confidence judgments were low, reports suggest that recognition could be based on a strong sense of familiarity. These data extend Mitchell's findings and show that familiarity can also be robust to decay.
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Affiliation(s)
- Christelle Larzabal
- Université de Toulouse, UPS, Centre de Recherche Cerveau et Cognition, France; CNRS, CerCo, Toulouse, France.
| | - Eve Tramoni
- INSERM U 751, Marseille, France; Aix-Marseille Université, Faculté de Médecine, Marseille, France
| | - Sophie Muratot
- Université de Toulouse, UPS, Centre de Recherche Cerveau et Cognition, France; CNRS, CerCo, Toulouse, France
| | - Simon J Thorpe
- Université de Toulouse, UPS, Centre de Recherche Cerveau et Cognition, France; CNRS, CerCo, Toulouse, France
| | - Emmanuel J Barbeau
- Université de Toulouse, UPS, Centre de Recherche Cerveau et Cognition, France; CNRS, CerCo, Toulouse, France
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Parker A, Powell D, Dagnall N. Effects of Saccade Induced Retrieval Enhancement on conceptual and perceptual tests of explicit & implicit memory. Brain Cogn 2017; 121:1-10. [PMID: 29275124 DOI: 10.1016/j.bandc.2017.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/21/2017] [Accepted: 12/13/2017] [Indexed: 11/28/2022]
Abstract
The effects of saccadic horizontal (bilateral) eye movements upon tests of both conceptual and perceptual forms of explicit and implicit memory were investigated. Participants studied a list of words and were then assigned to one of four test conditions: conceptual explicit, conceptual implicit, perceptual explicit, or perceptual implicit. Conceptual tests comprised category labels with either explicit instructions to recall corresponding examples from the study phase (category-cued recall), or implicit instructions to generate any corresponding examples that spontaneously came to mind (category-exemplar generation). Perceptual tests comprised of word-fragments with either explicit instructions to complete these with study items (word-fragment-cued recall), or implicit instructions to complete each fragment with the first word that simply 'popped to mind' (word-fragment completion). Just prior to retrieval, participants were required to engage in 30 s of bilateral vs. no eye movements. Results revealed that saccadic horizontal eye movements enhanced performance in only the conceptual explicit condition, indicating that Saccade-Induced Retrieval Enhancement is a joint function of conceptual and explicit retrieval mechanisms. Findings are discussed from both a cognitive and neuropsychological perspective, in terms of their potential functional and neural underpinnings.
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Affiliation(s)
- Andrew Parker
- Manchester Metropolitan University, Department of Psychology, 53 Bonsall Street, Manchester M15 6GX, United Kingdom.
| | - Daniel Powell
- Manchester Metropolitan University, Department of Psychology, 53 Bonsall Street, Manchester M15 6GX, United Kingdom
| | - Neil Dagnall
- Manchester Metropolitan University, Department of Psychology, 53 Bonsall Street, Manchester M15 6GX, United Kingdom
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Abstract
In this review, we present a survey on Korsakoff's syndrome (KS), a residual syndrome in patients who suffered from a Wernicke encephalopathy (WE) that is predominantly characterized by global amnesia, and in more severe cases also by cognitive and behavioral dysfunction. We describe the history of KS and its definition, its epidemiology, and the lack of consensus criteria for its diagnosis. The cognitive and behavioral symptoms of KS, which include anterograde and retrograde amnesia, executive dysfunction, confabulation, apathy, as well as affective and social-cognitive impairments, are discussed. Moreover, recent insights into the underlying neurocognitive mechanisms of these symptoms are presented. In addition, the evidence so far on the etiology of KS is examined, highlighting the role of thiamine and alcohol and discussing the continuity hypothesis. Furthermore, the neuropathology of KS is reviewed, focusing on abnormalities in the diencephalon, including the mammillary bodies and thalamic nuclei. Pharmacological treatment options and nonpharmacological interventions, such as those based on cognitive rehabilitation, are discussed. Our review shows that thiamine deficiency (TD) is a crucial factor in the etiology of KS. Although alcohol abuse is by far the most important context in which TD occurs, there is no convincing evidence for an essential contribution of ethanol neurotoxicity (EN) to the development of WE or to the progression of WE to KS. Future research on the postmortem histopathological analysis of brain tissues of KS patients is crucial for the advancement of our knowledge of KS, especially for associating its symptoms with lesions in various thalamic nuclei. A necessary requirement for the advancement of studies on KS is the broad acceptance of a comprehensive definition and definite diagnostic criteria. Therefore, in this review, we propose such a definition of KS and draft outlines for prospective diagnostic criteria.
