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Lavallé L, Dondé C, Gawęda Ł, Brunelin J, Mondino M. Impaired self-recognition in individuals with no full-blown psychotic symptoms represented across the continuum of psychosis: a meta-analysis. Psychol Med 2021; 51:2864-2874. [PMID: 32466806 DOI: 10.1017/s003329172000152x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Impairments in self-recognition (i.e. recognition of own thoughts and actions) have been repeatedly shown in individuals with schizophrenia. According to classical clinical characterizations, schizophrenia is included in a continuum encompassing a large range of genetic statuses, psychotic states and symptoms. The current meta-analysis aims to determine whether self-recognition is affected by individuals within the psychosis continuum. METHOD Three populations were considered: people with an at-risk mental state for psychosis (ARMS), hallucination-prone individuals and unaffected relatives of patients with schizophrenia. Eleven studies contrasted self-recognition between these three populations (n = 386) and healthy controls (n = 315) and four studies used correlational analysis to estimate comparable effects (n = 629). Eligible studies used experimental paradigms including source-monitoring and self-monitoring. RESULTS We observed significantly reduced self-recognition accuracy in these populations [g = -0.44 (-0.71 to -0.17), p = 0.002] compared to controls. No influence of the type of population, experimental paradigm or study design was observed. CONCLUSION The present analysis argues for self-recognition deficits in populations with no full-blown psychotic symptoms represented across the continuum of psychosis.
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Affiliation(s)
- Layla Lavallé
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France
- Lyon University, F-69000, France
- Centre Hospitalier le Vinatier, Batiment 416, 95 Bd Pinel, 69678Bron, France
| | - Clément Dondé
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France
- Lyon University, F-69000, France
- Centre Hospitalier le Vinatier, Batiment 416, 95 Bd Pinel, 69678Bron, France
| | - Łukasz Gawęda
- Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
| | - Jérome Brunelin
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France
- Lyon University, F-69000, France
- Centre Hospitalier le Vinatier, Batiment 416, 95 Bd Pinel, 69678Bron, France
| | - Marine Mondino
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France
- Lyon University, F-69000, France
- Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
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Thakral PP, Devitt AL, Brashier NM, Schacter DL. Linking creativity and false memory: Common consequences of a flexible memory system. Cognition 2021; 217:104905. [PMID: 34560420 PMCID: PMC8594559 DOI: 10.1016/j.cognition.2021.104905] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 11/28/2022]
Abstract
Episodic retrieval plays a functional-adaptive role in supporting divergent thinking, the ability to creatively combine different pieces of information. However, the same constructive memory process that provides a functional-adaptive benefit can also leave memory prone to error. In two experiments, we employed an individual differences approach to examine the relationship between different forms of creative thinking (divergent and convergent thinking) and false memory generation in the Deese-Roediger-McDermott paradigm. In Experiment 1, and replicating prior findings, false recognition was significantly predicted by convergent thinking performance. Critically, we also observed a novel predictive relationship between false recognition and quantitative metrics of divergent thinking performance. In Experiment 2, these findings were replicated and we further showed that false recall was predicted by quantitative metrics of divergent thinking. Our findings suggest that constructive memory processes link creative thinking with the production of memory errors.
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Affiliation(s)
- Preston P Thakral
- Department of Psychology and Neuroscience, Boston College, USA; Department of Psychology, Harvard University, USA.
| | - Aleea L Devitt
- School of Psychology, The University of Waikato, New Zealand
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Symeonidou N, Kuhlmann BG. Better memory for emotional sources? A systematic evaluation of source valence and arousal in source memory. Cogn Emot 2021; 36:300-316. [PMID: 34843428 DOI: 10.1080/02699931.2021.2008323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Emotion-enhanced memory (EEM) describes the robust memory advantage of emotional over non-emotional stimuli. While extensively investigated with emotional items, it is unclear whether the EEM effect extends to source memory for a neutral item's emotional context. In two pre-registered studies, we systematically manipulated source valence (positive, negative) between participants and source arousal (high, low, neutral-low) within participants. In Experiment 1 (lab study, N = 80), we used emotional sound sources and presented them together with neutral pictures as items. In Experiment 2 (online study, N = 172), we used emotional background pictures with superimposed neutral item words to similarly manipulate source emotionality. Multinomial model-based analysis showed no general effects of valence or arousal on source memory across both experiments. Source memory was impaired for the negative high-arousing source in Experiment 1 but this did not replicate in Experiment 2. Altogether, we conclude that there are no memory-enhancing effects of source emotionality (valence, arousal, or any specific combination thereof) on source memory, dissociating emotionality effects between source and item memory. Additionally, we propose that material-dependent influences carry more weight if the used emotional material is limited in number, as is the case in the standard source-monitoring paradigm employing few sources only.
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Tautvydaitė D, Adam-Darqué A, Manuel AL, Ptak R, Schnider A. Rapid Sequential Implication of the Human Medial Temporal Lobe in Memory Encoding and Recognition. Front Behav Neurosci 2021; 15:684647. [PMID: 34744649 PMCID: PMC8570128 DOI: 10.3389/fnbeh.2021.684647] [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: 03/23/2021] [Accepted: 09/29/2021] [Indexed: 11/13/2022] Open
Abstract
The medial temporal lobe (MTL) is crucial for memory encoding and recognition. The time course of these processes is unknown. The present study juxtaposed encoding and recognition in a single paradigm. Twenty healthy subjects performed a continuous recognition task as brain activity was monitored with a high-density electroencephalography. The task presented New pictures thought to evoke encoding. The stimuli were then repeated up to 4 consecutive times to produce over-familiarity. These repeated stimuli served as "baseline" for comparison with the other stimuli. Stimuli later reappeared after 9-15 intervening items, presumably associated with new encoding and recognition. Encoding-related differences in evoked response potential amplitudes and in spatiotemporal analysis were observed at 145-300 ms, whereby source estimation indicated MTL and orbitofrontal activity from 145 to 205 ms. Recognition-related activity evoked by late repetitions occurred at 405-470 ms, implicating the MTL and neocortical structures. These findings indicate that encoding of information is initiated before it is recognized. The result helps to explain modifications of memories over time, including false memories, confabulation, and consolidation.
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Affiliation(s)
- Domilė Tautvydaitė
- Laboratory of Cognitive Neurorehabilitation, Division of Neurorehabilitation, Department of Clinical Neuroscience, University Hospital and University of Geneva, Geneva, Switzerland
| | - Alexandra Adam-Darqué
- Laboratory of Cognitive Neurorehabilitation, Division of Neurorehabilitation, Department of Clinical Neuroscience, University Hospital and University of Geneva, Geneva, Switzerland
| | - Aurélie L Manuel
- Laboratory of Cognitive Neurorehabilitation, Division of Neurorehabilitation, Department of Clinical Neuroscience, University Hospital and University of Geneva, Geneva, Switzerland
| | - Radek Ptak
- Laboratory of Cognitive Neurorehabilitation, Division of Neurorehabilitation, Department of Clinical Neuroscience, University Hospital and University of Geneva, Geneva, Switzerland
| | - Armin Schnider
- Laboratory of Cognitive Neurorehabilitation, Division of Neurorehabilitation, Department of Clinical Neuroscience, University Hospital and University of Geneva, Geneva, Switzerland
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Wang J, Smeets T, Otgaar H, Howe ML. Manipulating Memory Associations Minimizes Avoidance Behavior. Front Behav Neurosci 2021; 15:746161. [PMID: 34803623 PMCID: PMC8595481 DOI: 10.3389/fnbeh.2021.746161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/13/2021] [Indexed: 11/14/2022] Open
Abstract
Memories of the past can guide humans to avoid harm. The logical consequence of this is if memories are changed, avoidance behavior should be affected. More than 80 years of false memory research has shown that people's memory can be re-constructed or distorted by receiving suggestive false feedback. The current study examined whether manipulating people's memories of learned associations would impact fear related behavior. A modified sensory preconditioning paradigm of fear learning was used. Critically, in a memory test after fear learning, participants received verbal false feedback to change their memory associations. After receiving the false feedback, participants' beliefs and memories ratings for learned associations decreased significantly compared to the no feedback condition. Furthermore, in the false feedback condition, participants no longer showed avoidance to fear conditioned stimuli and relevant subjective fear ratings dropped significantly. Our results suggest that manipulating memory associations might minimize avoidance behavior in fear conditioning. These data also highlight the role of memory in higher order conditioning.
