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Cui X, Lu J, Liu Y, Li J, Zheng Z, Guo C. Redundancy effect of initial enactment encoding and subsequent testing on memory enhancement: Insights from an electrophysiological study. Brain Res 2024; 1836:148939. [PMID: 38621635 DOI: 10.1016/j.brainres.2024.148939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/02/2024] [Accepted: 04/13/2024] [Indexed: 04/17/2024]
Abstract
Testing is more beneficial for memory retention than restudying the same content. However, the effect of the initial encoding method on the testing effect remains unclear. In this study, a classical testing effect paradigm was employed, along with event-related potentials (ERP), to investigate the electrophysiological processes underlying the effect of enactment encoding on the testing effect. Participants were randomly assigned to the Self-Performed Test (SPT) or Verbalized Test (VT) groups. Both groups underwent three stages: an initial encoding phase, an initial test phase (comprising a source memory task and a restudy task), and a final test phase. During the initial encoding phase, the SPT group encoded action phrases through enactment, while the VT group encoded information through reading. During the initial test phase, the SPT group exhibited superior recognition performance in item memory compared with the VT group. Both groups exhibited significant parietal old/new effects in the source memory task, with only the SPT group displaying parietal positivity during the restudy task. During the final test phase, the behavioral testing effect was exclusively observed in the VT group. Furthermore, the VT group displayed a more pronounced parietal positivity in the test condition compared to the restudy condition, while the parietal positivity between the two conditions was comparable in the SPT group. In summary, the absence of a final behavioral testing effect in the SPT group may be attributed to both enactment and testing primarily enhancing memory performance through recollection-based retrieval, as indicated by the parietal positivity. Consequently, the initial enactment encoding method leaves limited scope for further improvements through subsequent testing. These findings suggest that initial enactment encoding, and subsequent testing may be redundant in improving episodic memory performance.
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Affiliation(s)
- Xiaoyu Cui
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Jing Lu
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Yi Liu
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Juan Li
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Zhiwei Zheng
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
| | - Chunyan Guo
- Beijing Key Laboratory of Learning and Cognition, School of Psychology, Capital Normal University, No. 23 Baiduizijia, Fuwaidajie St, Haidian District, Beijin, China
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Dhammapeera P, Brunskill C, Hellerstedt R, Bergström ZM. Counterfactual imagination impairs memory for true actions: EEG and behavioural evidence. Cogn Neurosci 2024; 15:12-23. [PMID: 38362597 DOI: 10.1080/17588928.2024.2315814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Indexed: 02/17/2024]
Abstract
Imagined events can be misremembered as experienced, leading to memory distortions. However, less is known regarding how imagining counterfactual versions of past events can impair existing memories. We addressed this issue, and used EEG to investigate the neurocognitive processes involved when retrieving memories of true events that are associated with a competing imagined event. Participants first performed simple actions with everyday objects (e.g., rolling dice). A week later, they were shown pictures of some of the objects and either imagined the same action they had originally performed, or imagined a counterfactual action (e.g., stacking the dice). Subsequent tests showed that memory for performed actions was reduced after counterfactual imagination when compared to both veridical imagination and a baseline condition that had not been imagined at all, providing novel evidence that counterfactual imagination impairs true memories beyond simple forgetting over time. ERPs and EEG oscillations showed evidence of separate processes associated with memory retrieval versus post-retrieval processes that were recruited to support recall of memories that were challenging to access. The findings show that counterfactual imagination can cause impairments to sensorimotor-rich event memories, and provide new evidence regarding the neurocognitive mechanisms that are recruited when people need to distinguish memories of imagined versus true events.
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Affiliation(s)
- Phot Dhammapeera
- School of Psychology, University of Kent, Canterbury, UK
- Faculty of Psychology, Chulalongkorn University, Bangkok, Thailand
| | | | - Robin Hellerstedt
- School of Psychology, University of Kent, Canterbury, UK
- Centre for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain
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Tian Z, Huang S, Wen S, Zhang Q, Huang K, Gui Y, Hu B, Feng L, Wang Q. Event-related potentials reveal visual episodic memory deficits in patients with temporal lobe epilepsy. Epilepsy Behav 2023; 148:109460. [PMID: 37839245 DOI: 10.1016/j.yebeh.2023.109460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/17/2023] [Accepted: 09/21/2023] [Indexed: 10/17/2023]
Abstract
OBJECTIVE Temporal lobe epilepsy (TLE) patients usually suffer from impaired episodic memory (EM), but its underlying electrophysiologic mechanism and impacted cognitive performance are unclear. We aim to investigate the association between episodic memory reserve and physiological measures of memory workload in TLE patients using Event-related potentials (ERP). METHODS A change detection task with image stimuli assesses visual episodic memory. During the memory encoding and decoding phases, the ERP signals were analyzed from twenty-nine TLE patients (twelve with left TLE patients, seventeen with TLE), and thirty healthy controls. Given that EM is a complex process involving many fundamental cognitive processes, the amplitudes and latencies of EM-related ERP (FN400, late positive potential (LPC), and late posterior negativity (LPN)), and the ERP reflecting the fundamental processes (P100, N100, P200, and P300) were calculated. Then we used a three-by-two factorial design on the ERP metrics for interaction and main effects. The correlation analysis among Wechsler Memory Scales-Chinese Revision (WMS-RC) results, behavioral data, and the ERPs was carried out. RESULTS The TLE patients performed worse in WMS-RC and the memory task. The increased P200 and decreased P300 amplitudes were observed in the TLE patients, and LPN was abnormal in only LTLE patients. For EM-related components, differences were observed in both the LTLE and RTLE patients: the lack of the FN400 effect, the lack of the reversed LPC effect, and the reduced FN400. No significant inter-group difference was detected for the latencies of all the ERPs. Additionally, there were significant correlations among WMS-RC scores, behaviors, and some ERP amplitudes. CONCLUSIONS The impaired EM is linked to the increased P200 and decreased P300 amplitudes. LPN seems to be sensitive to left temporal lobe dysfunction. More importantly, the abnormal old or new effects of the FN400 and LPC, and the reduced FN400 amplitude might be associated with the visual EM deficit in the TLE patients. These findings may assist in the deep understanding of the EM disorder and the evaluation of the side effects of antiepileptic drugs.
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Affiliation(s)
- Ziwei Tian
- Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; University of Chinese Academy of Sciences, Beijing 101408, China; Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - Sha Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 330000, China
| | - Shirui Wen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 330000, China
| | - Qiong Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 330000, China
| | - Kailing Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 330000, China
| | - Yawei Gui
- Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; University of Chinese Academy of Sciences, Beijing 101408, China; Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - Bingliang Hu
- Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - Li Feng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 330000, China; Department of Neurology, Xiangya Hospital, Central South University (Jiangxi Branch), Nanchang, Jiangxi 410008, China.
| | - Quan Wang
- Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.
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Weigl M, Shao Q, Wang E, Zheng Z, Li J, Kray J, Mecklinger A. Not so different after all? An event-related potential study on item and source memory for object-scene pairs in German and Chinese young adults. Front Hum Neurosci 2023; 17:1233594. [PMID: 37771351 PMCID: PMC10525332 DOI: 10.3389/fnhum.2023.1233594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/21/2023] [Indexed: 09/30/2023] Open
Abstract
In recent years, several cross-cultural studies reported that Westerners focus more on central aspects of a scene (e.g., an object) relative to peripheral aspects (e.g., the background), whereas Easterners more evenly allocate attention to central and peripheral aspects. In memory tasks, Easterners exhibit worse recognition for the central object when peripheral aspects are changed, whereas Westerners are less affected by peripheral changes. However, most of these studies rely on hit rates without correcting for response bias, whereas studies accounting for response bias failed to replicate cultural differences in memory tasks. In this event-related potential (ERP) study, we investigated item and source memory for semantically unrelated object-scene pairs in German and Chinese young adults using memory measures corrected for response bias (i.e., the discrimination index Pr). Both groups completed study-test cycles with either item memory tests or source memory tests. In item memory blocks, participants completed an old/new recognition test for the central object. Source memory blocks entailed an associative recognition test for the association between object and background. Item and source memory were better for intact than for recombined pairs. However, as verified with frequentist and Bayesian analyzes, this context effect was not modulated by culture. The ERP results revealed an old/new effect for the item memory task in both groups which was again not modulated by culture. Our findings suggest that cultural differences in young adults do not manifest in intentional memory tasks probing memory for object-scene pairs without semantic relations when using bias-corrected memory measures.
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Affiliation(s)
- Michael Weigl
- Department of Psychology, Saarland University, Saarbrücken, Germany
| | - Qi Shao
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Enno Wang
- Department of Psychology, Saarland University, Saarbrücken, Germany
| | - Zhiwei Zheng
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Juan Li
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Jutta Kray
- Department of Psychology, Saarland University, Saarbrücken, Germany
| | - Axel Mecklinger
- Department of Psychology, Saarland University, Saarbrücken, Germany
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5
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Xu R, Jin CY, Gu R, Shi Y, Jiang Y, Luo YJ. Emotional autobiographical memory retrieval in time domain. Memory 2023; 31:1062-1073. [PMID: 37428138 DOI: 10.1080/09658211.2023.2220160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 05/25/2023] [Indexed: 07/11/2023]
Abstract
Autobiographical memory (AM) is an important psychological phenomenon that has significance for self-development and mental health. The psychological mechanisms of emotional AM retrieval and their association with individual emotional symptoms remain largely unclear in the literature. For this purpose, the current study provided cue words to elicit emotional AMs. Event-related potentials (ERPs) associated with the retrieval process of AMs were recorded and analyzed. We found that the ERP component N400 was sensitive to both emotional valence and retrieval state, such that its amplitude was larger for negative compared to positive AMs, and larger responses for unrecalled compared to recalled AMs. Further, the N400 amplitude in the positive recalled condition was correlated with individual difference in depression (measured by the Beck Depression Inventory). Another ERP component, the late positive potential (LPP), was also sensitive to emotional valence, such that its amplitude was larger (i.e., more positive-going) for positive compared to negative cues. No significant effect was observed on the early ERP components P1, N1, or P2. The current findings bring new understanding on the difference between positive and negative AMs retrieval in the time domain. Also, the importance of this difference to the individual level of depression is worth noting.
