keyword
MENU ▼
Read by QxMD icon Read
search

False memories

keyword
https://www.readbyqxmd.com/read/28077709/semantic-congruence-accelerates-the-onset-of-the-neural-signals-of-successful-memory-encoding
#1
Pau A Packard, Antoni Rodríguez-Fornells, Nico Bunzeck, Berta Nicolás, Ruth de Diego-Balaguer, Lluís Fuentemilla
: As the stream of experience unfolds, our memory system rapidly transforms current inputs into long-lasting meaningful memories. A putative neural mechanism that strongly influences how input elements are transformed into meaningful memory codes relies on the ability to integrate them with existing structures of knowledge or schemas. However, it is not yet clear whether schema-related integration neural mechanisms occur during online encoding. In the current investigation, we examined the encoding-dependent nature of this phenomenon in humans...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28072823/syntactic-recursion-facilitates-and-working-memory-predicts-recursive-theory-of-mind
#2
Burcu Arslan, Annette Hohenberger, Rineke Verbrugge
In this study, we focus on the possible roles of second-order syntactic recursion and working memory in terms of simple and complex span tasks in the development of second-order false belief reasoning. We tested 89 Turkish children in two age groups, one younger (4;6-6;5 years) and one older (6;7-8;10 years). Although second-order syntactic recursion is significantly correlated with the second-order false belief task, results of ordinal logistic regressions revealed that the main predictor of second-order false belief reasoning is complex working memory span...
2017: PloS One
https://www.readbyqxmd.com/read/28068640/transient-medial-prefrontal-perturbation-reduces-false-memory-formation
#3
Ruud M W J Berkers, Marieke van der Linden, Rafael F de Almeida, Nils C J Müller, Leonore Bovy, Martin Dresler, Richard G M Morris, Guillén Fernández
Knowledge extracted across previous experiences, or schemas, benefit encoding and retention of congruent information. However, they can also reduce specificity and augment memory for semantically related, but false information. A demonstration of the latter is given by the Deese-Roediger-McDermott (DRM) paradigm, where the studying of words that fit a common semantic schema are found to induce false memories for words that are congruent with the given schema, but were not studied. The medial prefrontal cortex (mPFC) has been ascribed the function of leveraging prior knowledge to influence encoding and retrieval, based on imaging and patient studies...
December 24, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28063401/affective-false-memories-in-dementia-of-alzheimer-s-type
#4
Beth Fairfield, Mirco Colangelo, Nicola Mammarella, Alberto Di Domenico, Cesare Cornoldi
This study examined the production of inferential false memories for complex pictorial stimuli and the implications of affective content in Alzheimer's disease (AD). A group of 24 AD patients and a group of 24 healthy older adults studied a sequence of pictures depicting stories that included positive, negative or neutral consequences of an unseen action, and then completed an old-new picture recognition test. The number of causal errors was higher in healthy older adults compared to AD patients but affective content attenuated the effect...
December 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/28063334/towards-interference-free-hplc-sers-for-the-trace-analysis-of-drug-metabolites-in-biological-fluids
#5
Waleed A Hassanain, Emad L Izake, Arumugam Sivanesan, Godwin A Ayoko
Sofosbuvir metabolite, 2'-deoxy-2'-fluoro-2'-C-methyluridine (PSI-6206) was studied for the first time by surface enhanced Raman spectroscopy (SERS) using the paper-based SERS substrate. The quantification limit of PSI-6206 by SERS was found to be 13ngL(-1) (R(2) value=0.959, RSD=5.23%). For the structural and quantitative analysis of PSI-6206 in blood plasma, an interference-free HPLC-SERS method was developed and compared to HPLC-DAD and HPLC-MS methods. The SERS quantification of the drug by the paper substrate was 4 orders of magnitude more sensitive than that by the diode array detector...