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Affiliation(s)
- Jianqin Wang
- Laboratory of Social Psychology and Behavioral Science, Department of Psychology, Fudan University, Shanghai, China
| | - Tom Smeets
- Department of Medical and Clinical Psychology, Tilburg University, Tilburg, Netherlands
| | - Henry Otgaar
- Faculty of Law, Katholieke Universiteit Leuven, Leuven, Belgium
- Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Mark L. Howe
- Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands
- Department of Psychology, City University of London, London, United Kingdom
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Individual Differences in Disqualifying Monitoring Underlie False Recognition of Associative and Conjunction Lures. Mem Cognit 2021; 50:751-764. [PMID: 34713420 DOI: 10.3758/s13421-021-01243-5] [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] [Accepted: 09/18/2021] [Indexed: 11/08/2022]
Abstract
The current study leveraged experimental and individual differences methodology to examine whether false memories across different list-learning tasks arise from a common cause. Participants completed multiple false memory (associative and conjunction lure), working memory (operation and reading span), and source monitoring (verbal and picture) tasks. Memory discriminability in the associative and conjunction tasks loaded onto a single (general) factor and were unaffected by warnings provided at encoding. Consistent with previous research, source-monitoring ability fully mediated the relation between working memory and false memories. Moreover, individuals with higher source monitoring-ability were better able to recall contextual information from encoding to correctly reject lures. These results suggest that there are stable individual differences in false remembering across tasks. The commonality across tasks may be due, at least in part, to the ability to effectively use disqualifying monitoring processes.
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Intact context memory performance in adults with autism spectrum disorder. Sci Rep 2021; 11:20482. [PMID: 34650189 PMCID: PMC8516951 DOI: 10.1038/s41598-021-99898-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 09/24/2021] [Indexed: 11/13/2022] Open
Abstract
Research on memory in autism spectrum disorder (ASD) finds increased difficulty encoding contextual associations in episodic memory and suggests executive dysfunction (e.g., selective attention, cognitive flexibility) and deficient metacognitive monitoring as potential contributing factors. Findings from our lab suggest that age-related impairments in selective attention contribute to those in context memory accuracy and older adults tended to show dependence in context memory accuracy between relevant and irrelevant context details (i.e., hyper-binding). Using an aging framework, we tested the effects of selective attention on context memory in a sample of 23 adults with ASD and 23 typically developed adults. Participants studied grayscale objects flanked by two types of contexts (color, scene) on opposing sides and were told to attend to only one object-context relationship, ignoring the other context. At test, participants made object and context recognition decisions and judgment of confidence decisions allowing for an evaluation of context memory performance, hyper-binding, and metacognitive performance for context judgments in a single task. Results showed that adults with ASD performed similarly to typically developed adults on all measures. These findings suggest that context memory performance is not always disrupted in adults with ASD, even when demands on selective attention are high. We discuss the need for continued research to evaluate episodic memory in a wider variety of adults with ASD.
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Guzey M, Yılmaz B. False recognitions in the DRM paradigm: the role of stress and warning. Cogn Process 2021; 23:99-107. [PMID: 34618255 PMCID: PMC8496149 DOI: 10.1007/s10339-021-01062-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 09/16/2021] [Indexed: 11/30/2022]
Abstract
For the last decades, the factors increasing or decreasing the frequency of false memories have been of great interest. Some research also examined the effect of stress and warning on the true and false recognitions; however, so far most of the studies have yielded contradictory results or seems inadequate to understand the effect of these factors on false memory phenomenon. The purpose of this study is to examine the joint effects of stress and warning on the frequency of false and true memories elicited by the list-learning paradigm. The word lists derived from the Deese–Roediger–McDermott (DRM) paradigm were used in order to measure false and true recognition rates. Participants (N = 126) were exposed to either the Trier Social Stress Test (a stress condition) or a filler task at the beginning of the experiment (no-stress condition). Then, they were either subjected to a warning about false memories before DRM (pre-warning condition), subjected to a warning about false memories after DRM (post-warning condition), or given no warning at all (no-warning condition). Results showed that stress had a statistically significant effect on true recognition but not on false recognition. Furthermore, warning given after the DRM lists had a decreasing effect on the frequency of false memories. No significant interaction effect between stress and warning was found. Although our hypotheses were not confirmed, this study can contribute to the existing body of research by providing evidence that stress and warning have differential effects on both true and false memories derived from the DRM paradigm.
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Affiliation(s)
- Melike Guzey
- Department of Psychology, Faculty of Language, History and Geography, Ankara University, Sıhhiye, 06100, Ankara, Turkey.
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Guo J, Shubeck K, Hu X. Relationship Between Item and Source Memory: Explanation of Connection-Strength Model. Front Psychol 2021; 12:691577. [PMID: 34659007 PMCID: PMC8511408 DOI: 10.3389/fpsyg.2021.691577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/11/2021] [Indexed: 11/24/2022] Open
Abstract
The controversy in the relationship between item memory and source memory is a focus of episodic memory. Some studies show the trade-off between item memory and source memory, some show the consistency between them, and others show the independence between them. This review attempts to point out the connection-strength model, implying the different types and strengths of the important role of the item-source connections in the relationship between item memory and source memory, which is based on the same essence in the unified framework. The logic of the model is that when item memory and source memory share the same or relevant connection between item and source, they positively connect, or they are independently or negatively connected. This review integrates empirical evidence from the domains of cognition, cognitive neuroscience, and mathematical modeling to validate our hypothesis.
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Affiliation(s)
- Junjun Guo
- School of Psychology, Central China Normal University, Wuhan, China
| | - Keith Shubeck
- Department of Psychology, The University of Memphis, Memphis, TN, United States
- Institute for Intelligent Systems, The University of Memphis, Memphis, TN, United States
| | - Xiangen Hu
- School of Psychology, Central China Normal University, Wuhan, China
- Department of Psychology, The University of Memphis, Memphis, TN, United States
- Institute for Intelligent Systems, The University of Memphis, Memphis, TN, United States
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60
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Perret M, Lavallé L, Haesebaert F, Suaud-Chagny MF, Brunelin J, Mondino M. Neuroanatomical correlates of reality monitoring in patients with schizophrenia and auditory hallucinations. Eur Psychiatry 2021; 64:e58. [PMID: 34548121 PMCID: PMC8516745 DOI: 10.1192/j.eurpsy.2021.2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Reality-monitoring process enables to discriminate memories of internally generated information from memories of externally derived information. Studies have reported impaired reality-monitoring abilities in schizophrenia patients with auditory hallucinations (AHs), specifically with an exacerbated externalization bias, as well as alterations in neural activity within frontotemporoparietal areas. In healthy subjects, impaired reality-monitoring abilities have been associated with reduction of the paracingulate sulcus (PCS). The current study aimed to identify neuroanatomical correlates of reality monitoring in patients with schizophrenia. Methods Thirty-five patients with schizophrenia and AHs underwent a reality-monitoring task and a 3D anatomical MRI scan at 1.5 T. PCS lengths were measured separately for each hemisphere, and whole-brain voxel-based morphometry analyses were performed using the Computational Anatomy Toolbox (version 12.6) to evaluate the gray-matter volume (GMV). Partial correlation analyses were used to investigate the relationship between reality-monitoring and neuroanatomical outcomes (PCS length and GMV), with age and intracranial volume as covariates. Results The right PCS length was positively correlated with reality-monitoring accuracy (Spearman’s ρ = 0.431, p = 0.012) and negatively with the externalization bias (Spearman’s ρ = −0.379, p = 0.029). Reality-monitoring accuracy was positively correlated with GMV in the right angular gyrus, whereas externalization bias was negatively correlated with GMV in the left supramarginal gyrus/superior temporal gyrus, in the right lingual gyrus and in the bilateral inferior temporal/fusiform gyri (voxel-level p < 0.001 and cluster-level p < 0.05, FDR-corrected). Conclusions Reduced reality-monitoring abilities were significantly associated with shorter right PCS and reduced GMV in temporal and parietal regions of the reality-monitoring network in schizophrenia patients with AHs.
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Affiliation(s)
- Mélanie Perret
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Layla Lavallé
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Frédéric Haesebaert
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Marie-Françoise Suaud-Chagny
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Jérôme Brunelin
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Marine Mondino
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
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Taing AS, Mundy ME, Ponsford JL, Spitz G. Temporal lobe activation during episodic memory encoding following traumatic brain injury. Sci Rep 2021; 11:18830. [PMID: 34552133 PMCID: PMC8458357 DOI: 10.1038/s41598-021-97953-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 08/30/2021] [Indexed: 11/09/2022] Open
Abstract
The temporal lobes are critical for encoding and retrieving episodic memories. The temporal lobes are preferentially disrupted following a traumatic brain injury (TBI), likely contributing to the difficulties observed in episodic memory. However, the underlying neural changes that precipitate or maintain these difficulties in individuals with TBI remains poorly understood. Here, we use functional magnetic resonance imaging (fMRI) to interrogate the relationship between temporal lobe activation and encoding of episodic stimuli. Participants encoded face, scene, and animal stimuli during an fMRI run. In an out-of-scanner task, participants were required to correctly identify previously displayed stimuli over two presentation runs (each in-scanner stimuli presented twice). Forty-three patients with moderate-severe TBI were recruited and compared with 38 demographically similar healthy controls. The pattern of behavioural performance between groups depended on the stimuli presentation run. The TBI group demonstrated poorer episodic memory for faces and scenes during the first presentation, but not the second presentation. When episodic memory was analysed across all presentation runs, behavioural deficits were only apparent for faces. Interestingly, processing of faces emerged as the only between group-difference on fMRI, whereby TBI participants had an increased signal in the middle temporal gyrus extending to the superior temporal sulcus. These findings provide evidence to suggest that following TBI: (a) episodic memory is preferentially impaired for complex stimuli such as faces, and (b) robust behavioural inefficiencies are reflected in increased activation in specific temporal lobe structures during encoding.