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Affiliation(s)
- Rui Xu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Christina Yi Jin
- Research Center for Augmented Intelligence, Zhejiang Lab, Hangzhou, People's Republic of China
| | - Ruolei Gu
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing, People's Republic of China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yuanyuan Shi
- Department of Tourism, Fudan University, Shanghai, People's Republic of China
| | - Yang Jiang
- Department of Behavioral Science, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Yue-Jia Luo
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, People's Republic of China
- Institute for Neuropsychological Rehabilitation, University of Health and Rehabilitation Sciences, Qingdao, People's Republic of China
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6
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Nie A, Zhou W, Xiao Y. Sensitivity of late ERP old/new effects in source memory to self-referential encoding focus and stimulus emotionality. Neurobiol Learn Mem 2023:107795. [PMID: 37394031 DOI: 10.1016/j.nlm.2023.107795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/03/2023] [Accepted: 06/26/2023] [Indexed: 07/04/2023]
Abstract
In episodic memory, the old/new effect, the contrast of the waveforms elicited by the correctly recognized studied items and the correctly rejected novel items, has been broadly concerned. However, the contribution of self-referential encoding to the old/new effect in source memory (i.e., source-SRE), is far from clarification; further, it remains unclear whether the contribution is susceptible to the factor of stimulus emotionality. To address these issues, adopting the event-related potential (ERP) technique, this study applied words of three types of emotional valences (positive, neutral, vs. negative) in the self-focus vs. external-focus encoding tasks. In the course of the test, four ERP old/new effects were identified: (a) the familiarity- and recollection-reflected mid-frontal effect (FN400) and late positive component (LPC) were both independent of source-SRE and stimulus emotionality; (b) the reconstruction-driven late posterior negativity (LPN) exhibited an adverse pattern of source-SRE and was susceptible to the emotional valence by encoding focus; and (c) the right frontal old/new effect (RFE), reflecting post-retrieval process, exhibited a source-SRE in emotional words. These effects provide compelling evidence for the influences of both stimulus valence and encoding focus on SRE in source memory, especially during the late processes. Further directions considering more perspectives are put forward.
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Affiliation(s)
- Aiqing Nie
- Department of Psychology, College of Educational Sciences, Shanxi Normal University, Taiyuan, Shanxi Province, 030031, China; The MOE Frontier Science Center for Brain Science & Brain-machine Integration, Zhejiang University, Hangzhou, 310058, China.
| | - Wenyu Zhou
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - Yueyue Xiao
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
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Justus SA, Mirjalili S, Powell PS, Duarte A. Neural reinstatement of context memory in adults with autism spectrum disorder. Cereb Cortex 2023; 33:8546-8556. [PMID: 37106572 PMCID: PMC10321090 DOI: 10.1093/cercor/bhad139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/29/2023] Open
Abstract
Autism spectrum disorder (ASD) is associated with episodic memory impairment. However, episodic memories include a variety of contextual details, and it is difficult to solely rely on behavioral data to assess how specifically (i.e. event-specific reinstatement) an event is remembered. We applied encoding-retrieval representational similarity (ERS) analysis to EEG data to assess event-specific ERS for object-context associations in a sample of 34 adults (17 with, 17 without ASD). Participants studied objects presented alongside 2 contextual features: scene/color, and attention was directed toward one object-context relationship. At retrieval, memory was assessed for the object and both contexts. Behavioral results revealed no group differences in item or context memory performance. ERS results revealed group temporal differences in reinstatement. Results may indicate differences in both encoding (i.e. fewer perceptual details) and retrieval (i.e. ineffectively skipping through memory fragments) in ASD and should be further investigated in studies modulating the perceptual detail required for memory decisions. Results highlight the utility of ERS as a methodology used to evaluate episodic reinstatement even in the absence of behavioral differences in memory performance.
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Affiliation(s)
- Sidni A Justus
- Department of Psychological Science, Kennesaw State University, 402 Bartow Ave NW, Kennesaw, GA 30144, United States
| | - Soroush Mirjalili
- Department of Psychology, University of Texas at Austin, 108 E Dean Keeton St, Austin, TX 78712, United States
| | - Patrick S Powell
- National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, 1600 Clifton Rd., Atlanta GA 30333, United States
| | - Audrey Duarte
- Department of Psychology, University of Texas at Austin, 108 E Dean Keeton St, Austin, TX 78712, United States
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8
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Nie A, Wu Y. Differentiation of the Contribution of Familiarity and Recollection to the Old/New Effects in Associative Recognition: Insight from Semantic Relation. Brain Sci 2023; 13:brainsci13040553. [PMID: 37190517 DOI: 10.3390/brainsci13040553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Previous research has revealed two different old/new effects, the early mid-frontal old/new effect (a.k.a., FN400) and the late parietal old/new effect (a.k.a., LPC), which relate to familiarity and recollection processes, respectively. Although associative recognition is thought to be more based on recollection, recent studies have confirmed that familiarity can make a great contribution when the items of a pair are unitized. However, it remains unclear whether the old/new effects are sensitive to the nature of different semantic relations. The current ERP (event-related potentials) study aimed to address this, where picture pairs of thematic, taxonomic, and unrelated relations served as stimuli and participants were required to discriminate the pair type: intact, rearranged, “old + new”, or new. We confirmed both FN400 and LPC. Our findings, by comparing the occurrence and the amplitudes of these two components, implicate that the neural activity of associative recognition is sensitive to the semantic relation of stimuli and depends more on stimulus properties, that the familiarity of a single item can impact the neural activities in discriminating associative pairs, and that the interval length between encoding and test modulates the familiarity of unrelated pairs. In addition, the dissociation between FN400 and LPC reinforces the dual-process models.
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Rodríguez Holguín S, Folgueira-Ares R, Crego A, López-Caneda E, Corral M, Cadaveira F, Doallo S. Neurocognitive effects of binge drinking on verbal episodic memory. An ERP study in university students. Front Pharmacol 2023; 14:1034248. [PMID: 36825155 PMCID: PMC9941344 DOI: 10.3389/fphar.2023.1034248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 01/27/2023] [Indexed: 02/09/2023] Open
Abstract
Background: Verbal memory may be affected by engagement in alcohol binge drinking during youth, according to the findings of neuropsychological studies. However, little is known about the dynamics of the neural activity underlying this cognitive process in young, heavy drinkers. Aims: To investigate brain event-related potentials associated with cued recall from episodic memory in binge drinkers and controls. Methods: Seventy first-year university students were classified as binge drinkers (32: 17 female) or controls (38: 18 female). The participants completed a verbal paired associates learning task during electroencephalogram (EEG) recording. ERPs elicited by old and new word pairs were extracted from the cued-recall phase of the task by using Principal Component Analysis. Subjects also performed a standardized neuropsychological verbal learning test. Results: Two of the three event-related potentials components indicating old/new memory effects provided evidence for anomalies associated with binge drinking. The old/new effects were absent in the binge drinkers in the two subsequent posterior components, identified with the late parietal component and the late posterior negativity The late frontal component revealed similar old/new effects in both groups. Binge drinkers showed similar behavioural performance to controls in the verbal paired associates task, but performed poorly in the more demanding short-term cued-recall trial of a neuropsychological standardized test. Conclusion: Event-related potentials elicited during a verbal cued-recall task revealed differences in brain functioning between young binge drinkers and controls that may underlie emergent deficits in episodic memory linked to alcohol abuse. The brain activity of binge drinkers suggests alterations in the hippocampal - posterior parietal cortex circuitry subserving recognition and recollection of the cue context and generation of the solution, in relation to verbal information shallowly memorised.
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Affiliation(s)
- Socorro Rodríguez Holguín
- Department of Clinical Psychology and Psychobiology, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Rocío Folgueira-Ares
- Department of Clinical Psychology and Psychobiology, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Alberto Crego
- Psychological Neuroscience Laboratory (PNL), Research Center in Psychology (CIPsi), School of Psychology, University of Minho, Campus de Gualtar, Gualtar, Portugal
| | - Eduardo López-Caneda
- Psychological Neuroscience Laboratory (PNL), Research Center in Psychology (CIPsi), School of Psychology, University of Minho, Campus de Gualtar, Gualtar, Portugal
| | - Montserrat Corral
- Department of Clinical Psychology and Psychobiology, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Fernando Cadaveira
- Department of Clinical Psychology and Psychobiology, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Sonia Doallo
- Department of Clinical Psychology and Psychobiology, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
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Font-Alaminos M, Paraskevoudi N, SanMiguel I. Actions do not clearly impact auditory memory. Front Hum Neurosci 2023; 17:1124784. [PMID: 36923585 PMCID: PMC10009998 DOI: 10.3389/fnhum.2023.1124784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/31/2023] [Indexed: 03/06/2023] Open
Abstract
When memorizing a list of words, those that are read aloud are remembered better than those read silently, a phenomenon known as the production effect. There have been several attempts to understand the production effect, however, actions alone have not been examined as possible contributors. Stimuli that coincide with our own actions are processed differently compared to stimuli presented passively to us. These sensory response modulations may have an impact on how action-revolving inputs are stored in memory. In this study, we investigated whether actions could impact auditory memory. Participants listened to sounds presented either during or in between their actions. We measured electrophysiological responses to the sounds and tested participants' memory of them. Results showed attenuation of sensory responses for action-coinciding sounds. However, we did not find a significant effect on memory performance. The absence of significant behavioral findings suggests that the production effect may be not dependent on the effects of actions per se. We conclude that action alone is not sufficient to improve memory performance, and thus elicit a production effect.
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Affiliation(s)
- Marta Font-Alaminos
- Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.,Brainlab-Cognitive Neuroscience Research Group, Departament de Psicologia Clinica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain
| | - Nadia Paraskevoudi
- Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.,Brainlab-Cognitive Neuroscience Research Group, Departament de Psicologia Clinica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain
| | - Iria SanMiguel
- Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.,Brainlab-Cognitive Neuroscience Research Group, Departament de Psicologia Clinica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain.,Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain
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11
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Bencze D, Szőllősi Á, Németh K, Racsmány M. An event-related potential study of the testing effect: Electrophysiological evidence for context-dependent processes changing throughout repeated practice. Biol Psychol 2022; 171:108341. [PMID: 35460819 DOI: 10.1016/j.biopsycho.2022.108341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 11/17/2022]
Abstract
The testing effect refers to a special form of performance improvement following practice. Specifically, repeated retrieval attempts improve long-term memory. In the present study we examined the underlying mechanisms of the testing effect as a function of time by investigating the electrophysiological correlates of repeated retrieval practice. We additionally investigated the ERP waveforms of the repeated practice phase as a function of the accuracy on the final test in a "difference due to memory" (Dm) analysis. We found a parietally distributed, increased positive amplitude between 500-700 ms, and a more positive parietal wave between 700 and 1000 ms in the later relative to the early phases of retrieval practice. We found parietal Dm effects in the same two time windows in the retrieval practice condition with a more positive amplitude predicting retrieval success on the final test. We interpret the earlier waveform as a component associated with episodic recollection and the later ERP as a component related to post-retrieval evaluation processes. Our results demonstrate the important role of these retrieval-related processes in the facilitating effect of retrieval practice on later retrieval, and show that the involvement of these processes changes throughout practice.