December 23, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28046076/visual-imagery-and-false-memory-for-pictures-a-functional-magnetic-resonance-imaging-study-in-healthy-participants
#6
Christian Stephan-Otto, Sara Siddi, Carl Senior, Daniel Muñoz-Samons, Susana Ochoa, Ana María Sánchez-Laforga, Gildas Brébion
BACKGROUND: Visual mental imagery might be critical in the ability to discriminate imagined from perceived pictures. Our aim was to investigate the neural bases of this specific type of reality-monitoring process in individuals with high visual imagery abilities. METHODS: A reality-monitoring task was administered to twenty-six healthy participants using functional magnetic resonance imaging. During the encoding phase, 45 words designating common items, and 45 pictures of other common items, were presented in random order...
2017: PloS One
https://www.readbyqxmd.com/read/28029065/exploring-the-consequences-of-nonbelieved-memories-in-the-drm-paradigm
#7
Henry Otgaar, Georgiana Moldoveanu, Jianqin Wang, Mark L Howe
In the current experiments, we attempted to elicit nonbelieved memories (NBMs) using the Deese/Roediger-McDermott (DRM) false memory paradigm. Furthermore, by using this approach, we explored the consequences of nonbelieved true and false memories. In Experiments 1 and 2, participants received several DRM wordlists and were presented with a recognition task. After the recognition task, participants' statements were contradicted by giving them feedback about true and false items. In this way, we succeeded in eliciting nonbelieved true and false memories...
December 28, 2016: Memory
https://www.readbyqxmd.com/read/28004374/individual-differences-in-media-multitasking-and-performance-on-the-n-back
#8
Brandon C W Ralph, Daniel Smilek
A number of studies have recently examined the link between individual differences in media multitasking (using the MMI) and performance on working memory paradigms. However, these studies have yielded mixed results. Here we examine the relation between media multitasking and one particular working memory paradigm-the n-back (2- and 3-back)-improving upon previous research by (a) treating media multitasking as a continuous variable and adopting a correlational approach as well as (b) using a large sample of participants...
December 21, 2016: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28000993/towards-modeling-false-memory-with-computational-knowledge-bases
#9
Justin Li, Emma Kohanyi
One challenge to creating realistic cognitive models of memory is the inability to account for the vast common-sense knowledge of human participants. Large computational knowledge bases such as WordNet and DBpedia may offer a solution to this problem but may pose other challenges. This paper explores some of these difficulties through a semantic network spreading activation model of the Deese-Roediger-McDermott false memory task. In three experiments, we show that these knowledge bases only capture a subset of human associations, while irrelevant information introduces noise and makes efficient modeling difficult...
December 21, 2016: Topics in Cognitive Science
https://www.readbyqxmd.com/read/27998262/neurocognitive-considerations-when-assessing-theory-of-mind-in-autism-spectrum-disorder
#10
Katie Hamilton, Michelle Hoogenhout, Susan Malcolm-Smith
Autism Spectrum Disorder (ASD) is characterised by poor social competence; and since Theory of Mind (ToM) is a building block for social-communicative skills and successful social integration, these skills are important to assess when preparing and monitoring educational and therapeutic plans. ToM is a complex skill requiring the ability to form mental concepts, to represent complex constructs verbally, to inhibit some mental states in favour of others, and to consider and compare multiple perspectives. It is critical to consider cognitive influences on the ability to develop and convey ToM skills to ensure that deficits in other cognitive domains do not falsely present as ToM deficits...
October 2016: Journal of Child and Adolescent Mental Health
https://www.readbyqxmd.com/read/27965600/false-memories-for-affective-information-in-schizophrenia
#11
Beth Fairfield, Mario Altamura, Flavia A Padalino, Angela Balzotti, Alberto Di Domenico, Nicola Mammarella
Studies have shown a direct link between memory for emotionally salient experiences and false memories. In particular, emotionally arousing material of negative and positive valence enhanced reality monitoring compared to neutral material since emotional stimuli can be encoded with more contextual details and thereby facilitate the distinction between presented and imagined stimuli. Individuals with schizophrenia appear to be impaired in both reality monitoring and memory for emotional experiences. However, the relationship between the emotionality of the to-be-remembered material and false memory occurrence has not yet been studied...