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Affiliation(s)
- Abbie S Taing
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, 3800, Australia
- Monash Epworth Rehabilitation Research Centre, 185-187 Hoddle Street, Richmond, VIC, 3121, Australia
| | - Matthew E Mundy
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, 3800, Australia
| | - Jennie L Ponsford
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, 3800, Australia
- Monash Epworth Rehabilitation Research Centre, 185-187 Hoddle Street, Richmond, VIC, 3121, Australia
| | - Gershon Spitz
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, 3800, Australia.
- Monash Epworth Rehabilitation Research Centre, 185-187 Hoddle Street, Richmond, VIC, 3121, Australia.
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Kusztrits I, Marquardt L, Hugdahl K, Hirnstein M. Transcranial direct current stimulation (tDCS) enhances internal source monitoring abilities in healthy participants. PLoS One 2021; 16:e0257010. [PMID: 34529676 PMCID: PMC8445448 DOI: 10.1371/journal.pone.0257010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 08/20/2021] [Indexed: 11/18/2022] Open
Abstract
Source monitoring refers to the ability to identify the origin of a memory, for example, whether you remember saying something or thinking about it, and confusions of these sources have been associated with the experience of auditory verbal hallucinations (AVHs). Both AVHs and source confusions are reported to originate from dysfunctional brain activations in the prefrontal cortex (PFC) and the superior temporal gyrus (STG); specifically, it is assumed that a hypoactive PFC and a hyperactive STG gives rise to AVHs and source confusions. We set out to test this assumption by trying to mimic this hypertemporal/hypofrontal model in healthy individuals with transcranial direct current stimulation (tDCS): the inhibitory cathode was placed over the left PFC and the excitatory anode over the left dorsolateral STG. Participants completed a reality monitoring task (distinguishing between external and internal memory sources) and an internal source monitoring task (distinguishing between two or more internal memory sources) in two separate experiments (offline vs. online tDCS). In the offline experiment (n = 34), both source monitoring tasks were completed after tDCS stimulation, and in the online experiment (n = 27) source monitoring tasks were completed while simultaneously being stimulated with tDCS. We found that internal source monitoring abilities were significantly enhanced during active online tDCS, while reality monitoring abilities were unaffected by stimulation in both experiments. We speculate, based on combining the present findings with previous studies, that there might be different brain areas involved in reality and internal source monitoring. While internal source monitoring seems to involve speech production areas, specifically Broca’s area, as suggested in the present study, reality monitoring seems to rely more on the STG and DLPFC, as shown in other studies of the field.
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Affiliation(s)
- Isabella Kusztrits
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- NORMENT Norwegian Centre for Mental Health Disorders Research, University of Bergen and Haukeland University Hospital, Bergen, Norway
- * E-mail:
| | - Lynn Marquardt
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- NORMENT Norwegian Centre for Mental Health Disorders Research, University of Bergen and Haukeland University Hospital, Bergen, Norway
| | - Kenneth Hugdahl
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- NORMENT Norwegian Centre for Mental Health Disorders Research, University of Bergen and Haukeland University Hospital, Bergen, Norway
- Department of Radiology, Haukeland University Hospital, Bergen, Norway
- Division of Psychiatry, Haukeland University Hospital, Bergen, Norway
| | - Marco Hirnstein
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- NORMENT Norwegian Centre for Mental Health Disorders Research, University of Bergen and Haukeland University Hospital, Bergen, Norway
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Neural Correlates of Aberrant Salience and Source Monitoring in Schizophrenia and At-Risk Mental States-A Systematic Review of fMRI Studies. J Clin Med 2021; 10:jcm10184126. [PMID: 34575237 PMCID: PMC8468329 DOI: 10.3390/jcm10184126] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/22/2021] [Accepted: 09/07/2021] [Indexed: 01/03/2023] Open
Abstract
Cognitive biases are an important factor contributing to the development and symptom severity of psychosis. Despite the fact that various cognitive biases are contributing to psychosis, they are rarely investigated together. In the current systematic review, we aimed at investigating specific and shared functional neural correlates of two important cognitive biases: aberrant salience and source monitoring. We conducted a systematic search of fMRI studies of said cognitive biases. Eight studies on aberrant salience and eleven studies on source monitoring were included in the review. We critically discussed behavioural and neuroimaging findings concerning cognitive biases. Various brain regions are associated with aberrant salience and source monitoring in individuals with schizophrenia and the risk of psychosis. The ventral striatum and insula contribute to aberrant salience. The medial prefrontal cortex, superior and middle temporal gyrus contribute to source monitoring. The anterior cingulate cortex and hippocampus contribute to both cognitive biases, constituting a neural overlap. Our review indicates that aberrant salience and source monitoring may share neural mechanisms, suggesting their joint role in producing disrupted external attributions of perceptual and cognitive experiences, thus elucidating their role in positive symptoms of psychosis. Account bridging mechanisms of these two biases is discussed. Further studies are warranted.
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Bolling AJ, King VL, Enam T, McDonough IM. Using transcranial direct current stimulation (tDCS) on the dorsolateral prefrontal cortex to promote long-term foreign language vocabulary learning. Brain Cogn 2021; 154:105789. [PMID: 34509124 DOI: 10.1016/j.bandc.2021.105789] [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: 01/15/2021] [Revised: 08/22/2021] [Accepted: 08/27/2021] [Indexed: 11/26/2022]
Abstract
Transcranial direct current stimulation (tDCS) on the dorsolateral prefrontal cortex (DLPFC) was used to improve foreign-langue learning while using mental imagery. Participants underwent two sessions of 1 mA, 1.5 mA, or sham stimulation prior to learning Swahili-English word pairs two consecutive days. During learning, participants were encouraged to create a mental image of the associated English word. Twenty-four hours after learning and one week later, participants received a cued recall test. A linear dose-response effect of stimulation was found across both tests that occurred long after the immediate effects of stimulation. Follow-up comparisons revealed that only the 1.5 mA condition differed from the sham group. Exploratory moderating effects revealed interactions with sleep quality and handedness. Those with poorer sleep and who were left-handed showed greater recall after 1.5 mA of stimulation than those with better sleep and right-handers. A follow-up behavioral study probing strategy usage indicated that mental imagery strategy use did not strongly impact learning but point to other possible mechanisms including the importance of attending to multimodal perceptual details and memory consolidation. This preliminary evidence supports the role of the DLPFC or connected regions in foreign language vocabulary learning and verbal memory encoding.
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Affiliation(s)
- A Jordan Bolling
- Department of Psychology, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Victoria L King
- Department of Psychology, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Tasnuva Enam
- Department of Psychology, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Ian M McDonough
- Department of Psychology, The University of Alabama, Tuscaloosa, AL 35487, USA.
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65
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Li M, Nie A. Is there a self-positivity bias for destination memory? Behavioral and ERP evidence. Acta Psychol (Amst) 2021; 219:103396. [PMID: 34403980 DOI: 10.1016/j.actpsy.2021.103396] [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: 05/25/2020] [Revised: 08/04/2021] [Accepted: 08/10/2021] [Indexed: 11/30/2022] Open
Abstract
Despite extensive existing research concerning source memory (i.e., memory for what has been said, given, or done to us by whom) during social interaction, destination memory (i.e., memory for what we have said, given, or done to whom) remains to be explored. Furthermore, although destination memory is believed to involve a self-reference process, it remains unclear whether such a process is sufficient to trigger a self-positivity bias. To address these issues, we combined the destination memory paradigm with the social dilemma game to compare destination memory for cooperation and cheating. Both behavioral performance and the neural index of successful encoding, the Dm (difference due to memory) effect, were concerned. Behaviorally, destination memory for cooperative, cheating, and neutral behaviors decreased successively. For neural activities, the pre-400 ms Dm effects during 200-400 ms were non-significant under any condition. In the latency windows of 400-800 ms and 800-1000 ms, the post-400 ms Dm effects were reliably observed for both cooperative and cheating behaviors and were statistically comparable between the two behavior types, but the effect was not obtained for neutral behaviors. These data suggest a self-positivity bias in the behavioral performance but not in the encoding-related Dm effects of destination memory.
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Affiliation(s)
- Mengsi Li
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China
| | - Aiqing Nie
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China.