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Affiliation(s)
- Dorottya Bencze
- Department of Cognitive Science, Budapest University of Technology and Economics, Egry József utca 1, 1111 Budapest, Hungary; Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, 1117 Budapest, Hungary.
| | - Ágnes Szőllősi
- Department of Cognitive Science, Budapest University of Technology and Economics, Egry József utca 1, 1111 Budapest, Hungary; Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, 1117 Budapest, Hungary.
| | - Kornél Németh
- Department of Cognitive Science, Budapest University of Technology and Economics, Egry József utca 1, 1111 Budapest, Hungary.
| | - Mihály Racsmány
- Department of Cognitive Science, Budapest University of Technology and Economics, Egry József utca 1, 1111 Budapest, Hungary; Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, 1117 Budapest, Hungary.
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12
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Campos-Arteaga G, Araneda A, Ruiz S, Rodríguez E, Sitaram R. Classifying brain states and pupillary responses associated with the processing of old and new information. Int J Psychophysiol 2022; 176:129-141. [DOI: 10.1016/j.ijpsycho.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 11/25/2022]
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13
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Haese A, Czernochowski D. Using temporo-spatial principal component analysis as tool to dissociate latent ERP components of episodic memory retrieval: Objectifying time-window selection for overlapping ERP components. Brain Cogn 2021; 157:105833. [PMID: 34979488 DOI: 10.1016/j.bandc.2021.105833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 11/02/2022]
Abstract
This report details how principal component analysis (PCA) can be used as a valuable tool to dissociate latent ERP components, even when considerable temporal and spatial overlap makes it difficult to discern ERP effects in standard time windows. We illustrate our methodological approach in a data set from a recognition memory paradigm, in which event-related potential (ERP) correlates of familiarity, recollection and the late parietal negativity (LPN) were partially overlapping. By adapting standard time windows based on the results of a temporo-spatial PCA, small yet reliable ERP correlates reflecting familiarity and recollection for identical items and late recollection for changed items were identified, complementing the result pattern observed in behavioral performance. Due to similar temporo-spatial characteristics and opposing polarities in late parietal ERP correlates associated with memory retrieval, component overlap is often observed in this field of research. Hence, the complex interplay of several processes underlying higher cognitive functions such as memory retrieval may interfere with standard ERP assessment. In such instances, PCA can provide promising ways to objectively assess time window selection for subsequent ERP analyses.
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Affiliation(s)
- André Haese
- Center for Cognitive Science, Cognitive Neuroscience Unit, Technische Universität Kaiserslautern, Germany
| | - Daniela Czernochowski
- Center for Cognitive Science, Cognitive Neuroscience Unit, Technische Universität Kaiserslautern, Germany.
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14
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Xu J, Zhou L, Liu F, Xue C, Jiang J, Jiang C. The autistic brain can process local but not global emotion regularities in facial and musical sequences. Autism Res 2021; 15:222-240. [PMID: 34792299 DOI: 10.1002/aur.2635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 11/05/2022]
Abstract
Whether autism spectrum disorder (ASD) is associated with a global processing deficit remains controversial. Global integration requires extraction of regularity across various timescales, yet little is known about how individuals with ASD process regularity at local (short timescale) versus global (long timescale) levels. To this end, we used event-related potentials to investigate whether individuals with ASD would show different neural responses to local (within trial) versus global (across trials) emotion regularities extracted from sequential facial expressions; and if so, whether this visual abnormality would generalize to the music (auditory) domain. Twenty individuals with ASD and 21 age- and IQ-matched individuals with typical development participated in this study. At an early processing stage, ASD participants exhibited preserved neural responses to violations of local emotion regularity for both faces and music. At a later stage, however, there was an absence of neural responses in ASD to violations of global emotion regularity for both faces and music. These findings suggest that the autistic brain responses to emotion regularity are modulated by the timescale of sequential stimuli, and provide insight into the neural mechanisms underlying emotional processing in ASD.
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Affiliation(s)
- Jie Xu
- Department of Psychology, Shanghai Normal University, Shanghai, China
| | - Linshu Zhou
- Music College, Shanghai Normal University, Shanghai, China
| | - Fang Liu
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Chao Xue
- Department of Psychology, Shanghai Normal University, Shanghai, China
| | - Jun Jiang
- Music College, Shanghai Normal University, Shanghai, China
| | - Cunmei Jiang
- Music College, Shanghai Normal University, Shanghai, China
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15
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Andrew Leynes P. The effect of test query on recognition event-related potentials (ERPs). Brain Cogn 2021; 155:105814. [PMID: 34739915 DOI: 10.1016/j.bandc.2021.105814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/27/2021] [Accepted: 10/22/2021] [Indexed: 10/19/2022]
Abstract
The influence of question framing (i.e., [was the item] "old?" or "new?") on recognition memory and event-related potentials (ERPs) was investigated. Words were encoded using a shallow task to create a weak memory trace that was more susceptible to test question framing effects. Participants made yes/no judgments on two, counterbalanced tests. One test focused on old items ("old?"), whereas the other test focused on new items ("new?"). The behavioral evidence suggested that the weak memory traces led to more familiarity-based recognition judgments with a concentrated effect on decision criterion. There were some small ERP changes on the FN400 or LPC consistent with the criterion changes, but the test query did not directly alter these ERP components. Instead, the test query altered a late old/new ERP difference similar to the "right frontal old/new effect" reported in source monitoring ERP studies. When the query was "new?", old items elicited more positive ERPs, whereas there was no old/new difference when the query was "old?". The results suggest that the query framing induces memory biases that occur late in the stream of processing. More generally, the results indicate that decision criterion must be accounted for when interpreting physiological correlates of recognition memory.
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16
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Pan DN, Hoid D, Wolf OT, Li X. Brain activities of reconsolidation: Nuances in post-retrieval interference led to optimal alterations of episodic memories. Neurobiol Learn Mem 2021; 185:107531. [PMID: 34597815 DOI: 10.1016/j.nlm.2021.107531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/20/2021] [Accepted: 09/24/2021] [Indexed: 11/17/2022]
Abstract
When memories are reactivated, they enter a period of instability in which they can be affected by a variety of follow-up manipulations. The existence of this type of memory reconsolidation offers the potential for clinical interventions of maladaptive memory. However, such potential cannot be fully exploited until the internal mechanisms of memory changes via reconsolidation are better understood. In the current study, we used a three-day AB-AC paradigm that included self-referential simulation processing and employed electroencephalogram (EEG) techniques to explore how post-retrieval updates of episodic memory come about. Behaviorally, we found that reactivation alongside interference learning (ReI-L, AB-AC, n = 52) can produce much more false memories compared to no reactivation new learning (New-L, AB-DC, n = 31) and reactivation repetitive learning (Rep-L, AB-AB. n = 30). More importantly, ERP results revealed that trials from ReI-L in which memory distortions subsequently occurred showed an observable (compared to the new-learning without memory reactivation) but attenuated (compared to trials associating with later intact memory) amplitude of frontal N400, indicating a moderate level of early conflict reactivation is necessary to trigger crucial memory instability. In addition, to promote optimal distortion of the original memory, a sufficient later constructional processing is also required, reflecting in these intrusive/later false trials showed a larger amplitude of late posterior negativity (LPN). A linear classifier employing neuro features of FN400 and LPN during the reconsolidation phase could predict the original memory retention with 72% accuracy. The present findings indicate that nuance in post-retrieval interference, moderate conflict with protracted construction can lead to optimal alterations of episodic memories.
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Affiliation(s)
- Dong-Ni Pan
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China; Department of Cognitive Psychology, Institute of Cognitive Neuroscience, Ruhr University Bochum, Bochum 44801, Germany
| | - Delhii Hoid
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Oliver T Wolf
- Department of Cognitive Psychology, Institute of Cognitive Neuroscience, Ruhr University Bochum, Bochum 44801, Germany
| | - Xuebing Li
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China.
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17
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Manfredi M, Celebic C, Daum MM. When dogs meow: An electrophysiological study of lexical-semantic processing in toddlers. INFANCY 2021; 26:1076-1096. [PMID: 34499397 DOI: 10.1111/infa.12434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 08/03/2021] [Accepted: 08/10/2021] [Indexed: 11/26/2022]
Abstract
The goal of this study was to investigate lexical-semantic processing at an early phase of language development. Adults often communicate with children using infant-directed speech that typically involves lexical and syntactic modifications such as onomatopoeias (Soderstrom, 2007). Here, we asked how and when children start to show an advantage for processing conventional linguistic forms, such as common nouns, and consequently decreasing sensitivity to onomatopoeias. We recorded event-related brain potentials in children of two age groups (16-21 months and 24-31 months) and in an adult control group during the presentation of four conditions in which either common nouns or onomatopoeias were presented auditorily followed by a picture of an either congruent or incongruent object. We focused on the N400 effect, a more negative ERP response to incongruent compared with congruent semantic relations. The younger children showed an N400 effect only for onomatopoeic words, while the older children showed an N400 effect only for common nouns. The adults showed N400 effects for onomatopoeia and nouns. These different N400 effects suggest that onomatopoeia and common nouns are differently organized in children's semantic memory and that the acquisition of linguistic abilities affects and modifies semantic processing of different lexical information.
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Affiliation(s)
- Mirella Manfredi
- Department of Psychology, University of Zurich, Zurich, Switzerland
| | - Corina Celebic
- Department of Psychology, University of Zurich, Zurich, Switzerland
| | - Moritz M Daum
- Department of Psychology, University of Zurich, Zurich, Switzerland.,Jacobs Center for Productive Youth Development, University of Zurich, Zurich, Switzerland
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18
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Karimi H, Diaz M. Age-related differences in the retrieval of phonologically similar words during sentence processing: Evidence from ERPs. BRAIN AND LANGUAGE 2021; 220:104982. [PMID: 34153876 PMCID: PMC8564888 DOI: 10.1016/j.bandl.2021.104982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 05/22/2023]
Abstract
We investigated how phonologically similar words are encoded and retrieved from memory during sentence processing across younger and older adults. Critical sentences included two phonologically similar or dissimilar noun phrases (henceforth NPs) followed by a pronoun. We examined brain activity time-locked to the onsets of the second NP, and the pronoun to investigate the encoding and retrieval of the NPs, respectively. Encoding the second NP resulted in smaller N400 amplitudes when the preceding NP was phonologically similar, for both younger and older adults, suggesting age-invariant encoding facilitation with increasing phonological similarity. However, when processing the pronoun, younger adults exhibited greater negativity following phonologically similar NPs, suggesting retrieval difficulty, whereas older adults showed greater negativity for pronouns following dissimilar NPs, suggesting an apparent retrieval facilitation. A post-hoc behavioral experiment suggested that older adults perform shallow processing during retrieval. The results suggest age-related decline in retrieval, but not encoding, of phonological information.