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Affiliation(s)
- Nicolaas Jm Arts
- Centre of Excellence for Korsakoff and Alcohol-Related Cognitive Disorders, Vincent van Gogh Institute for Psychiatry, Venray.,Neuropsychiatry Center Thalamus, Institution for Integrated Mental Health Care Pro Persona, Wolfheze
| | - Serge Jw Walvoort
- Centre of Excellence for Korsakoff and Alcohol-Related Cognitive Disorders, Vincent van Gogh Institute for Psychiatry, Venray
| | - Roy Pc Kessels
- Centre of Excellence for Korsakoff and Alcohol-Related Cognitive Disorders, Vincent van Gogh Institute for Psychiatry, Venray.,Department of Neuropsychology and Rehabilitation Psychology, Donders Institute for Brain, Cognition and Behaviour, Radboud University.,Department of Medical Psychology, Radboud University Medical Center, Nijmegen, the Netherlands
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Abstract
Individuals who saw pictures for 1 to 3 s in the laboratory were tested 17 years later by mail. Identification rates were significantly higher for fragments from these previously exposed targets than for novel fragments, whereas the same stimuli evoked no differences in control groups that had not been previously exposed to the pictures. Priming—the memorial advantage conferred by prior perceptual experience—was stable over the years (r = .51). Priming was dissociated from episodic memory, in that it was present even in subjects who reported no conscious recollection of their participation in the original laboratory session. These findings suggest that the perceptual representation system is an invulnerable memory system functioning below conscious awareness.
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Isarida TK, Kubota T, Nakajima S, Isarida T. Reexamination of mood-mediation hypothesis of background-music-dependent effects in free recall. Q J Exp Psychol (Hove) 2016; 70:533-543. [PMID: 26821817 DOI: 10.1080/17470218.2016.1138975] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The present study reexamined the mood-mediation hypothesis for explaining background-music-dependent effects in free recall. Experiments 1 and 2 respectively examined tempo- and tonality-dependent effects in free recall, which had been used as evidence for the mood-mediation hypothesis. In Experiments 1 and 2, undergraduates (n = 75 per experiment) incidentally learned a list of 20 unrelated words presented one by one at a rate of 5 s per word and then received a 30-s delayed oral free-recall test. Throughout the study and test sessions, a piece of music was played. At the time of test, one third of the participants received the same piece of music with the same tempo or tonality as at study, one third heard a different piece with the same tempo or tonality, and one third heard a different piece with a different tempo or tonality. Note that the condition of the same piece with a different tempo or tonality was excluded. Furthermore, the number of sampled pieces of background music was increased compared with previous studies. The results showed neither tempo- nor tonality-dependent effects, but only a background-music-dependent effect. Experiment 3 (n = 40) compared the effects of background music with a verbal association task and focal music (only listening to musical selections) on the participants' moods. The results showed that both the music tempo and tonality influenced the corresponding mood dimensions (arousal and pleasantness). These results are taken as evidence against the mood-mediation hypothesis. Theoretical implications are discussed.