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66
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The human source memory system struggles to distinguish virtual reality and reality. COMPUTERS IN HUMAN BEHAVIOR REPORTS 2021. [DOI: 10.1016/j.chbr.2021.100111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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67
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Hokett E, Arunmozhi A, Campbell J, Verhaeghen P, Duarte A. A systematic review and meta-analysis of individual differences in naturalistic sleep quality and episodic memory performance in young and older adults. Neurosci Biobehav Rev 2021; 127:675-688. [PMID: 34000349 PMCID: PMC8330880 DOI: 10.1016/j.neubiorev.2021.05.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 01/20/2023]
Abstract
Better sleep quality has been associated with better episodic memory performance in young adults. However, the strength of sleep-memory associations in aging has not been well characterized. It is also unknown whether factors such as sleep measurement method (e.g., polysomnography, actigraphy, self-report), sleep parameters (e.g., slow wave sleep, sleep duration), or memory task characteristics (e.g., verbal, pictorial) impact the strength of sleep-memory associations. Here, we assessed if the aforementioned factors modulate sleep-memory relationships. Across age groups, sleep-memory associations were similar for sleep measurement methods, however, associations were stronger for PSG than self-report. Age group moderated sleep-memory associations for certain sleep parameters. Specifically, young adults demonstrated stronger positive sleep-memory associations for slow wave sleep than the old, while older adults demonstrated stronger negative associations between greater wake after sleep onset and poorer memory performance than the young. Collectively, these data show that young and older adults maintain similar strength in sleep-memory relationships, but age impacts the specific sleep correlates that contribute to these relationships.
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68
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Elbich DB, Webb CE, Dennis NA. The influence of item familiarization on neural discriminability during associative memory encoding and retrieval. Brain Cogn 2021; 152:105760. [PMID: 34126588 DOI: 10.1016/j.bandc.2021.105760] [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: 08/03/2020] [Revised: 04/13/2021] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
Associative memory requires one to encode and form memory representations not just for individual items, but for the association or link between those items. Past work has suggested that associative memory is facilitated when individual items are familiar rather than simultaneously learning the items and their associative link. The current study employed multivoxel pattern analyses (MVPA) to investigate whether item familiarization prior to associative encoding affects the distinctiveness of neural patterns, and whether that distinctiveness is also present during associative retrieval. Our results suggest that prior exposure to item stimuli impacts the representations of their shared association compared to stimuli that are novel at the time of associative encoding throughout most of the associative memory network. While this distinction was also present at retrieval, the overall extent of the difference was diminished. Overall the results suggest that stimulus familiarity influences the representation of associative pairings during memory encoding and retrieval, and the pair-specific representation is maintained across memory phases irrespective of this distinction.
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Affiliation(s)
- Daniel B Elbich
- Department of Neurology, The Pennsylvania State University, Hershey, PA, United States; Department of Psychology, The Pennsylvania State University, University Park, PA, United States
| | - Christina E Webb
- Department of Psychology, The Pennsylvania State University, University Park, PA, United States; Center for Vital Longevity, School of Behavioral and Brain Sciences, The University of Texas at Dallas, Dallas, TX, United States
| | - Nancy A Dennis
- Department of Psychology, The Pennsylvania State University, University Park, PA, United States.
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69
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Roberts KP, Wood KR, Wylie BE. Children's ability to edit their memories when learning about the environment from credible and noncredible websites. COGNITIVE RESEARCH-PRINCIPLES AND IMPLICATIONS 2021; 6:42. [PMID: 34050824 PMCID: PMC8164076 DOI: 10.1186/s41235-021-00305-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 05/07/2021] [Indexed: 11/17/2022]
Abstract
One of the many sources of information easily available to children is the internet and the millions of websites providing accurate, and sometimes inaccurate, information. In the current investigation, we examined children’s ability to use credibility information about websites when learning about environmental sustainability. In two studies, children studied two different websites and were tested on what they had learned a week later using a multiple-choice test containing both website items and new distracters. Children were given either no information about the websites or were told that one of the websites (the noncredible website) contained errors and they should not use any information from that website to answer the test. In both studies, children aged 7- to 9-years reported information from the noncredible website even when instructed not to, whereas the 10- to 12-year-olds used the credibility warning to ‘edit out’ information that they had learned from the noncredible website. In Study 2, there was an indication that the older children spontaneously assessed the credibility of the website if credibility markers were made explicit. A plausible explanation is that, although children remembered information from the websites, they needed explicit instruction to bind the website content with the relevant source (the individual websites). The results have implications for children’s learning in an open-access, digital age where information comes from many sources, credible and noncredible. Education in credibility evaluation may enable children to be critical consumers of information thereby resisting misinformation provided through public sources.
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Affiliation(s)
- Kim P Roberts
- Wilfrid Laurier University, 75 University Ave W, Waterloo, ON, N2L 3C5, Canada.
| | - Katherine R Wood
- Wilfrid Laurier University, 75 University Ave W, Waterloo, ON, N2L 3C5, Canada.,Carleton University, 1125 Colonel By Dr, Ottawa, ON, K1S 5B6, Canada
| | - Breanne E Wylie
- Wilfrid Laurier University, 75 University Ave W, Waterloo, ON, N2L 3C5, Canada.,Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON, L2S 3A1, Canada
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70
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Is there more to metamemory? An argument for two specialized monitoring abilities. Psychon Bull Rev 2021; 28:1657-1667. [PMID: 33948916 DOI: 10.3758/s13423-021-01930-z] [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] [Accepted: 04/09/2021] [Indexed: 11/08/2022]
Abstract
Metamemory is the process of monitoring and controlling one's beliefs, knowledge, and mental processes of memory. One fundamental question is whether the monitoring component of this theory should be considered as only one ability or an umbrella of more specialized abilities. In the current study, we aimed to understand the structure of metamemory monitoring by testing unitary versus specialized measurement models of metamemory. Monitoring accuracy and mean ratings from four common monitoring judgments across different stimulus presentation pairs were calculated to create latent factors for each judgment using structural equation modeling. Our results suggest that although each of the monitoring judgments was correlated with one another, monitoring may be composed of two distinct abilities: one occurring during initial presentation and one occurring at retrieval. These results can help explain prior behavioral and brain dissociations between predictions at encoding and retrieval in terms of experimental and material manipulations. We caution against the conceptualization and use of metamemory monitoring as a unitary construct.
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71
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Jackson J, Donaldson DI, Dering B. The morning after the night before: Alcohol-induced blackouts impair next day recall in sober young adults. PLoS One 2021; 16:e0250827. [PMID: 33939715 PMCID: PMC8092761 DOI: 10.1371/journal.pone.0250827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 04/14/2021] [Indexed: 11/18/2022] Open
Abstract
Binge-drinking in adolescents and young adults is a widespread problem, however, an often unreported consequence of binge-drinking behaviour is an alcohol-induced memory blackout (MBO). An MBO is a transient amnesic event resulting from rapid, excessive alcohol consumption. Here, we examine the short-term impact of an alcohol-induced MBO event (testing < 20 hours after blackout) on memory performance in people who have experienced a high volume of MBOs. In addition, we aimed to test the hypothesis that people who experience a high volume of MBOs may have poorer recall than non-blackout controls in either sober or intoxicated states. Three episodic memory paradigms consisting of free recall, serial recall, and depth of encoding tasks, were conducted by a group of alcohol drinkers who had never experienced a memory blackout, and those who reported at least 9 in the preceding 12-months. Studies were completed sober and after alcohol by all participants, and sober but after blackout by the experimental group. Accuracy of recall was assessed with linear mixed effects modelling for all experiments and conditions. Recall rate both before and after alcohol consumption was similar between groups, with poorer recall after drinking alcohol by all participants in all three studies. After blackout, MBO participants showed no significant improvement from their intoxicated state in serial recall and depth of encoding tasks, but an improvement in free recall. Further analysis of these findings revealed that 10 out of 23 participants showed significantly impaired performance after blackout during free recall, extending up to 17 participants in serial recall. In general, alcohol reduced recall rate in both blackout and control participants similarly, but recall following MBO remained poor. Our evidence suggests that alcohol-induced blackouts impair memory functioning the next day, and future research should establish the duration of deficits after an acute alcohol-induced blackout episode.
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Affiliation(s)
- Judith Jackson
- Psychology Division, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
- * E-mail: (BD); (JJ)
| | - David I. Donaldson
- Psychology Division, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
| | - Benjamin Dering
- Psychology Division, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, United Kingdom
- * E-mail: (BD); (JJ)
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72
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Kurinec CA, Whitney P, Hinson JM, Hansen DA, Van Dongen HPA. Sleep Deprivation Impairs Binding of Information with Its Context. Sleep 2021; 44:6262625. [PMID: 33940625 DOI: 10.1093/sleep/zsab113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 04/22/2021] [Indexed: 01/18/2023] Open
Abstract
Binding information to its context in long-term memory is critical for many tasks, including memory tasks and decision making. Failure to associate information to its context could be an important aspect of sleep deprivation effects on cognition, but little is known about binding problems from being sleep-deprived at the time of encoding. We studied how sleep deprivation affects binding using a well-established paradigm testing the ability to remember auditorily presented words (items) and their speakers (source context). In a laboratory study, 68 healthy young adults were randomly assigned to total sleep deprivation or a well-rested control condition. Participants completed an affective item and source memory task twice: once after 7h awake during baseline and again 24h later, after nearly 31h awake in the total sleep deprivation condition or 7h awake in the control condition. Participants listened to negative, positive, and neutral words presented by a male or female speaker and were immediately tested for recognition of the words and their respective speakers. Recognition of items declined during sleep deprivation, but even when items were recognized accurately, recognition of their associated sources also declined. Negative items were less bound with their sources than positive or neutral items,but sleep deprivation did not significantly affect this pattern.Our findings indicate that learning while sleep-deprived disrupts the binding of information to its context independent of item valence. Such binding failures may contribute to sleep deprivation effects on tasks requiring the ability to bind new information together in memory.