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Affiliation(s)
| | - Michele Diaz
- The Pennsylvania State University, United States
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19
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Spychalska M, Reimer L, Schumacher PB, Werning M. The Cost of the Epistemic Step: Investigating Scalar Implicatures in Full and Partial Information Contexts. Front Psychol 2021; 12:679491. [PMID: 34349701 PMCID: PMC8328393 DOI: 10.3389/fpsyg.2021.679491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/11/2021] [Indexed: 11/25/2022] Open
Abstract
We present the first ERP experiments that test the online processing of the scalar implicature some ⇝ not all in contexts where the speaker competence assumption is violated. Participants observe game scenarios with four open cards on the table and two closed cards outside of the table, while listening to statements made by a virtual player. In the full access context, the player makes a fully informed statement by referring only to the open cards, as cards on the table; in the partial access context, she makes a partially informed statement by referring to the whole set of cards, as cards in the game. If all of the open cards contain a given object X (Fullset condition), then some cards on the table contain Xs is inconsistent with the not all reading, whereas it is unknown whether some cards in the game contain X is consistent with this reading. If only a subset of the open cards contains X (Subset condition), then both utterances are known to be consistent with the not all implicature. Differential effects are observed depending on the quantifier reading adopted by the participant: For those participants who adopt the not all reading in the full access context, but not in the partial access context (weak pragmatic reading), a late posterior negativity effect is observed in the partial access context for the Fullset relative to the Subset condition. This effect is argued to reflect inference-driven context retrieval and monitoring processes related to epistemic reasoning involved in evaluating the competence assumption. By contrast, for participants who adopt the logical interpretation of some (some and possibly all), an N400 effect is observed in the partial access context, when comparing the Subset against the Fullset condition, which is argued to result from the competition between the two quantifying expressions some cards on the table and some cards in the game functioning in the experiment as scalar alternatives.
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Affiliation(s)
- Maria Spychalska
- Institute for German Language and Literature I, Linguistics, University of Cologne, Cologne, Germany
| | - Ludmila Reimer
- Institute of Philosophy II, Ruhr University of Bochum, Bochum, Germany
| | - Petra B Schumacher
- Institute for German Language and Literature I, Linguistics, University of Cologne, Cologne, Germany
| | - Markus Werning
- Institute of Philosophy II, Ruhr University of Bochum, Bochum, Germany
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20
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Liu TL, Lin ST, Cheng SK. Retrieval orientation for memories encoded in emotional contexts: An ERP study. Brain Cogn 2021; 152:105769. [PMID: 34186440 DOI: 10.1016/j.bandc.2021.105769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 05/09/2021] [Accepted: 06/17/2021] [Indexed: 11/30/2022]
Abstract
Retrieval orientation, which is involved in recognition cue processing, optimizes goal-directed memory retrieval. However, whether the emotionality of encoding context affects subsequent retrieval orientation remains unclear. To clarify this, neutral objects were paired with either emotional or neutral background scenes during the study phase. During recognition test, only neutral objects were presented. The ERP analysis on the correctly rejected new items indicated that at least two processes were modulated by the emotionality of memory: 1) the arousal-modulated effect on the right-frontal scalp, and 2) the posterior-distributed effect, which was found to differentiate between memories with positive and negative valence. Furthermore, the magnitude of posterior-distributed effect was correlated with affective rating. The topographical distribution indicated that retrieval orientation for positive memories involves at least partially different neural circuitries from neutral or negative memories. Our results suggest that the emotionality of encoding context affects subsequent retrieval orientation.
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Affiliation(s)
- Tzu-Ling Liu
- Graduate Institute of Mind Brain and Consciousness, Taipei Medical University, Taipei, Taiwan; Brain and Consciousness Research Center, TMU-Shuang Ho Hospital, New Taipei City, Taiwan; Institute of Cognitive Neuroscience, Nation Central University, Taiwan
| | - Szu-Ti Lin
- Institute of Cognitive Neuroscience, Nation Central University, Taiwan
| | - Shih-Kuen Cheng
- Institute of Cognitive Neuroscience, Nation Central University, Taiwan.
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21
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Wang X, Liu S, Ma J, Wang K, Wang Z, Li J, Chen J, Zhan H, Wu W. The Inhibitory Effect of Emotional Conflict Control on Memory Retrieval. Neuroscience 2021; 468:29-42. [PMID: 34102264 DOI: 10.1016/j.neuroscience.2021.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/16/2021] [Accepted: 05/28/2021] [Indexed: 10/21/2022]
Abstract
Evidence is mounting that emotional conflict is mainly resolved by the rostral anterior cingulate inhibiting the processing of emotional distractors. However, this theory has not been verified from the perspective of memory retrieval. This experiment aimed to explore the offline effect of emotional conflict processing on memory retrieval. We adopted a modified encoding-retrieval paradigm to explore this issue. Participants' electroencephalography (EEG) signal were also collected. A face-word Stroop task was used to create the congruency factor. In addition, an old/new judgment task was used to evaluate the recognition performance. During the retrieval phase, the response time of the incongruent condition was longer and the recognition accuracy was lower compared with congruent and neutral conditions in the behavioral data. For event-related potentials (ERP), we detected two well-established old/new effects related to memory retrieval under both neutral and emotional conditions: the frontal negativity (FN400) related to familiarity-driven recognition and the late posterior negativity (LPN) related to reconstructive processing or evaluation of retrieval outcomes. More importantly, the old/new effects were missing for incongruent condition during the early stage of FN400 (300-400 ms). Besides, for LPN (700-900 ms), the old/new effects of the incongruent condition are greater than the congruent condition. The results prove that the encoding phase's emotional congruency factor has a regulatory effect on the retrieval phase's early familiarity processing and evaluation of retrieval outcomes. Our data confirm the inhibitory effect of emotional conflict control on memory retrieval and support the emotional conflict control mechanism found in previous studies.
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Affiliation(s)
- Xianglong Wang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Sishi Liu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Junqin Ma
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Kangling Wang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Zhengtao Wang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Jie Li
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Jiali Chen
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China
| | - Hongrui Zhan
- Department of Rehabilitation, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong Province, China
| | - Wen Wu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, China.
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22
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Hernández-Gutiérrez D, Muñoz F, Sánchez-García J, Sommer W, Abdel Rahman R, Casado P, Jiménez-Ortega L, Espuny J, Fondevila S, Martín-Loeches M. Situating language in a minimal social context: how seeing a picture of the speaker's face affects language comprehension. Soc Cogn Affect Neurosci 2021; 16:502-511. [PMID: 33470410 PMCID: PMC8094999 DOI: 10.1093/scan/nsab009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 11/29/2020] [Accepted: 01/19/2021] [Indexed: 11/14/2022] Open
Abstract
Natural use of language involves at least two individuals. Some studies have focused on the interaction between senders in communicative situations and how the knowledge about the speaker can bias language comprehension. However, the mere effect of a face as a social context on language processing remains unknown. In the present study, we used event-related potentials to investigate the semantic and morphosyntactic processing of speech in the presence of a photographic portrait of the speaker. In Experiment 1, we show that the N400, a component related to semantic comprehension, increased its amplitude when processed within this minimal social context compared to a scrambled face control condition. Hence, the semantic neural processing of speech is sensitive to the concomitant perception of a picture of the speaker's face, even if irrelevant to the content of the sentences. Moreover, a late posterior negativity effect was found to the presentation of the speaker's face compared to control stimuli. In contrast, in Experiment 2, we found that morphosyntactic processing, as reflected in left anterior negativity and P600 effects, is not notably affected by the presence of the speaker's portrait. Overall, the present findings suggest that the mere presence of the speaker's image seems to trigger a minimal communicative context, increasing processing resources for language comprehension at the semantic level.
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Affiliation(s)
- David Hernández-Gutiérrez
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
| | - Francisco Muñoz
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
- Department of Psychobiology & Methods for the Behavioural Sciences, Complutense University of Madrid, Madrid 28040, Spain
| | - Jose Sánchez-García
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
| | - Werner Sommer
- Department of Psychology, Humboldt Universität zu Berlin, Berlin 10117, Germany
| | - Rasha Abdel Rahman
- Department of Psychology, Humboldt Universität zu Berlin, Berlin 10117, Germany
| | - Pilar Casado
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
- Department of Psychobiology & Methods for the Behavioural Sciences, Complutense University of Madrid, Madrid 28040, Spain
| | - Laura Jiménez-Ortega
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
- Department of Psychobiology & Methods for the Behavioural Sciences, Complutense University of Madrid, Madrid 28040, Spain
| | - Javier Espuny
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
| | - Sabela Fondevila
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
- Department of Psychobiology & Methods for the Behavioural Sciences, Complutense University of Madrid, Madrid 28040, Spain
| | - Manuel Martín-Loeches
- Cognitive Neuroscience Section, Center UCM-ISCIII for Human Evolution and Behaviour, Madrid 28029, Spain
- Department of Psychobiology & Methods for the Behavioural Sciences, Complutense University of Madrid, Madrid 28040, Spain
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23
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Hellerstedt R, Moccia A, Brunskill CM, Bowman H, Bergström ZM. Aging reduces EEG markers of recognition despite intact performance: Implications for forensic memory detection. Cortex 2021; 140:80-97. [PMID: 33951486 DOI: 10.1016/j.cortex.2021.03.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 02/15/2021] [Accepted: 03/17/2021] [Indexed: 11/19/2022]
Abstract
ERP-based forensic memory detection is based on the logic that guilty suspects will hold incriminating knowledge about crimes they have committed, and therefore should show parietal ERP positivities related to recognition when presented with reminders of their crimes. We predicted that such forensic memory detection might however be inaccurate in older adults, because of changes to recognition-related brain activity that occurs with aging. We measured both ERPs and EEG oscillations associated with episodic old/new recognition and forensic memory detection in 30 younger (age < 30) and 30 older (age > 65) adults. EEG oscillations were included as a complementary measure which is less sensitive to temporal variability and component overlap than ERPs. In line with predictions, recognition-related parietal ERP positivities were significantly reduced in the older compared to younger group in both tasks, despite highly similar behavioural performance. We also observed aging-related reductions in oscillatory markers of recognition in the forensic memory detection test, while the oscillatory effects associated with episodic recognition were similar across age groups. This pattern of results suggests that while both forensic memory detection and episodic recognition are accompanied by aging-induced reductions in parietal ERP positivities, these reductions may be caused by non-overlapping mechanisms across the two tasks. Our findings suggest that EEG-based forensic memory detection tests are less valid in older than younger populations, limiting their practical applications.