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Affiliation(s)
- Toshiko K Isarida
- a Shizuoka College , Shizuoka Prefectural University , Shizuoka , Japan
| | - Takayuki Kubota
- b Faculty of Informatics , Shizuoka University , Hamamatsu , Japan
| | - Saki Nakajima
- b Faculty of Informatics , Shizuoka University , Hamamatsu , Japan
| | - Takeo Isarida
- b Faculty of Informatics , Shizuoka University , Hamamatsu , Japan
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Perlman A, Hoffman Y, Tzelgov J, Pothos EM, Edwards DJ. The notion of contextual locking: Previously learnt items are not accessible as such when appearing in a less common context. Q J Exp Psychol (Hove) 2015; 69:410-31. [PMID: 26059783 DOI: 10.1080/17470218.2015.1054846] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We examined the effect of context on the learning of spatial coding in four experiments. Two partially overlapping sets of stimuli, which had the very same stimulus-response spatial coding, were presented in unique contexts. Results show contextual locking-that is, response times to the very same item in a more common context (80%) were significantly shorter than those in a less common context (20%). Contextual locking was obtained both when the context was more salient (Experiments 1 and 2) and less salient (Experiments 3 and 4). In addition, results were obtained even when contextualization seemed less necessary (Experiments 2 and 4). Binding of information to context is discussed in relation to chunking, transfer effects, and practical applications pertaining to professional training.
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Affiliation(s)
- Amotz Perlman
- a Department of Management , Bar-Ilan University , Ramat-Gan , Israel
| | - Yaakov Hoffman
- b Interdisciplinary Department of Social Sciences , Bar Ilan University , Ramat-Gan , Israel
| | - Joseph Tzelgov
- c Department of Psychology , Ben-Gurion University of the Negev and Department of Psychology, Achva Academic College , Beer Sheva , Israel
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Kutta TJ, Kaschak MP. Changes in task-extrinsic context do not affect the persistence of long-term cumulative structural priming. Acta Psychol (Amst) 2012; 141:408-14. [PMID: 23103416 DOI: 10.1016/j.actpsy.2012.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 09/06/2012] [Accepted: 09/07/2012] [Indexed: 10/27/2022] Open
Abstract
We present two experiments exploring the role of extrinsic memory factors (i.e., factors that are extrinsic to the primary task that is being performed) and intrinsic memory factors (i.e., factors that are intrinsic to the primary task being completed) in the persistence of cumulative structural priming effects. Participants completed a two-phase experiment, where the first phase established a bias toward producing either the double object or prepositional object construction, and the second phase assessed the effects of this bias. Extrinsic memory factors were manipulated by having participants complete the two phases of the study in the same or different locations (physical context change) or while watching the same or different videos (video context change). Participants completed the second phase of the study 10 min after the first phase of the study in Experiment 1, and after a delay of 1 week in Experiment 2. Results suggest that the observed structural priming effects were not affected by manipulations of extrinsic memory factors. These data suggest that explicit memory does not play a large role in the long-term persistence of cumulative structural priming effects.
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Fama R, Pitel AL, Sullivan EV. Anterograde episodic memory in Korsakoff syndrome. Neuropsychol Rev 2012; 22:93-104. [PMID: 22644546 PMCID: PMC4724416 DOI: 10.1007/s11065-012-9207-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 05/09/2012] [Indexed: 12/22/2022]
Abstract
A profound anterograde memory deficit for information, regardless of the nature of the material, is the hallmark of Korsakoff syndrome, an amnesic condition resulting from severe thiamine (vitamin B1) deficiency. Since the late nineteenth century when the Russian physician, S. S. Korsakoff, initially described this syndrome associated with "polyneuropathy," the observed global amnesia has been a primary focus of neuroscience and neuropsychology. In this review we highlight the historical studies that examined anterograde episodic memory processes in KS, present a timeline and evidence supporting the myriad theories proffered to account for this memory dysfunction, and summarize what is known about the neuroanatomical correlates and neural systems presumed affected in KS. Rigorous study of KS amnesia and associated memory disorders of other etiologies provide evidence for distinct mnemonic component processes and neural networks imperative for normal declarative and nondeclarative memory abilities and for mnemonic processes spared in KS, from whence emerged the appreciation that memory is not a unitary function. Debate continues regarding the qualitative and quantitative differences between KS and other amnesias and what brain regions and neural pathways are necessary and sufficient to produce KS amnesia.