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Affiliation(s)
- Courtney A Kurinec
- Department of Psychology, Washington State University, Pullman, WA, United States.,Sleep and Performance Research Center, Washington State University, Spokane, WA, United States
| | - Paul Whitney
- Department of Psychology, Washington State University, Pullman, WA, United States.,Sleep and Performance Research Center, Washington State University, Spokane, WA, United States
| | - John M Hinson
- Department of Psychology, Washington State University, Pullman, WA, United States.,Sleep and Performance Research Center, Washington State University, Spokane, WA, United States
| | - Devon A Hansen
- Sleep and Performance Research Center, Washington State University, Spokane, WA, United States.,Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
| | - Hans P A Van Dongen
- Sleep and Performance Research Center, Washington State University, Spokane, WA, United States.,Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
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73
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Nie A, Ke C, Guo B, Li M, Xiao Y. Collaborative memory for categorized lists: ongoing and lasting effects are sensitive to episodic memory tasks. CURRENT PSYCHOLOGY 2021. [DOI: 10.1007/s12144-021-01684-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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74
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Symeonidou N, Kuhlmann BG. A novel paradigm to assess storage of sources in memory: the source recognition test with reinstatement. Memory 2021; 29:507-523. [PMID: 33847239 DOI: 10.1080/09658211.2021.1910310] [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: 10/21/2022]
Abstract
The present research aimed to devise a test of source recognition that facilitates access to source information stored in memory. Therefore, we extended the standard source-monitoring paradigm, in which items are presented in a source-neutral manner during test, by a second, subsequent test with source reinstatement. In this second test, items (i.e., words) were presented with both study sources (i.e., two speakers) consecutively such that for originally studied words, one test presentation was the exact reinstatement of the original source. To validate our assumption that the test with reinstatement primarily assesses source storage, we manipulated source storage by varying encoding frequency between-participants (repetition vs. no repetition of each item-source-pair). Additionally, we varied source similarity between-participants (similar vs. dissimilar speakers). Data analyses (N = 146) based on multinomial and signal detection models showed a source memory enhancement in the second test with reinstatement compared to the first standard test, especially for similar sources. Additionally, repetition selectively benefited source memory in the second test, validating our interpretation of the second test as a measure for source storage. Altogether, our novel source recognition test offers a promising method for investigating various well-known source memory phenomena more comprehensively.
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Affiliation(s)
- Nikoletta Symeonidou
- Department of Psychology, School of Social Sciences, University of Mannheim, Mannheim, Germany
| | - Beatrice G Kuhlmann
- Department of Psychology, School of Social Sciences, University of Mannheim, Mannheim, Germany
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75
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Common and distinct global functional connectivity density alterations in patients with bipolar disorder with and without auditory verbal hallucination during major depressive episodes. Brain Imaging Behav 2021; 14:2724-2730. [PMID: 31900890 DOI: 10.1007/s11682-019-00222-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Although an increasing number of studies has explored the neural mechanisms of auditory verbal hallucination (AVH) using many modalities, including neuroimaging, neurotransmitters, and electroencephalography, the etiology of AVH remains unclear. In this study, we investigated the neuroimaging characteristics of AVH in patients with bipolar disorder (BD) experiencing depressive episodes with and without AVH. For this study, we recruited 80 patients with BD and depressive status (40 with and 40 without AVH), and 40 healthy individuals. Their global functional connectivity density (gFCD) was screened by functional magnetic resonance imaging. Differences in gFCD among the three groups were tested using voxel-wise one-way analysis of covariance. Patients in both BD groups demonstrated increased gFCD in the central parietal lobe, insular lobe, and middle cingulate cortex, and decreased gFCD in the posterior parietal cortex, lateral prefrontal cortex, and occipital lobe (all bilateral). We defined these alterations as the common aberrant gFCD pattern for BD with and without AVH. Compared with the other two groups, patients in the BD with AVH group demonstrated increased gFCD in the Broca and Wernicke regions, and decreased gFCD in the hippocampus (all bilateral). We defined these alterations as the distinct aberrant gFCD pattern for BD with AVH. To our knowledge, this report is the first to date to describe gFCD alterations in patients with BD with and without AVH. Our findings suggest that disturbances in brain activity and information communication capacity in patients with BD and AVH are located mainly in the left frontoparietal network, control network, and memory circuit. However, these observations were made only in patients with BD during depressive episodes, and without consideration of many factors, such as the treatment mode, symptom relapse, and BD subtype. Hence, the conclusions of this study merely provide clues for further study, and do not fully represent brain alterations in patients with BD and AVH. Further large-sample cohort studies are needed to clarify and expand on these findings.
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76
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Fandakova Y, Johnson EG, Ghetti S. Distinct neural mechanisms underlie subjective and objective recollection and guide memory-based decision making. eLife 2021; 10:62520. [PMID: 33686938 PMCID: PMC7943194 DOI: 10.7554/elife.62520] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/18/2021] [Indexed: 01/17/2023] Open
Abstract
Accurate memories are often associated with vivid experiences of recollection. However, the neural mechanisms underlying subjective recollection and their unique role in decision making beyond accuracy have received limited attention. We dissociated subjective recollection from accuracy during a forced-choice task. Distractors corresponded either to non-studied exemplars of the targets (A-A’ condition) or to non-studied exemplars of different studied items (A-B’ condition). The A-A’ condition resulted in higher accuracy and greater activation in the superior parietal lobe, whereas the A-B’ condition resulted in higher subjective recollection and greater activation in the precuneus and retrosplenial regions, indicating a dissociation between objective and subjective memory. Activation in insular, cingulate, and lateral prefrontal regions was also associated with subjective recollection; however, during a subsequent decision phase, activation in these same regions was greater for discarded than for selected responses in anticipation of a social reward, underscoring their role in evaluating memory evidence flexibly based on current goals.
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Affiliation(s)
- Yana Fandakova
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Elliott G Johnson
- Human Development Graduate Group & Center for Mind and Brain, University of California at Davis, Davis, United States
| | - Simona Ghetti
- Department of Psychology & Center for Mind and Brain, University of California at Davis, Davis, United States
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77
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Effects of age differences in memory formation on neural mechanisms of consolidation and retrieval. Semin Cell Dev Biol 2021; 116:135-145. [PMID: 33676853 DOI: 10.1016/j.semcdb.2021.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/08/2021] [Accepted: 02/25/2021] [Indexed: 11/20/2022]
Abstract
Episodic memory decline is a hallmark of cognitive aging and a multifaceted phenomenon. We review studies that target age differences across different memory processing stages, i.e., from encoding to retrieval. The available evidence suggests that age differences during memory formation may affect the quality of memory representations in an age-graded manner with downstream consequences for later processing stages. We argue that low memory quality in combination with age-related neural decline of key regions of the episodic memory network puts older adults in a double jeopardy situation that finally results in broader memory impairments in older compared to younger adults.
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78
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El Haj M, Allain P, De Bont L, Ndobo A. Personality and social memory: High source and destination memory in extroverts. Scand J Psychol 2021; 62:436-442. [PMID: 33660873 DOI: 10.1111/sjop.12715] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/09/2020] [Accepted: 01/09/2021] [Indexed: 11/27/2022]
Abstract
We evaluated relationship between personality and memory for social interactions. More specifically, we investigated the relationship between extraversion and the ability to remember who told us some information (i.e., source memory) and the ability to remember to whom we told that information (i.e., destination memory). On a source memory task, participants received information from pictures of celebrities; a subsequent recognition test required them to identify the celebrities from whom they had received that information. On a destination memory task, participants were invited to tell information to celebrities; a later recognition task instructed them to identify the celebrity to whom they had previously told that information. Besides the assessment of source and destination memory, participants answered a questionnaire regarding extraversion. Results demonstrated significant positive correlation between extraversion and source memory, as well as significant positive correlation between extraversion and destination memory. In other words, the more participants described themselves as extraverts, the higher their source and destination memory. During social communications (e.g., in a conversation), extraverts may demonstrate high source and destination memory as these individuals typically value social communication, public sharing, and processing of social information.