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Affiliation(s)
- Robin Hellerstedt
- School of Psychology, University of Kent, UK; Department of Psychology, University of Cambridge, UK.
| | - Arianna Moccia
- School of Psychology, University of Kent, UK; School of Psychology, University of Sussex, UK
| | | | - Howard Bowman
- School of Computing, University of Kent, UK; School of Psychology, University of Birmingham, UK
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24
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Li M, Nie A. Do we prioritise memory for cheaters? Rebuttal evidence from old/new effects in episodic memory. JOURNAL OF COGNITIVE PSYCHOLOGY 2021. [DOI: 10.1080/20445911.2021.1894157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Mengsi Li
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou, People’s republic of china
| | - Aiqing Nie
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou, People’s republic of china
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25
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Cnudde K, van Hees S, Brown S, van der Wijk G, Pexman PM, Protzner AB. Increased Neural Efficiency in Visual Word Recognition: Evidence from Alterations in Event-Related Potentials and Multiscale Entropy. ENTROPY (BASEL, SWITZERLAND) 2021; 23:304. [PMID: 33806539 PMCID: PMC8002031 DOI: 10.3390/e23030304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/26/2021] [Accepted: 02/26/2021] [Indexed: 11/25/2022]
Abstract
Visual word recognition is a relatively effortless process, but recent research suggests the system involved is malleable, with evidence of increases in behavioural efficiency after prolonged lexical decision task (LDT) performance. However, the extent of neural changes has yet to be characterized in this context. The neural changes that occur could be related to a shift from initially effortful performance that is supported by control-related processing, to efficient task performance that is supported by domain-specific processing. To investigate this, we replicated the British Lexicon Project, and had participants complete 16 h of LDT over several days. We recorded electroencephalography (EEG) at three intervals to track neural change during LDT performance and assessed event-related potentials and brain signal complexity. We found that response times decreased during LDT performance, and there was evidence of neural change through N170, P200, N400, and late positive component (LPC) amplitudes across the EEG sessions, which suggested a shift from control-related to domain-specific processing. We also found widespread complexity decreases alongside localized increases, suggesting that processing became more efficient with specific increases in processing flexibility. Together, these findings suggest that neural processing becomes more efficient and optimized to support prolonged LDT performance.
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Affiliation(s)
- Kelsey Cnudde
- Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada; (S.v.H.); (S.B.); (G.v.d.W.); (P.M.P.); (A.B.P.)
| | - Sophia van Hees
- Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada; (S.v.H.); (S.B.); (G.v.d.W.); (P.M.P.); (A.B.P.)
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Sage Brown
- Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada; (S.v.H.); (S.B.); (G.v.d.W.); (P.M.P.); (A.B.P.)
| | - Gwen van der Wijk
- Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada; (S.v.H.); (S.B.); (G.v.d.W.); (P.M.P.); (A.B.P.)
| | - Penny M. Pexman
- Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada; (S.v.H.); (S.B.); (G.v.d.W.); (P.M.P.); (A.B.P.)
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Andrea B. Protzner
- Department of Psychology, University of Calgary, Calgary, AB T2N 1N4, Canada; (S.v.H.); (S.B.); (G.v.d.W.); (P.M.P.); (A.B.P.)
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
- The Mathison Centre for Mental Health Research & Education, University of Calgary, Calgary, AB T2N 4Z6, Canada
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Interactions of Emotion and Self-reference in Source Memory: An ERP Study. COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2021; 21:172-190. [PMID: 33608840 DOI: 10.3758/s13415-020-00858-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/08/2020] [Indexed: 11/08/2022]
Abstract
The way emotional information is encoded (e.g., deciding whether it is self-related or not) has been found to affect source memory. However, few studies have addressed how the emotional quality and self-referential properties of a stimulus interactively modulate brain responses during stimulus encoding and source memory recognition. In the current study, 22 participants completed five study-test cycles with negative, neutral, and positive words encoded in self-referential versus non-self-referential conditions, while event-related potentials of the electroencephalogram were recorded. An advantage of self-referential processing in source memory performance, reflected in increased recognition accuracy, was shown for neutral and positive words. At the electrophysiological level, self-referential words elicited increased amplitudes in later processing stages during encoding (700-1,200 ms) and were associated with the emergence of old/new effects in the 300-500 ms latency window linked to familiarity effects. In the 500-800 ms latency window, old/new effects emerged for all valence conditions except for negative words studied in the non-self-referential condition. Negative self-referential words also elicited a greater mobilization of post-retrieval monitoring processes, reflected in an enhanced mean amplitude in the 800-1,200 ms latency window. Together, the current findings suggest that valence and self-reference interactively modulate source memory. Specifically, negative self-related information is more likely to interfere with the recollection of source memory features.
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Khachatoorian N, Loveday C, Dima D, Mair A, Illingworth S, Conway MA, Haenschel C. A behavioural and ERP investigation of the wearable camera photo review in autobiographical memory. Memory 2021; 29:224-233. [PMID: 33533696 DOI: 10.1080/09658211.2021.1880601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Wearable camera photo review has successfully been used to enhance memory, yet very little is known about the underlying mechanisms. Here, the sequential presentation of wearable camera photos - a key feature of wearable camera photo review - is examined using behavioural and EEG measures. Twelve female participants were taken on a walking tour, stopping at a series of predefined targets, while wearing a camera that captured photographs automatically. A sequence of four photos leading to these targets was selected (∼ 200 trials) and together with control photos, these were used in a recognition task one week later. Participants' recognition performance improved with the sequence of photos (measured in hit rates, correct rejections, & sensitivity), revealing for the first time, a positive effect of sequence of photos in wearable camera photo review. This has important implications for understanding the sequential and cumulative effects of cues on episodic remembering. An old-new ERP effect was also observed over visual regions for hits vs. correct rejections, highlighting the importance of visual processing not only for perception but also for the location of activated memory representations.
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Affiliation(s)
- N Khachatoorian
- Department of Psychology, City, University of London, London, UK
| | - C Loveday
- School of Social Sciences, University of Westminster, London, UK
| | - D Dima
- Department of Psychology, City, University of London, London, UK
| | - A Mair
- University of Hertfordshire, Hatfield, UK
| | | | - M A Conway
- Department of Psychology, City, University of London, London, UK
| | - C Haenschel
- Department of Psychology, City, University of London, London, UK
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28
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Ozubko JD, Sirianni LA, Ahmad FN, MacLeod CM, Addante RJ. Recallable but not recognizable: The influence of semantic priming in recall paradigms. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2021; 21:119-143. [PMID: 33409957 PMCID: PMC7994187 DOI: 10.3758/s13415-020-00854-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/20/2020] [Indexed: 11/08/2022]
Abstract
When people can successfully recall a studied word, they should be able to recognize it as having been studied. In cued-recall paradigms, however, participants sometimes correctly recall words in the presence of strong semantic cues but then fail to recognize those words as actually having been studied. Although the conditions necessary to produce this unusual effect are known, the underlying neural correlates have not been investigated. Across five experiments, involving both behavioral and electrophysiological methods (EEG), we investigated the cognitive and neural processes that underlie recognition failures. Experiments 1 and 2 showed behaviorally that assuming that recalled items can be recognized in cued-recall paradigms is a flawed assumption, because recognition failures occur in the presence of cues, regardless of whether those failures are measured. With event-related potentials (ERPs), Experiments 3 and 4 revealed that successfully recalled words that are recognized are driven by recollection at recall and then by a combination of recollection and familiarity at ensuing recognition. In contrast, recognition failures did not show that memory signature and may instead be driven by semantic priming at recall and followed at recognition stages by negative-going ERP effects consistent with implicit processes, such as repetition fluency. These results demonstrate that recall - long-characterized as predominantly reflecting recollection-based processing in episodic memory - may at times also be served by a confluence of implicit cognitive processes.
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Affiliation(s)
| | - Lindsey Ann Sirianni
- California State University, San Bernardino, San Bernardino, CA, USA
- Behavioral Health and Performance Laboratory, Biomedical Research and Environmental Sciences Division, Human Health and Performance Directorate, KBR/NASA Johnson Space Center, Houston, TX, USA
| | | | | | - Richard J Addante
- California State University, San Bernardino, San Bernardino, CA, USA.
- Department of Psychology, Florida Institute of Technology, 150 W. University Blvd., Melbourne, FL, 32901, USA.
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29
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Bader R, Mecklinger A, Meyer P. Usefulness of familiarity signals during recognition depends on test format: Neurocognitive evidence for a core assumption of the CLS framework. Neuropsychologia 2020; 148:107659. [PMID: 33069793 DOI: 10.1016/j.neuropsychologia.2020.107659] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 09/24/2020] [Accepted: 10/11/2020] [Indexed: 11/30/2022]
Abstract
Familiarity-based discrimination between studied items and similar foils in yes/no recognition memory tests is relatively poor. The complementary learning systems (CLS) framework explains this with the small difference in familiarity strength between targets and foils. The framework, however, also predicts that familiarity values of targets and corresponding similar foils are directly comparable - as long as they are presented side by side in a forced-choice corresponding (FCC) test. This is because in each trial, targets tend to be more familiar than their corresponding foils. In contrast, when forced-choice displays contain non-corresponding foils (FCNC) which are similar to other studied items, familiarity values are not directly comparable (as in yes/no-tasks). In a recognition memory task with pictures of objects, we found that the putative ERP correlate of familiarity, the mid-frontal old/new effect for targets vs. foils, was significantly larger in FCC compared to FCNC displays. Moreover, single-trial target-foil amplitude differences predicted the accuracy of the recognition judgment. This study supports the assumption of the CLS framework that the test format can influence the diagnostic reliability of familiarity. Moreover, it implies that the mid-frontal old/new effect does not reflect the difference in the familiarity signal between studied and non-studied items but the task-adequate assessment of this signal.