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Affiliation(s)
- Rosemary Fama
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine (MC5723), 401 Quarry Road, Stanford, CA 94305-5723, USA.
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Parker A, Dagnall N, Munley G. Encoding Tasks Dissociate the Effects of Divided Attention on Category-Cued Recall and Category-Exemplar Generation. Exp Psychol 2012; 59:124-31. [DOI: 10.1027/1618-3169/a000134] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The combined effects of encoding tasks and divided attention upon category-exemplar generation and category-cued recall were examined. Participants were presented with pairs of words each comprising a category name and potential example of that category. They were then asked to indicate either (i) their liking for both of the words or (ii) if the exemplar was a member of the category. It was found that divided attention reduced performance on the category-cued recall task under both encoding conditions. However, performance on the category-exemplar generation task remained invariant across the attention manipulation following the category judgment task. This provides further evidence that the processes underlying performance on conceptual explicit and implicit memory tasks can be dissociated, and that the intentional formation of category-exemplar associations attenuates the effects of divided attention on category-exemplar generation.
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Affiliation(s)
- Andrew Parker
- Department of Psychology, Manchester Metropolitan University, Manchester, UK
| | - Neil Dagnall
- Department of Psychology, Manchester Metropolitan University, Manchester, UK
| | - Gary Munley
- Department of Psychology, Manchester Metropolitan University, Manchester, UK
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Conceptual implicit memory and environmental context. Conscious Cogn 2011; 20:737-44. [DOI: 10.1016/j.concog.2010.11.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Revised: 11/07/2010] [Accepted: 11/09/2010] [Indexed: 11/21/2022]
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12
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Priming insight in groups: Facilitating and inhibiting solving an ambiguously worded insight problem. Mem Cognit 2010; 39:128-46. [DOI: 10.3758/s13421-010-0014-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Brown J, McKone E, Ward J. Deficits of long-term memory in ecstasy users are related to cognitive complexity of the task. Psychopharmacology (Berl) 2010; 209:51-67. [PMID: 20119830 DOI: 10.1007/s00213-009-1766-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Accepted: 12/21/2009] [Indexed: 10/19/2022]
Abstract
RATIONALE Despite animal evidence that methylenedioxymethamphetamine (ecstasy) causes lasting damage in brain regions related to long-term memory, results regarding human memory performance have been variable. This variability may reflect the cognitive complexity of the memory tasks. However, previous studies have tested only a limited range of cognitive complexity. Furthermore, comparisons across different studies are made difficult by regional variations in ecstasy composition and patterns of use. OBJECTIVES The objective of this study is to evaluate ecstasy-related deficits in human verbal memory over a wide range of cognitive complexity using subjects drawn from a single geographical population. MATERIALS AND METHODS Ecstasy users were compared to non-drug using controls on verbal tasks with low cognitive complexity (stem completion), moderate cognitive complexity (stem-cued recall and word list learning) and high cognitive complexity (California Verbal Learning Test, Verbal Paired Associates and a novel Verbal Triplet Associates test). Where significant differences were found, both groups were also compared to cannabis users. RESULTS More cognitively complex memory tasks were associated with clearer ecstasy-related deficits than low complexity tasks. In the most cognitively demanding task, ecstasy-related deficits remained even after multiple learning opportunities, whereas the performance of cannabis users approached that of non-drug using controls. Ecstasy users also had weaker deliberate strategy use than both non-drug and cannabis controls. CONCLUSIONS Results were consistent with the proposal that ecstasy-related memory deficits are more reliable on tasks with greater cognitive complexity. This could arise either because such tasks require a greater contribution from the frontal lobe or because they require greater interaction between multiple brain regions.
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Affiliation(s)
- John Brown
- Department of Psychology, The Australian National University, Building 39, Canberra, ACT 0200, Australia.