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Affiliation(s)
- Mohamad El Haj
- Nantes Université, Universitaire d'Angers, Laboratoire de Psychologie des Pays de la Loire, Nantes, France.,Unité de Gériatrie, Centre Hospitalier de Tourcoing, Tourcoing, France.,Institut Universitaire de France, Paris, France
| | - Philippe Allain
- Laboratoire de Psychologie des Pays de la Loire, LPPL EA 4638, SFR Confluences, UNIV Angers, Nantes Université, Angers, France.,Département de Neurologie, CHU Angers, Angers, France
| | - Leslie De Bont
- Centre de Recherche sur les Identités, les Nations et l'Interculturalité, CRINI EA1162, Université de Nantes, Chemin la Censive du Tertre BP 81227, Nantes, France
| | - André Ndobo
- Nantes Université, Universitaire d'Angers, Laboratoire de Psychologie des Pays de la Loire, Nantes, France
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79
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Folville A, Vandeleene N, Bastin C. Shared event memory in aging: Across-participants similarity of vividness judgements decreases with age. NEUROPSYCHOLOGY, DEVELOPMENT, AND COGNITION. SECTION B, AGING, NEUROPSYCHOLOGY AND COGNITION 2021; 29:1-17. [PMID: 33618619 DOI: 10.1080/13825585.2021.1892578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 02/15/2021] [Indexed: 10/22/2022]
Abstract
When they remember the same events, humans recollect common episodic traces. For making vividness judgements, older adults rely less than young adults on retrieved episodic details. Here, we examined the similarity of the subjective experience of remembering and the associated memory content across participants and we investigated age-effects. Young and older adults studied pictures associated with labels. At retrieval, participants judged the vividness of their memories and recalled pictures details. We examined the similarity of vividness judgements and memory recall across-participants. Across-participants similarity in vividness judgements was higher in young than in older adults, while no age-difference in the similarity of the richness of memory recall between participants was found. Together, these findings suggest that older adults' vividness ratings are less similar from one participant to another than those of young adults, which may be explained by how older adults use memory details to frame their sense of memory vividness.
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Affiliation(s)
- Adrien Folville
- GIGA-CRC In Vivo Imaging, University of Liège, Liège, Belgium
- Department of Psychology, Psychology and Neuroscience of Cognition Research Unit, University of Liège, Liège, Belgium
| | - Nora Vandeleene
- GIGA-CRC In Vivo Imaging, University of Liège, Liège, Belgium
| | - Christine Bastin
- GIGA-CRC In Vivo Imaging, University of Liège, Liège, Belgium
- Department of Psychology, Psychology and Neuroscience of Cognition Research Unit, University of Liège, Liège, Belgium
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80
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Frequency-specific network effective connectivity: ERP analysis of recognition memory process by directed connectivity estimators. Med Biol Eng Comput 2021; 59:575-588. [PMID: 33559863 DOI: 10.1007/s11517-020-02304-8] [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: 02/22/2020] [Accepted: 12/24/2020] [Indexed: 10/22/2022]
Abstract
Human memory retrieval is one of the brain's most important, and least understood cognitive mechanisms. Traditionally, research on this aspect of memory has focused on the contributions of particular brain regions to recognition responses, but the interaction between regions may be of even greater importance to a full understanding. In this study, we examined patterns of network connectivity during retrieval in a recognition memory task. We estimated connectivity between brain regions from electroencephalographic signals recorded from twenty healthy subjects. A multivariate autoregressive model (MVAR) was used to determine the Granger causality to estimate the effective connectivity in the time-frequency domain. We used GPDC and dDTF methods because they have almost resolved the previous volume conduction and bivariate problems faced by previous estimation methods. Results show enhanced global connectivity in the theta and gamma bands on target trials relative to lure trials. Connectivity within and between the brain's hemispheres may be related to correct rejection. The left frontal signature appears to have a crucial role in recollection. Theta- and gamma-specific connectivity patterns between temporal, parietal, and frontal cortex may disclose the retrieval mechanism. Old/new comparison resulted in different patterns of network connection. These results and other evidence emphasize the role of frequency-specific causal network interactions in the memory retrieval process. Graphical abstract a Schematic of processing workflow which is consists of pre-processing, sliding-window AMVAR modeling, connectivity estimation, and validation and group network analysis. b Co-registration between Geodesic Sensor Net. and 10-20 system, the arrows mention eight regions of interest (Left, Anterior, Inferior (LAI) and Right, Anterior, Inferior (RAI) and Left, Anterior, Superior (LAS) and Right, Anterior, Superior (RAS) and Left, Posterior, Inferior (LPI) and Right, Posterior, Inferior (RPI) and Left, Posterior, Superior (LPS) and Right, Posterior, Superior (RPS)).
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81
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Context Memory Encoding and Retrieval Temporal Dynamics are Modulated by Attention across the Adult Lifespan. eNeuro 2021; 8:ENEURO.0387-20.2020. [PMID: 33436445 PMCID: PMC7877465 DOI: 10.1523/eneuro.0387-20.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 11/21/2022] Open
Abstract
Episodic memories are multidimensional, including simple and complex features. How we successful encode and recover these features in time, whether these temporal dynamics are preserved across age, even under conditions of reduced memory performance, and the role of attention on these temporal dynamics is unknown. In the current study, we applied time-resolved multivariate decoding to oscillatory electroencephalography (EEG) in an adult lifespan sample to investigate the temporal order of successful encoding and recognition of simple and complex perceptual context features. At encoding, participants studied pictures of black and white objects presented with both color (low-level/simple) and scene (high-level/complex) context features and subsequently made context memory decisions for both features. Attentional demands were manipulated by having participants attend to the relationship between the object and either the color or scene while ignoring the other context feature. Consistent with hierarchical visual perception models, simple visual features (color) were successfully encoded earlier than were complex features (scenes). These features were successfully recognized in the reverse temporal order. Importantly, these temporal dynamics were both dependent on whether these context features were in the focus of one's attention, and preserved across age, despite age-related context memory impairments. These novel results support the idea that episodic memories are encoded and retrieved successively, likely dependent on the input and output pathways of the medial temporal lobe (MTL), and attentional influences that bias activity within these pathways across age.
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82
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Kuhlmann BG, Symeonidou N, Tanyas H, Wulff L. Remembering and reconstructing episodic context: An overview of source monitoring methods and behavioral findings. PSYCHOLOGY OF LEARNING AND MOTIVATION 2021. [DOI: 10.1016/bs.plm.2021.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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83
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Dilevski N, Paterson HM, Walker SA, van Golde C. Adult memory for specific instances of a repeated event: a preliminary review. PSYCHIATRY, PSYCHOLOGY, AND LAW : AN INTERDISCIPLINARY JOURNAL OF THE AUSTRALIAN AND NEW ZEALAND ASSOCIATION OF PSYCHIATRY, PSYCHOLOGY AND LAW 2020; 28:711-732. [PMID: 35571600 PMCID: PMC9103626 DOI: 10.1080/13218719.2020.1837031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In cases of repeated victimisation, a complainant's statement of abuse, and therefore memory, is often critical evidence for forensic investigations and legal proceedings. It is therefore important to understand the functioning of adults' memory for repeated events. As such, the purpose of this paper was to review the extant literature on adult memory for instances of a repeated event. The results of the review revealed a small number of heterogeneous studies on adult repeated-event memory (N = 12). The literature so far shows that while adults might have difficulty in recalling information specific to instances (narrow accuracy), they are capable of remembering information across multiple instances (broad accuracy). It was also found that several factors may impact recall of instances including age, the number of experienced instances, rehearsing an event, repeated retrieval and event distinctiveness. The discussion highlights the forensic implications of this research and future research directions.
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Affiliation(s)
- Natali Dilevski
- School of Psychology, University of Sydney, Sydney, NSW, Australia
| | | | - Sarah A. Walker
- School of Psychology, University of Sydney, Sydney, NSW, Australia
| | - Celine van Golde
- School of Psychology, University of Sydney, Sydney, NSW, Australia
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84
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Fazekas P. Hallucinations as intensified forms of mind-wandering. Philos Trans R Soc Lond B Biol Sci 2020; 376:20190700. [PMID: 33308066 DOI: 10.1098/rstb.2019.0700] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
This paper argues for a novel way of thinking about hallucinations as intensified forms of mind-wandering. Starting from the observation that hallucinations are associated with hyperactive sensory areas underlying the content of hallucinatory experiences and a confusion with regard to the reality of the source of these experiences, the paper first reviews the different factors that might contribute to the impairment of reality monitoring. The paper then focuses on the sensory characteristics determining the vividness of an experience, reviews their relationship to the sensory hyperactivity observed in hallucinations, and investigates under what circumstances they can drive reality judgements. Finally, based on these considerations, the paper presents its main proposal according to which hallucinations are intensified forms of mind-wandering that are amplified along their sensory characteristics, and sketches a possible model of what factors might determine if an internally and involuntarily generated perceptual representation is experienced as a hallucination or as an instance of mind-wandering. This article is part of the theme issue 'Offline perception: voluntary and spontaneous perceptual experiences without matching external stimulation'.