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Affiliation(s)
- Regine Bader
- Experimental Neuropsychology Unit, Department of Psychology, Saarland University, Saarbrücken, Germany.
| | - Axel Mecklinger
- Experimental Neuropsychology Unit, Department of Psychology, Saarland University, Saarbrücken, Germany
| | - Patric Meyer
- Department of Psychology, SRH University of Applied Sciences, Heidelberg, Germany
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30
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Zhou W, Nie A, Xiao Y, Liu S, Deng C. Is color source retrieval sensitive to emotion? Electrophysiological evidence from old/new effects. Acta Psychol (Amst) 2020; 210:103156. [PMID: 32801072 DOI: 10.1016/j.actpsy.2020.103156] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 11/30/2022] Open
Abstract
It has been proved that item memory and source memory are two dissociable processes, as reflected by differential influence at behavioral and electrophysiological levels, the latter being evidenced by the ERP old/new effects. Specially for source memory, the retrieval of color source may be unique from recollecting other types of contextual information, which can be seen from the late posterior negativity (LPN). However, the mediation of emotional valence on the old/new effects for verbal stimuli encoded in colors remains unknown. Adopting words of three emotional valences (i.e., positive, neutral, and negative), with their displayed colors serving as sources, the current experiment aimed to explore the sensitivity of old/new effects to emotion for both item memory and source memory. Results demonstrated that: the FN400 that reflects familiarity was recorded and it was sensitive to emotional valence across both memory tasks; the mediation of emotional valence was absent in recollection-reflected LPC, neither for item memory nor for source memory; an association between LPN and color source retrieval was confirmed, with reliable amplitudes for neutral words but not for emotional words. These data were discussed in terms of the dual-process model and other accounts. Future research directions were recommended.
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Affiliation(s)
- Wenyu Zhou
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China
| | - Aiqing Nie
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China.
| | - Yueyue Xiao
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China
| | - Si Liu
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China
| | - Can Deng
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China
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31
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Rivas-Fernández MÁ, Galdo-Álvarez S, Zurrón M, Díaz F, Lindín M. Spatiotemporal pattern of brain electrical activity related to immediate and delayed episodic memory retrieval. Neurobiol Learn Mem 2020; 175:107309. [PMID: 32890759 DOI: 10.1016/j.nlm.2020.107309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/30/2020] [Accepted: 08/26/2020] [Indexed: 10/23/2022]
Abstract
In the present study we used the event-related brain potentials (ERP) technique and eLORETA (exact low-resolution electromagnetic tomography) method in order to characterize and compare the performance and the spatiotemporal pattern of the brain electrical activity related to the immediate episodic retrieval of information (words) that is being learned relative to delayed episodic retrieval twenty-minutes later. For this purpose, 16 young participants carried out an old/new word recognition task with source memory (word colour). The task included an immediate memory phase (with three study-test blocks) followed (20 min later) by a delayed memory phase with one test block. The behavioural data showed progressive learning and consolidation of the information (old words) during the immediate memory phase. The ERP data to correctly identified old words for which the colour was subsequently recollected (H/H) compared to the correctly rejected new words (CR) showed: (1) a significant more positive-going potential in the 500-675 ms post-stimulus interval (parietal old/new effect, related to recollection), and (2) a more negative-going potential in the 950-1850 ms interval (LPN effect, related to retrieval and post-retrieval processes). The eLORETA data also revealed that the successful recognition of old words (and probably retrieval of their colour) was accompanied by activation of (1) left medial temporal (parahippocampal gyrus) and parietal regions involved in the recollection in both memory phases, and (2) prefrontal regions and the superior temporal gyrus (in the immediate and delayed memory phases respectively) involved in monitoring, evaluating and maintaining the retrieval products. These findings indicate that episodic memory retrieval depends on a network involving medial temporal lobe and frontal, parietal and temporal neocortical structures. That network was involved in immediate and delayed memory retrieval and during the course of memory consolidation, with greater activation of some nodes (mobilization of more processing resources) for the delayed respect to the immediate retrieval condition.
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Affiliation(s)
- Miguel Ángel Rivas-Fernández
- Laboratorio de Neurociencia Cognitiva, Departamento de Psicoloxía Clínica e Psicobioloxía, Universidade de Santiago de Compostela, Galicia, Spain.
| | - Santiago Galdo-Álvarez
- Laboratorio de Neurociencia Cognitiva, Departamento de Psicoloxía Clínica e Psicobioloxía, Universidade de Santiago de Compostela, Galicia, Spain.
| | - Montserrat Zurrón
- Laboratorio de Neurociencia Cognitiva, Departamento de Psicoloxía Clínica e Psicobioloxía, Universidade de Santiago de Compostela, Galicia, Spain.
| | - Fernando Díaz
- Laboratorio de Neurociencia Cognitiva, Departamento de Psicoloxía Clínica e Psicobioloxía, Universidade de Santiago de Compostela, Galicia, Spain.
| | - Mónica Lindín
- Laboratorio de Neurociencia Cognitiva, Departamento de Psicoloxía Clínica e Psicobioloxía, Universidade de Santiago de Compostela, Galicia, Spain.
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32
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Cui X, Ren W, Zheng Z, Li J. Repetitive Transcranial Magnetic Stimulation Improved Source Memory and Modulated Recollection-Based Retrieval in Healthy Older Adults. Front Psychol 2020; 11:1137. [PMID: 32636777 PMCID: PMC7316954 DOI: 10.3389/fpsyg.2020.01137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 05/04/2020] [Indexed: 01/15/2023] Open
Abstract
Source memory is one of the cognitive abilities that are most vulnerable to aging. Luckily, the brain plasticity could be modulated to counteract the decline. The repetitive transcranial magnetic stimulation (rTMS), a relatively non-invasive neuro-modulatory technique, could directly modulate neural excitability in the targeted cortical areas. Here, we are interested in whether the application of rTMS could enhance the source memory performance in healthy older adults. In addition, event-related potentials (ERPs) were employed to explore the specific retrieval process that rTMS could affect. Subjects were randomly assigned to either the rTMS group or the sham group. The rTMS group received 10 sessions (20 min per session) of 10 Hz rTMS applying on the right dorsolateral prefrontal cortex (i.e., F4 site), and the sham group received 10 sessions of sham stimulation. Both groups performed source memory tests before and after the intervention while the electroencephalogram (EEG) was recorded during the retrieval process. Behavioral results showed that the source memory performance was significantly improved after rTMS compared with the sham stimulation; ERPs results showed that during the retrieval phase, the left parietal old/new effect, which reflected the process of recollection common to both young and old adults, increased in the rTMS group compared with the sham stimulation group, whereas the late reversed old/new effect specific to the source retrieval of older adults showed similar attenuation after intervention in both groups. The present results suggested that rTMS could be an effective intervention to improve source memory performance in healthy older adults and that it selectively facilitated the youth-like recollection process during retrieval. This study was registered in the Chinese Clinical Trial Registry (ChiCTR) with the identifier chictr-ire-15006371.
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Affiliation(s)
- Xiaoyu Cui
- CAS Key Laboratory of Mental Health, Center on Aging Psychology, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Weicong Ren
- CAS Key Laboratory of Mental Health, Center on Aging Psychology, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.,Department of Psychology, Hebei Normal University, Shijiazhuang, China
| | - Zhiwei Zheng
- CAS Key Laboratory of Mental Health, Center on Aging Psychology, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Juan Li
- CAS Key Laboratory of Mental Health, Center on Aging Psychology, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.,Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
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33
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Age differences in the neural correlates of the specificity of recollection: An event-related potential study. Neuropsychologia 2020; 140:107394. [PMID: 32061829 DOI: 10.1016/j.neuropsychologia.2020.107394] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 12/13/2019] [Accepted: 02/10/2020] [Indexed: 01/26/2023]
Abstract
In young adults, the neural correlates of successful recollection vary with the specificity (or amount) of information retrieved. We examined whether the neural correlates of recollection are modulated in a similar fashion in older adults. We compared event-related potential (ERP) correlates of recollection in samples of healthy young and older adults (N = 20 per age group). At study, participants were cued to make one of two judgments about each of a series of words. Subsequently, participants completed a memory test for studied and unstudied words in which they first made a Remember/Know/New (RKN) judgment, followed by a source memory judgment when a word attracted a 'Remember' (R) response. In young adults, the 'left parietal effect' - a putative ERP correlate of successful recollection - was largest for test items endorsed as recollected (R judgment) and attracting a correct source judgment, intermediate for items endorsed as recollected but attracting an incorrect or uncertain source judgment, and, relative to correct rejections, absent for items endorsed as familiar only (K judgment). In marked contrast, the left parietal effect was not detectable in older adults. Rather, regardless of source accuracy, studied items attracting an R response elicited a sustained, centrally maximum negative-going deflection relative to both correct rejections and studied items where recollection failed (K judgment). A similar retrieval-related negativity has been described previously in older adults, but the present findings are among the few to link this effect specifically to recollection. Finally, relative to correct rejections, all classes of correctly recognized old items elicited an age-invariant, late-onsetting positive deflection that was maximal over the right frontal scalp. This finding, which replicates several prior results, suggests that post-retrieval monitoring operations were engaged to an equivalent extent in the two age groups. Together, the present results suggest that there are circumstances where young and older adults engage qualitatively distinct retrieval-related processes during successful recollection.
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34
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Nardini CL, Leynes PA. Encoding focus does not affect recollection of action memories: Event related potential (ERP) and modeling evidence. Int J Psychophysiol 2020; 147:9-17. [DOI: 10.1016/j.ijpsycho.2019.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/26/2019] [Accepted: 09/09/2019] [Indexed: 10/25/2022]
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35
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Canada KL, Geng F, Riggins T. Age- and performance-related differences in source memory retrieval during early childhood: Insights from event-related potentials. Dev Psychobiol 2019; 62:723-736. [PMID: 31876294 DOI: 10.1002/dev.21946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 11/06/2022]
Abstract
Across early childhood, children's ability to remember individual items and the details that accompany these items (i.e., episodic memory) improves greatly. Given that these behavioral improvements coincide with increases in age, effects of age and performance are often confounded. This study used event-related potentials (ERPs) to investigate age- and performance-related differences in the neural processes underlying the development of memory for details during early childhood. Using a source memory paradigm, ERP components related to episodic memory, the negative component (Nc), and late slow wave (LSW) were examined in 4- to 8-year-old children. Analyses focused on trials for which children correctly remembered the source related to an item versus trials where the item was remembered but the source was forgotten. Results revealed LSW, but not Nc, differed as a function of age and performance. Specifically, LSW effects were similar across source correct and source incorrect trials in all high-performing children and in low-performing older children; however, LSW effects differed across conditions in low-performing younger children. Results show developmental differences in retrieval processes across early childhood and highlight the importance of considering age and performance when examining electrophysiological correlates of episodic memory during development.