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Parker A, Dagnall N. Effects of retrieval practice on conceptual explicit and implicit consumer memory. APPLIED COGNITIVE PSYCHOLOGY 2009. [DOI: 10.1002/acp.1434] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Pitel AL, Beaunieux H, Witkowski T, Vabret F, de la Sayette V, Viader F, Desgranges B, Eustache F. Episodic and Working Memory Deficits in Alcoholic Korsakoff Patients: The Continuity Theory Revisited. Alcohol Clin Exp Res 2008; 32:1229-41. [DOI: 10.1111/j.1530-0277.2008.00677.x] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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d'Ydewalle G, Van Damme I. Memory and the Korsakoff syndrome: not remembering what is remembered. Neuropsychologia 2006; 45:905-20. [PMID: 17005214 DOI: 10.1016/j.neuropsychologia.2006.08.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Revised: 08/18/2006] [Accepted: 08/25/2006] [Indexed: 11/15/2022]
Abstract
Following the distinction between involuntary unconscious memory, involuntary conscious memory, and intentional retrieval, the focus of the present paper is whether there is an impairment of involuntary conscious memory among Korsakoff patients. At study, participants generated associations versus counted the number of letters with enclosed spaces or the number of vowels in the target words (semantic versus perceptual processing). In the Direct tests, stems were to be used to retrieve the targets with either guessing or no guessing allowed; in the Opposition tests, the stems were to be completed with the first word that came to mind but using another word if that first word was a target word; and in the Indirect tests, no reference was made to the target words from the study phase. In the Direct tests, the performance of Korsakoff patients was not necessarily worse than the one of healthy controls, provided guessing was allowed. More critical for the Korsakoff patients was the deficient involuntary conscious memory. The deficiency explained the suppression failures in the Opposition tests, the absence of performance differences between the Indirect and Opposition tests, the absence of a beneficial effect in providing information about the status of the stem, the performance boost when allowed to guess, and the very low rate of "Know"/"Remember" responses.
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Affiliation(s)
- Géry d'Ydewalle
- Department of Psychology, University of Leuven, B-3000 Leuven, Belgium.
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Gibson JM. Priming problem solving with conceptual processing of relevant objects. The Journal of General Psychology 2004; 131:118-35. [PMID: 15088865 DOI: 10.3200/genp.131.2.118-135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In the present study, the author explored the effect of processing relevant information on producing solutions to brief insight problems. She hypothesized that the conceptual processing of objects relevant to the target solution would facilitate that solution relative to unrelated objects or the shallow processing of words. The author also explored the effect of knowledge of the relationship between the initial object-processing task and the problem-solving task. The results showed that participants who conceptually processed objects related to the target solution (Experiment 1), but not those who shallowly processed words related to the target solution (Experiment 2), were more likely to produce the solution relative to the control; and knowledge of the relationship between objects and solutions made no difference in the frequency of target solutions produced. The results of Experiment 3 showed that conceptual processing of an object could prime a nondominant solution for an ambiguously worded problem. Taken together, the results of the studies supported the effect of conceptual processing on facilitating insight in problem solving.
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Affiliation(s)
- Janet M Gibson
- Department of Psychology, Grinnell College, IA 50012, USA.
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Murphy K, McKone E, Slee J. Dissociations between implicit and explicit memory in children: the role of strategic processing and the knowledge base. J Exp Child Psychol 2003; 84:124-65. [PMID: 12609496 DOI: 10.1016/s0022-0965(03)00002-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A review of the literature shows that explicit memory develops substantially from three years of age to adulthood, while implicit memory remains stable across this age range. Previously, this developmental dissociation has been attributed to different memory systems, or to confounds with perceptual vs. conceptual processing. Prompted by an alternative developmental framework, the experiments reported here provide evidence against both interpretations. Instead, it will be argued that (a) the implicit-explicit developmental dissociation reflects differences in strategic processing (strategy use and metamemory) across childhood and (b) that implicit memory can show development if a child's knowledge base in the tested domain is developing with age.
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Affiliation(s)
- Kristina Murphy
- School of Psychology, The Australian National University ACT 0200, Australia.
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