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Affiliation(s)
- Peter Fazekas
- Centre for Philosophical Psychology, Universiteit Antwerpen, Antwerpen, Belgium.,Cognitive Neuroscience Research Unit, Centre of Functionally Integrative Neuroscience, Aarhus Universitet, Aarhus, Denmark
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85
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Morgan EE, Watson CWM, Woods SP, Gilbert PE, Villalobos J, Verduzco M. Misattributions of the source of health-related information in HIV disease. J Clin Exp Neuropsychol 2020; 43:1-14. [PMID: 33302782 DOI: 10.1080/13803395.2020.1851355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Introduction: Growing access to both legitimate and dubious sources of health information makes accurate source memory increasingly important, yet it may be negatively impacted by conditions that impair prefrontal functioning, including HIV. This study hypothesized that instructions supporting source encoding on a health-related memory task would disproportionately benefit source memory of people with HIV (PWH), and to examine the pattern of source memory errors that are observed.Method: 102 individuals (61 HIV+, 41 HIV-) completed comprehensive neurobehavioral (including health literacy) and neuromedical evaluations, and were randomly assigned to one of two conditions for a health-related memory task: Attend to Source Instructions explicitly participants to attend to the source of health statements presented to them, which were either health professionals or lay-persons, whereas no such instruction was provided in a Control Instructions condition.Results: There was no significant interaction of HIV status by condition or main effect of HIV (ps>.05). There was a main effect of condition whereby those who received Attend to Source Instructions performed better on item-corrected source memory than those in the Control Instructions condition (p =.04). Those who received Control Instructions were more likely to misattribute the source of the health information to a health professional when the correct source was a lay-person (Cohen's d = -0.53), which was correlated with poorer overall cognitive performance (p =.008) and performance-based measures of health literacy (ps<.05).Conclusions: Given that people are rarely reminded to attend to the source of new health information in the real world, the risk for misattributing health information to a qualified health professional in the absence of such instructions raises the concern that people may readily incorporate questionable health recommendations into their health regimen, particularly among persons with poorer cognitive functioning and lower levels of health literacy. This may have significant downstream health consequences such as drug interactions, side effects, and inefficacy.
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Affiliation(s)
- Erin E Morgan
- Department of Psychiatry, University of California, San Diego, CA, USA
| | - Caitlin Wei-Ming Watson
- Department of Psychiatry, University of California, San Diego, CA, USA.,SDSU/UCSD Joint Doctoral Program in Clinical Psychology
| | | | - Paul E Gilbert
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Javier Villalobos
- Department of Psychiatry, University of California, San Diego, CA, USA
| | - Marizela Verduzco
- Department of Psychiatry, University of California, San Diego, CA, USA
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86
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Henkel LA, Milliken A. The Benefits and Costs of Editing and Reviewing Photos of One’s Experiences on Subsequent Memory. JOURNAL OF APPLIED RESEARCH IN MEMORY AND COGNITION 2020. [DOI: 10.1016/j.jarmac.2020.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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87
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Protecting memory from misinformation: Warnings modulate cortical reinstatement during memory retrieval. Proc Natl Acad Sci U S A 2020; 117:22771-22779. [PMID: 32868423 PMCID: PMC7502729 DOI: 10.1073/pnas.2008595117] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Exposure to misleading information can distort memory for past events (misinformation effect). Here, we show that providing individuals with a simple warning about the threat of misinformation significantly reduces the misinformation effect, regardless of whether warnings are provided proactively (before exposure to misinformation) or retroactively (after exposure to misinformation). In the brain, this protective effect of warning is associated with increased reactivation of sensory regions associated with the original event and decreased reactivation of sensory regions associated with the misleading information. These findings reveal that warnings can protect memory from misinformation by modulating reconstructive processes at the time of memory retrieval and have important practical implications for improving the accuracy of eyewitness testimony as well as everyday memory reports. Exposure to even subtle forms of misleading information can significantly alter memory for past events. Memory distortion due to misinformation has been linked to faulty reconstructive processes during memory retrieval and the reactivation of brain regions involved in the initial encoding of misleading details (cortical reinstatement). The current study investigated whether warning participants about the threat of misinformation can modulate cortical reinstatement during memory retrieval and reduce misinformation errors. Participants watched a silent video depicting a crime (original event) and were given an initial test of memory for the crime details. Then, participants listened to an auditory narrative describing the crime in which some original details were altered (misinformation). Importantly, participants who received a warning about the reliability of the auditory narrative either before or after exposure to misinformation demonstrated less susceptibility to misinformation on a final test of memory compared to unwarned participants. Warned and unwarned participants also demonstrated striking differences in neural activity during the final memory test. Compared to participants who did not receive a warning, participants who received a warning (regardless of its timing) demonstrated increased activity in visual regions associated with the original source of information as well as decreased activity in auditory regions associated with the misleading source of information. Stronger visual reactivation was associated with reduced susceptibility to misinformation, whereas stronger auditory reactivation was associated with increased susceptibility to misinformation. Together, these results suggest that a simple warning can modulate reconstructive processes during memory retrieval and reduce memory errors due to misinformation.
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88
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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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89
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Different patterns of recollection for matched real-world and laboratory-based episodes in younger and older adults. Cognition 2020; 202:104309. [DOI: 10.1016/j.cognition.2020.104309] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 04/12/2020] [Accepted: 04/13/2020] [Indexed: 11/19/2022]
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90
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El Haj M, Boutoleau-Bretonnière C, Janssen SMJ. Eye movements of recent and remote autobiographical memories: fewer and longer lasting fixations during the retrieval of childhood memories. PSYCHOLOGICAL RESEARCH 2020; 85:2466-2473. [PMID: 32862309 DOI: 10.1007/s00426-020-01403-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/04/2020] [Indexed: 10/23/2022]
Abstract
There is an increased interest in the study of eye movements during the retrieval of autobiographical memories. Following this trend, the aim of the current study was to evaluate eye movements during the retrieval of remote and recent autobiographical memories. We instructed 71 participants to retrieve memories of personal events from early childhood (6-10 years), late childhood/early adolescence (11-14 years), late adolescence (15-18 years), and the last month. During the retrieval of these memories, participants wore eye-tracking glasses. Analyses showed that early childhood memories triggered fewer fixations and fixations with longer durations than memories from the last month. However, no significant differences were observed for the number of saccades, saccade durations, or total amplitude of the saccades. The fewer and longer lasting fixations during the retrieval of early childhood memories can be attributed either to the visual system reconstructing remote memories from an observer perspective or to difficulties when reconstructing remote memories.
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Affiliation(s)
- Mohamad El Haj
- Faculté de Psychologie, Laboratoire de Psychologie Des Pays de La Loire (LPPL - EA 4638), Université de Nantes, Chemin de La Censive du Tertre, Univ Angers, BP 81227, 44312, Nantes, France. .,Unité de Gériatrie, Centre Hospitalier de Tourcoing, Tourcoing, France. .,Institut Universitaire de France, Paris, France.
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91
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Statistical prediction of the future impairs episodic encoding of the present. Proc Natl Acad Sci U S A 2020; 117:22760-22770. [PMID: 32859755 DOI: 10.1073/pnas.2013291117] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Memory is typically thought of as enabling reminiscence about past experiences. However, memory also informs and guides processing of future experiences. These two functions of memory are often at odds: Remembering specific experiences from the past requires storing idiosyncratic properties that define particular moments in space and time, but by definition such properties will not be shared with similar situations in the future and thus may not be applicable to future situations. We discovered that, when faced with this conflict, the brain prioritizes prediction over encoding. Behavioral tests of recognition and source recall showed that items allowing for prediction of what will appear next based on learned regularities were less likely to be encoded into memory. Brain imaging revealed that the hippocampus was responsible for this interference between statistical learning and episodic memory. The more that the hippocampus predicted the category of an upcoming item, the worse the current item was encoded. This competition may serve an adaptive purpose, focusing encoding on experiences for which we do not yet have a predictive model.
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92
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Munévar G. A cellular and attentional network explanation of consciousness. Conscious Cogn 2020; 83:102982. [PMID: 32652510 DOI: 10.1016/j.concog.2020.102982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/25/2020] [Accepted: 06/23/2020] [Indexed: 01/02/2023]
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93
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Zhuo C, Ji F, Lin X, Tian H, Wang L, Xu Y, Wang W, Jiang D. Global functional connectivity density alterations in patients with bipolar disorder with auditory verbal hallucinations and modest short-term effects of transcranial direct current stimulation augmentation treatment-Baseline and follow-up study. Brain Behav 2020; 10:e01637. [PMID: 32304288 PMCID: PMC7303392 DOI: 10.1002/brb3.1637] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/18/2020] [Accepted: 03/26/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES To investigate the neuroimaging characteristics of auditory verbal hallucinations (AVHs) in patients with bipolar disorder (BP) experiencing depressive episodes with and without AVHs, and alterations in those characteristics after transcranial direct current stimulation (tDCS). METHODS For a baseline pilot study, we recruited 80 patients with BP and depressive status (40 with and 40 without AVHs), and 40 healthy controls (HCs). Their global functional connectivity density (gFCD) was screened by functional magnetic resonance imaging (fMRI). Voxel-wise one-way analysis of covariance (ANCOVA) was conducted to detect intergroup differences in gFCD. In a follow-up study, the effects of 5 weeks of tDCS augmentation treatment on clinical symptoms and gFCD were assessed in the 40 BP patients with AVHs. RESULTS Compared to HCs, BP patients with and without AVHs exhibited increased gFCD in the central parietal lobe, insular lobe, and middle cingulate cortex, with decreased gFCD in the posterior parietal cortex, lateral prefrontal cortex, and occipital lobe (all bilateral). Only patients with AVHs showed increased gFCD in the Broca and Wernicke regions, and decreased gFCD in the hippocampus (all bilateral). After 5 weeks of tDCS, AVHs were slightly alleviated and gFCD abnormalities in the hippocampus were mildly attenuated. CONCLUSIONS Patients with BP and AVHs showed disturbances in the brain's communication capacity mainly in the left frontoparietal network, control network, and memory circuitry. Five weeks of tDCS alleviated AVHs slightly, without improving depressive symptoms, and attenuated hippocampal gFCD alterations in these patients.