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Affiliation(s)
- Kelsey L Canada
- Department of Psychology, University of Maryland, College Park, Maryland, USA
| | - Fengji Geng
- Department of Curriculum and Learning Sciences, Zhejiang University, Hangzhou, China
| | - Tracy Riggins
- Department of Psychology, University of Maryland, College Park, Maryland, USA
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36
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Ye J, Nie A, Liu S. How do word frequency and memory task influence directed forgetting: An ERP study. Int J Psychophysiol 2019; 146:157-172. [PMID: 31655184 DOI: 10.1016/j.ijpsycho.2019.10.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 09/26/2019] [Accepted: 10/14/2019] [Indexed: 11/16/2022]
Abstract
In daily life, it is important either to remember sometimes or to intentionally forget on other occasions. The issue of forgetting following instructions (i.e. directed forgetting, DF) has been broadly studied; however, whether the frequency of contents would matter in DF remains unclear, and the understanding of its neural mechanism in both circumstances of item memory and source memory requires improvement in depth. For these purposes, the current study manipulated word frequency and memory task to investigate relevant behavioral features and neural activities of DF. Adopting event-related potential (ERP) technique, this study applied two-character Chinese words of two types of word frequency (high vs low) in the item-method DF paradigm. During encoding, we found that the increased frontal positivity, an index of active inhibition, was regulated by both word frequency and memory task, while the enhanced parietal positivity reflecting selective rehearsal didn't fluctuate across conditions. In the course of test, three ERP old/new effects were identified: the familiarity-based FN400 and the recollection-driven LPC were both modulated by word frequency and memory task, but the right frontal old/new effect was significant solely in source memory; also, these effects provided compelling evidence for the influences of word frequency and memory task on DF. Our results reinforce the differentiation between absolute familiarity and relative familiarity in memory, reveal their sensitivity to DF, and also support the dual-process interpretation. Implications are made to examine more influential factors for future research.
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Affiliation(s)
- Jingheng Ye
- Department of Psychology and Behavioral Science, Zhejiang University, Hangzhou, Zhejiang Province 310028, China
| | - Aiqing Nie
- Department of Psychology and Behavioral Science, Zhejiang University, Hangzhou, Zhejiang Province 310028, China.
| | - Si Liu
- Department of Psychology and Behavioral Science, Zhejiang University, Hangzhou, Zhejiang Province 310028, China
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37
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Detecting the neural correlates of episodic memory with mobile EEG: Recollecting objects in the real world. Neuroimage 2019; 193:1-9. [DOI: 10.1016/j.neuroimage.2019.03.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 02/26/2019] [Accepted: 03/06/2019] [Indexed: 11/17/2022] Open
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38
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Zheng Z, Lang M, Wang W, Xiao F, Li J. Episodic reconstruction contributes to high-confidence false recognition memories in older adults: Evidence from event-related potentials. Brain Cogn 2019; 132:13-21. [DOI: 10.1016/j.bandc.2019.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 02/06/2019] [Accepted: 02/08/2019] [Indexed: 10/27/2022]
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39
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Leynes PA, Crawford CJ. Event-related potential (ERP) evidence that encoding focus alters recollected features. Brain Cogn 2018; 127:42-50. [PMID: 30253265 DOI: 10.1016/j.bandc.2018.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 11/16/2022]
Abstract
Event-related potential (ERP) evidence suggests that encoding focus alters the quality of information bound in memory, which can affect source memory. In the present study, participants studied product images with blue or and yellow filters while focusing either on the self (self-focus) or on the color of the filtered image (other-focus). Self-focus encoding produced more positive encoding ERPs, greater recognition for old/new judgments, and a greater Late Positive Component (LPC; the putative neural correlate for recollection). Other-focus encoding led to a greater FN400 component suggesting that features (i.e., filter color and product image) were unitized and increased the familiarity used to make memory judgments. The results indicate that encoding focus can alter the balance of features bound in memory. Some features support a specific memory query (diagnostic recollection), whereas other features are from the past do not necessarily inform the memory query (non-diagnostic recollection). Thus, recollection is a complex process that depends on interactions between encoding processes, characteristics of the encountered information, and the broad context of the memory probe.
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40
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Zheng Z, Lang M, Wang W, Xiao F, Li J. Electrophysiological evidence for the effects of emotional content on false recognition memory. Cognition 2018; 179:298-310. [PMID: 30064656 DOI: 10.1016/j.cognition.2018.06.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 06/09/2018] [Accepted: 06/18/2018] [Indexed: 11/16/2022]
Abstract
Two competing hypotheses attempt to explain the effects of emotional content on the production of false memory. The conceptual relatedness account posits that negative emotion increases false memory by strengthening familiarity process, whereas the distinctiveness heuristic account postulates that negative emotion reduces false memory by influencing recollection process. Here, using the categorized pictures paradigm, we examined these hypotheses by investigating emotional influences on false recognition memory performance and the event-related potential (ERP) correlates of familiarity and recollection. Participants were presented with positive, neutral, or negative pictures from various categories during encoding and later completed a recognition test while electroencephalogram data were recorded. Behavioral results revealed lower corrected false recognition rates for negative and neutral pictures than for positive ones, with no significant difference between negative and neutral pictures. In addition, negative pictures were associated with a more conservative response bias in comparison with neutral and positive pictures. Importantly, ERP results revealed enhanced recollection-related parietal old/new effects for negative pictures relative to positive and neutral pictures, but comparable familiarity-related early frontal old/new effects across each type of emotional valence category during both true and false recognition. Our results suggest that emotionally negative content may affect production of false memory mainly by engaging a distinctiveness heuristic. Methodological implications of these findings are discussed.
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Affiliation(s)
- Zhiwei Zheng
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Minjia Lang
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Wei Wang
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Fengqiu Xiao
- China National Children's Center, Beijing, China
| | - Juan Li
- Center on Aging Psychology, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China; Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.
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Sommer K, Vita S, De Pascalis V. The late posterior negativity in episodic memory: A correlate of stimulus retrieval? Biol Psychol 2018; 133:44-53. [DOI: 10.1016/j.biopsycho.2018.01.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 01/26/2018] [Accepted: 01/26/2018] [Indexed: 10/18/2022]
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Ross RS, Smolen A, Curran T, Nyhus E. MAO-A Phenotype Effects Response Sensitivity and the Parietal Old/New Effect during Recognition Memory. Front Hum Neurosci 2018; 12:53. [PMID: 29487517 PMCID: PMC5816743 DOI: 10.3389/fnhum.2018.00053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/31/2018] [Indexed: 11/13/2022] Open
Abstract
A critical problem for developing personalized treatment plans for cognitive disruptions is the lack of understanding how individual differences influence cognition. Recognition memory is one cognitive ability that varies from person to person and that variation may be related to different genetic phenotypes. One gene that may impact recognition memory is the monoamine oxidase A gene (MAO-A), which influences the transcription rate of MAO-A. Examination of how MAO-A phenotypes impact behavioral and event-related potentials (ERPs) correlates of recognition memory may help explain individual differences in recognition memory performance. Therefore, the current study uses electroencephalography (EEG) in combination with genetic phenotyping of the MAO-A gene to determine how well-characterized ERP components of recognition memory, the early frontal old/new effect, left parietal old/new effect, late frontal old/new effect, and the late posterior negativity (LPN) are impacted by MAO-A phenotype during item and source memory. Our results show that individuals with the MAO-A phenotype leading to increased transcription have lower response sensitivity during both item and source memory. Additionally, during item memory the left parietal old/new effect is not present due to increased ERP amplitude for correct rejections. The results suggest that MAO-A phenotype changes EEG correlates of recognition memory and influences how well individuals differentiate between old and new items.
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Affiliation(s)
- Robert S Ross
- Neuroscience and Behavior Program, Department of Psychology, University of New Hampshire, Durham, NH, United States
| | - Andrew Smolen
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, United States
| | - Tim Curran
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Erika Nyhus
- Department of Psychology and Program in Neuroscience, Bowdoin College, Brunswick, ME, United States
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Küper K, Zimmer HD. The impact of perceptual changes to studied items on ERP correlates of familiarity and recollection is subject to hemispheric asymmetries. Brain Cogn 2018; 122:17-25. [PMID: 29396208 DOI: 10.1016/j.bandc.2018.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 12/28/2017] [Accepted: 01/11/2018] [Indexed: 01/24/2023]
Abstract
It is still unclear which role the right hemisphere (RH) preference for perceptually specific and the left hemisphere (LH) bias towards abstract memory representations play at the level of episodic memory retrieval. When stimulus characteristics hampered the retrieval of abstract memory representations, these hemispheric asymmetries have previously only modulated event-related potential (ERP) correlates of recollection (late positive complex, LPC), but not of familiarity (FN400). In the present experiment, we used stimuli which facilitated the retrieval of abstract memory representations. With the divided visual field technique, new items, identical repetitions and color-modified versions of incidentally studied object pictures were presented in either the right (RVF) or the left visual field (LVF). Participants performed a memory inclusion task, in which they had to categorize both identically repeated and color-modified study items as 'old'. Only ERP, but not behavioral data showed hemispheric asymmetries: Compared to identical repetitions, FN400 and LPC old/new effects for color-modified items were equivalent with RVF/LH presentation, but reduced with LVF/RH presentation. By promoting the use of abstract stimulus information for memory retrieval, we were thus able to show that hemispheric asymmetries in accessing abstract or specific memory representations can modulate ERP correlates of familiarity as well as recollection processes.
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Affiliation(s)
- Kristina Küper
- Aging Group, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany; Brain & Cognition Group, Department of Psychology, Saarland University, Saarbrücken, Germany.
| | - Hubert D Zimmer
- Brain & Cognition Group, Department of Psychology, Saarland University, Saarbrücken, Germany
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Medrano P, Nyhus E, Smolen A, Curran T, Ross RS. Individual differences in EEG correlates of recognition memory due to DAT polymorphisms. Brain Behav 2017; 7:e00870. [PMID: 29299388 PMCID: PMC5745248 DOI: 10.1002/brb3.870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/09/2017] [Accepted: 10/01/2017] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Although previous research suggests that genetic variation in dopaminergic genes may affect recognition memory, the role dopamine transporter expression may have on the behavioral and EEG correlates of recognition memory has not been well established. OBJECTIVES The study aims to reveal how individual differences in dopaminergic functioning due to genetic variations in the dopamine transporter gene influences behavioral and EEG correlates of recognition memory. METHODS Fifty-eight participants performed an item recognition task. Participants were asked to retrieve 200 previously presented words while brain activity was recorded with EEG. Regions of interest were established in scalp locations associated with recognition memory. Mean ERP amplitudes and event-related spectral perturbations when correctly remembering old items (hits) and recognizing new items (correct rejections) were compared as a function of dopamine transporter group. RESULTS Participants in the dopamine transporter group that codes for increased dopamine transporter expression (10/10 homozygotes) display slower reaction times compared to participants in the dopamine transporter group associated with the expression of fewer dopamine transporters (9R-carriers). 10/10 homozygotes further displayed differences in ERP and oscillatory activity compared to 9R-carriers. 10/10 homozygotes fail to display the left parietal old/new effect, an ERP signature of recognition memory associated with the amount of information retrieved. 10/10 homozygotes also displayed greater decreases of alpha and beta oscillatory activity during item memory retrieval compared to 9R-carriers. CONCLUSION Compared to 9R-carriers, 10/10 homozygotes display slower hit and correct rejection reaction times, an absence of the left parietal old/new effect, and greater decreases in alpha and beta oscillatory activity during recognition memory. These results suggest that dopamine transporter polymorphisms influence recognition memory.