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Affiliation(s)
- Chuanjun Zhuo
- School of Mental Health, Jining Medical University, Jining, China.,Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China.,Psychiatric-Neuroimaging-Genetics-Comorbidity Laboratory, Tianjin Mental Health Centre, Tianjin Anding Hospital, Mental Health Teaching Hospital of Tianjin Medical University, Tianjin, China.,Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China.,MDT Center for Cognitive Impairment and Sleep Disorders, First Hospital of Shanxi Medical University, Taiyuan, China.,Co-collaboration Laboratory of China and Canada, Xiamen Xianyue Hospital and University of Alberta, Xiamen, China
| | - Feng Ji
- School of Mental Health, Jining Medical University, Jining, China
| | - Xiaodong Lin
- Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Hongjun Tian
- Psychiatric-Neuroimaging-Genetics-Comorbidity Laboratory, Tianjin Mental Health Centre, Tianjin Anding Hospital, Mental Health Teaching Hospital of Tianjin Medical University, Tianjin, China
| | - Lina Wang
- Psychiatric-Neuroimaging-Genetics-Comorbidity Laboratory, Tianjin Mental Health Centre, Tianjin Anding Hospital, Mental Health Teaching Hospital of Tianjin Medical University, Tianjin, China
| | - Yong Xu
- Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China.,MDT Center for Cognitive Impairment and Sleep Disorders, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Wenqiang Wang
- Co-collaboration Laboratory of China and Canada, Xiamen Xianyue Hospital and University of Alberta, Xiamen, China
| | - Deguo Jiang
- Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China
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Abstract
Misinformation causes serious harm, from sowing doubt in modern medicine to inciting violence. Older adults are especially susceptible - they shared the most fake news during the 2016 US election. The most intuitive explanation for this pattern blames cognitive deficits. While older adults forget where they learned information, fluency remains intact and decades of accumulated knowledge helps them evaluate claims. Thus, cognitive declines cannot fully explain older adults' engagement with fake news. Late adulthood also involves social changes, including general trust, difficulty detecting lies, and less emphasis on accuracy when communicating. In addition, older adults are relative newcomers to social media, who may struggle to spot sponsored content or manipulated images. In a post-truth world, interventions should consider older adults' shifting social goals and gaps in their digital literacy.
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95
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Corbett B, Duarte A. How Proactive Interference during New Associative Learning Impacts General and Specific Memory in Young and Old. J Cogn Neurosci 2020; 32:1607-1623. [PMID: 32427067 DOI: 10.1162/jocn_a_01582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Some prior research has found that older adults are more susceptible to proactive interference than young adults. The current study investigated whether age-related deficits in pFC-mediated cognitive control processes that act to detect and resolve interference underlie increased susceptibility to proactive interference in an associative memory task. Young and older adults were scanned while tasked with remembering which associate (face or scene) objects were paired with most recently during study, under conditions of high, low, or no proactive interference. After scanning, participants' memory was tested for varying levels of episodic detail about the pairings (i.e., target category vs. specific target category vs. specific target associate). Young and older adults were similarly susceptible to proactive interference. Memory for both the general target category and the specific target associate worsened as the level of proactive interference increased, with no robust age differences. For both young and older adults, the left ventrolateral pFC, which has been indicated in controlled retrieval of goal-relevant conceptual representations, was sensitive to increasing levels of interference during encoding but was insensitive to associative memory accuracy. Consistent with the Compensation-Related Utilization of Neural Circuits Hypothesis model of cognitive aging, the ventromedial pFC, which is involved in the monitoring of internally generated information, was recruited more by older than young adults to support the successful retrieval of target-object pairs at lower levels of proactive interference. Collectively, these results suggest that some older adults are able to engage in the cognitive control processes necessary to resolve proactive interference to the same extent as young adults.
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96
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Xu M, Fu Y, Yu J, Zhu P, Shen M, Chen H. Source information is inherently linked to working memory representation for auditory but not for visual stimuli. Cognition 2020; 197:104160. [DOI: 10.1016/j.cognition.2019.104160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 11/26/2022]
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97
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Liverani MC, Freitas LGA, Siffredi V, Mikneviciute G, Martuzzi R, Meskaldij D, Borradori Tolsa C, Ha‐Vinh Leuchter R, Schnider A, Van De Ville D, Hüppi PS. Get real: Orbitofrontal cortex mediates the ability to sense reality in early adolescents. Brain Behav 2020; 10:e01552. [PMID: 32073744 PMCID: PMC7177588 DOI: 10.1002/brb3.1552] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Orbitofrontal reality filtering (ORFi) is a memory mechanism that distinguishes whether a thought is relevant to present reality or not. In adults, it is mediated by the orbitofrontal cortex (OFC). This region is still not fully developed in preteenagers, but ORFi is already active from age 7. Here, we probe the neural correlates of ORFi in early adolescents, hypothesizing that OFC mediates the sense of reality in this population. METHODS Functional magnetic resonance images (fMRI) were acquired in 22 early adolescents during a task composed of two runs: run 1 measuring recognition capacity; run 2 measuring ORFi; each containing two types of images (conditions): distractors (D: images seen for the first time in the current run) and targets (T: images seen for the second time in the current run). Group region of interest (ROI) analysis was performed in a flexible factorial design with two factors (run and condition) using SPM12. RESULTS We found significant main effects for the experimental run and condition. The bilateral OFC activation was higher during ORFi than during the first run. Additionally, the OFC was more active while processing distractors than targets. CONCLUSION These results confirm, for the first time, the role of OFC in reality filtering in early adolescents.
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Affiliation(s)
- Maria Chiara Liverani
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
| | - Lorena G. A. Freitas
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
- Institute of BioengineeringÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Vanessa Siffredi
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
- Institute of BioengineeringÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Greta Mikneviciute
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
| | | | - Djalel‐Eddine Meskaldij
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
- Institute of MathematicsÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Cristina Borradori Tolsa
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
| | - Russia Ha‐Vinh Leuchter
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
| | - Armin Schnider
- Department of Clinical NeurosciencesDivision of NeurorehabilitationGeneva University HospitalsGenevaSwitzerland
| | - Dimitri Van De Ville
- Institute of BioengineeringÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Petra Susan Hüppi
- Department of Paediatrics, Gynecology and ObstetricsDivision of Development and GrowthGeneva University HospitalsGenevaSwitzerland
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98
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Horne ED, Koen JD, Hauck N, Rugg MD. Age differences in the neural correlates of the specificity of recollection: An event-related potential study. Neuropsychologia 2020; 140:107394. [PMID: 32061829 PMCID: PMC7078048 DOI: 10.1016/j.neuropsychologia.2020.107394] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [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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Affiliation(s)
- Erin D Horne
- Center for Vital Longevity and School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, 75235, USA.
| | - Joshua D Koen
- Center for Vital Longevity and School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, 75235, USA; University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Nedra Hauck
- Center for Vital Longevity and School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, 75235, USA
| | - Michael D Rugg
- Center for Vital Longevity and School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, 75235, USA
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99
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Mahr JB. The dimensions of episodic simulation. Cognition 2020; 196:104085. [DOI: 10.1016/j.cognition.2019.104085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/18/2019] [Accepted: 09/29/2019] [Indexed: 01/28/2023]
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100
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Distinguishing the Impact of Age on Semantic and Nonsemantic Associations in Episodic Memory. J Gerontol B Psychol Sci Soc Sci 2020; 76:722-731. [DOI: 10.1093/geronb/gbaa010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objectives
Refreshing, or the act of briefly foregrounding recently presented but now perceptually absent representations, has been identified as a possible source of age differences in working memory and episodic memory. We investigated whether the refreshing deficit contributes to the well-known age-related deficit for retrieving nonsemantic associations, but has no impact on existing semantic associations.
Method
Younger and older adults judged the relatedness of stimulus word pairs (e.g., pink–blue or pink–cop) after repeating or refreshing one of the words. During a later source recognition memory test, participants determined whether each item recognized as old was presented on the left or right (nonsemantic source memory) and presented in a related or unrelated pair (semantic source memory). The data were analyzed using a hierarchical Bayesian implementation of a multinomial model of multidimensional source memory.
Results
Neither age group exhibited a refreshing benefit to nonsemantic or semantic source memory parameters. There was a large age difference in nonsemantic source memory, but no age difference in semantic source memory.
Discussion
The study suggests that the nature of the association is most important to episodic memory performance in older age, irrespective of refreshing, such that source memory is unimpaired for semantically meaningful information.
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