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Affiliation(s)
- Paolo Medrano
- Psychology Department University of New Hampshire Durham NH USA
| | - Erika Nyhus
- Department of Psychology and Program in Neuroscience Bowdoin College Brunswick ME USA
| | - Andrew Smolen
- Institute for Behavioral Genetics University of Colorado Boulder Boulder CO USA
| | - Tim Curran
- Department of Psychology and Neuroscience University of Colorado Boulder Boulder CO USA
| | - Robert S Ross
- Psychology Department University of New Hampshire Durham NH USA.,Neuroscience and Behavior Program University of New Hampshire Durham NH USA
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45
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Juxtaposing the real-time unfolding of subjective experience and ERP neuromarker dynamics. Conscious Cogn 2017; 54:3-19. [DOI: 10.1016/j.concog.2017.05.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 01/08/2023]
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46
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Hawco C, Armony JL, Daskalakis ZJ, Berlim MT, Chakravarty MM, Pike GB, Lepage M. Differing Time of Onset of Concurrent TMS-fMRI during Associative Memory Encoding: A Measure of Dynamic Connectivity. Front Hum Neurosci 2017; 11:404. [PMID: 28855865 PMCID: PMC5557775 DOI: 10.3389/fnhum.2017.00404] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 07/21/2017] [Indexed: 02/02/2023] Open
Abstract
There has been a distinct shift in neuroimaging from localization of function into a more network based approach focused on connectivity. While fMRI has proven very fruitful for this, the hemodynamic signal is inherently slow which limits the temporal resolution of fMRI-only connectivity measures. The brain, however, works on a time scale of milliseconds. This study utilized concurrent transcranial magnetic stimulation (TMS)-fMRI in a novel way to obtain measures of dynamic connectivity by measuring changes in fMRI signal amplitude in regions distal to the site of stimulation following differing TMS onset times. Seventeen healthy subjects completed an associative memory encoding task known to involve the DLPFC, viewing pairs of objects which could be semantically related or unrelated. Three pulses of 10 Hz repetitive TMS were applied over the left DLPFC starting either at 200, 600, or 1000 ms after stimulus onset. Associations for related pairs were better remembered than unrelated pairs in a post-scan cued recall test. Differences in neural activity were assessed across different TMS onsets, separately for related and unrelated pairs. Time specific TMS effects were observed in several regions, including those associated with higher-level processing (lateral frontal, anterior cingulate), visual areas (occipital), and regions involved in semantic processing (e.g., left mid-temporal and medial frontal). Activity in the frontal cortex was decreased at 200 ms post-stimulus for unrelated pairs, and 1000 ms post-stimulus for related pairs. This suggests differences in the timing across conditions in which the DLFPC interacts with other PFC regions, consistent with the notion that the DLPFC is facilitating extended semantic processing for related items. This study demonstrates that time-varying TMS onset inside the MRI can be used to reliably measure fast dynamic connectivity with a temporal resolution in the hundreds of milliseconds.
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Affiliation(s)
- Colin Hawco
- Douglas Mental Health University Institute, McGill University, MontrealQC, Canada.,Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, TorontoON, Canada
| | - Jorge L Armony
- Douglas Mental Health University Institute, McGill University, MontrealQC, Canada
| | - Zafiris J Daskalakis
- Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, TorontoON, Canada
| | - Marcelo T Berlim
- Douglas Mental Health University Institute, McGill University, MontrealQC, Canada
| | - M Mallar Chakravarty
- Douglas Mental Health University Institute, McGill University, MontrealQC, Canada.,Departments of Psychiatry and Biological and Biomedical Engineering, McGill University, MontrealQC, Canada
| | - G Bruce Pike
- Department of Radiology, University of Calgary, CalgaryAB, Canada
| | - Martin Lepage
- Douglas Mental Health University Institute, McGill University, MontrealQC, Canada
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Herron JE. ERP evidence for the control of emotional memories during strategic retrieval. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2017; 17:737-753. [PMID: 28484940 PMCID: PMC5548819 DOI: 10.3758/s13415-017-0509-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Neural evidence for the strategic retrieval of task-relevant 'target' memories at the expense of less relevant 'nontarget' memories has been demonstrated across a wide variety of studies. In ERP studies, this evidence consists of the ERP correlate of recollection (i.e. the 'left parietal old/new effect') being evident for targets and attenuated for nontargets. It is not yet known, however, whether this degree of strategic control can be extended to emotionally valenced words, or whether these items instead reactivate associated memories. The present study used a paradigm previously employed to demonstrate the strategic retrieval of neutral words (Herron & Rugg, Psychonomic Bulletin and & Review, 10(3), 703--710, 2003b) to assess the effects of stimulus valence on behavioural and event-related potential (ERP) measures of strategic retrieval. While response accuracy and reaction times associated with targets were unaffected by valence, negative nontargets and new items were both associated with an elevated false alarm rate and longer RTs than their neutral equivalents. Both neutral and negative targets and nontargets elicited early old/new effects between 300 and 500 ms. Critically, whereas neutral and negative targets elicited robust and statistically equivalent left parietal old/new effects between 500 and 800 ms, these were absent for neutral and negative nontargets. A right frontal positivity associated with postretrieval monitoring was evident for neutral targets versus nontargets, for negative versus neutral nontargets, and for targets versus new items. It can therefore be concluded that the recollection of negatively valenced words is subject to strategic control during retrieval, and that postretrieval monitoring processes are influenced by emotional valence.
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Affiliation(s)
- Jane E Herron
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, CF24 4HQ, Wales, UK.
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48
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Bader R, Mecklinger A. Separating Event-related Potential Effects for Conceptual Fluency and Episodic Familiarity. J Cogn Neurosci 2017; 29:1402-1414. [DOI: 10.1162/jocn_a_01131] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Abstract
ERP old/new effects have been associated with different subprocesses of episodic recognition memory. The notion that recollection is reflected in the left parietal old/new effect seems to be uncontested. However, an association between episodic familiarity and the mid-frontal old/new effect is not uncontroversial. It has been argued that the mid-frontal old/new effect is functionally equivalent to the N400 and hence merely reflects differences in conceptual fluency between old and new items. Therefore, it is related to episodic familiarity only in situations in which conceptual fluency covaries with familiarity. Alternatively, the old/new effect in this time window reflects an interaction of episodic familiarity and conceptual processing with each making a unique functional contribution. To test this latter account, we manipulated conceptual fluency and episodic familiarity orthogonally in an incidental recognition test: Visually presented old and new words were preceded by either conceptually related or unrelated auditory prime words. If the mid-frontal old/new effect is functionally distinguishable from conceptual priming effects, an ERP contrast reflecting pure priming (correct rejections in the related vs. unrelated condition) and a contrast reflecting priming plus familiarity (hits in the related vs. correct rejections in the unrelated condition) should differ in scalp distribution. As predicted, the pure priming contrast had a right-parietal distribution, as typically observed for the N400 effect, whereas the priming plus familiarity contrast was significantly more frontally accentuated. These findings implicate that old/new effects in this time window are driven by unique functional contributions of episodic familiarity and conceptual processing.
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Keating J, Affleck-Brodie C, Wiegand R, Morcom AM. Aging, working memory capacity and the proactive control of recollection: An event-related potential study. PLoS One 2017; 12:e0180367. [PMID: 28727792 PMCID: PMC5519026 DOI: 10.1371/journal.pone.0180367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/14/2017] [Indexed: 11/17/2022] Open
Abstract
The present study investigated the role of working memory capacity (WMC) in the control of recollection in young and older adults. We used electroencephalographic event-related potentials (ERPs) to examine the effects of age and of individual differences in WMC on the ability to prioritize recollection according to current goals. Targets in a recognition exclusion task were words encoded using two alternative decisions. The left parietal ERP old/new effect was used as an electrophysiological index of recollection, and the selectivity of recollection measured in terms of the difference in its magnitude according to whether recognized items were targets or non-targets. Young adults with higher WMC showed greater recollection selectivity than those with lower WMC, while older adults showed nonselective recollection which did not vary with WMC. The data suggest that aging impairs the ability to engage cognitive control effectively to prioritize what will be recollected.
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Affiliation(s)
- Jessica Keating
- School of Psychology, Philosophy and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Caitlin Affleck-Brodie
- School of Psychology, Philosophy and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Ronny Wiegand
- School of Psychology, Philosophy and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Alexa M Morcom
- School of Psychology, Philosophy and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom.,Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, United Kingdom
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50
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Leynes PA, Mok BA. Encoding focus alters diagnostic recollection and event-related potentials (ERPs). Brain Cogn 2017; 117:1-11. [PMID: 28683338 DOI: 10.1016/j.bandc.2017.06.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/10/2017] [Accepted: 06/28/2017] [Indexed: 10/19/2022]
Abstract
The influence of encoding focus on source memory was investigated using event-related potentials (ERPs). Encoding was focused on the self (self-focus) or on the speaker (other-focus) while hearing words spoken in a male or female voice. Examination of the behavioral and ERP evidence suggests that encoding focus alters the amount of diagnostic recollection. Self-focus encoding produced more positive encoding ERPs, led to greater old/new recognition, and elicited a greater Late Positive Component (LPC; the putative neural correlate of recollection) during the source test. Other-focus encoding led to greater source memory and a smaller LPC amplitude. Collectively, the results suggest that encoding focus alters the information bound in the memory trace that leads to varying levels of source-diagnostic features. Drawing attention to the speaker facilitates binding of source-diagnostic features (i.e., voice), whereas self-focus encoding facilitates binding a host of non-diagnostic features. The results have important implications for situations that depend on encoding processes, such as false memory or classroom learning, and they provide evidence that the LPC tracks recollected details but not necessarily diagnostic recollection.
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