2016: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/27943406/fast-genome-wide-qtl-association-mapping-on-pedigree-and-population-data
#12
Hua Zhou, John Blangero, Thomas D Dyer, Kei-Hang K Chan, Kenneth Lange, Eric M Sobel
Since most analysis software for genome-wide association studies (GWAS) currently exploit only unrelated individuals, there is a need for efficient applications that can handle general pedigree data or mixtures of both population and pedigree data. Even datasets thought to consist of only unrelated individuals may include cryptic relationships that can lead to false positives if not discovered and controlled for. In addition, family designs possess compelling advantages. They are better equipped to detect rare variants, control for population stratification, and facilitate the study of parent-of-origin effects...
December 12, 2016: Genetic Epidemiology
https://www.readbyqxmd.com/read/27935031/interictal-epileptiform-discharges-impair-word-recall-in-multiple-brain-areas
#13
Peter C Horak, Stephen Meisenhelter, Yinchen Song, Markus E Testorf, Michael J Kahana, Weston D Viles, Krzysztof A Bujarski, Andrew C Connolly, Ashlee A Robbins, Michael R Sperling, Ashwini D Sharan, Gregory A Worrell, Laura R Miller, Robert E Gross, Kathryn A Davis, David W Roberts, Bradley Lega, Sameer A Sheth, Kareem A Zaghloul, Joel M Stein, Sandhitsu R Das, Daniel S Rizzuto, Barbara C Jobst
OBJECTIVES: Interictal epileptiform discharges (IEDs) have been linked to memory impairment, but the spatial and temporal dynamics of this relationship remain elusive. In the present study, we aim to systematically characterize the brain areas and times at which IEDs affect memory. METHODS: Eighty epilepsy patients participated in a delayed free recall task while undergoing intracranial electroencephalography (EEG) monitoring. We analyzed the locations and timing of IEDs relative to the behavioral data in order to measure their effects on memory...
December 9, 2016: Epilepsia
https://www.readbyqxmd.com/read/27934542/the-impact-of-aging-on-associative-memory-for-preexisting-unitized-associations
#14
Emma Delhaye, Christine Bastin
Aging is accompanied by a decline in associative memory that can, however, be attenuated when associations are unitized at encoding, that is, when they form an integrated entity. Unitization is thought to promote familiarity-based recognition memory, which is preserved in aging. We examined whether preexperimentally unitized associations (compound words (CWs)) do indeed reduce age differences in memory, and whether preexperimental unitization promotes familiarity. In Experiment 1, we assessed the memory of 20 young and 20 older participants for compound versus unrelated word pairs using a yes/no recognition test with Remember/Know/Guess judgments...
December 9, 2016: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/27925283/haloperidol-increases-false-recognition-memory-of-thematically-related-pictures-in-healthy-volunteers
#15
Regina V Guarnieri, Luciano G Buratto, Carlos F A Gomes, Rafaela L Ribeiro, Altay A Lino de Souza, Lilian M Stein, José C Galduróz, Orlando F A Bueno
Dopamine can modulate long-term episodic memory. Its potential role on the generation of false memories, however, is less well known. In a randomized, double-blind, placebo-controlled experiment, 24 young healthy volunteers ingested a 4-mg oral dose of haloperidol, a dopamine D2 -receptor antagonist, or placebo, before taking part in a recognition memory task. Haloperidol was active during both study and test phases of the experiment. Participants in the haloperidol group produced more false recognition responses than those in the placebo group, despite similar levels of correct recognition...
December 7, 2016: Human Psychopharmacology
https://www.readbyqxmd.com/read/27923496/neural-correlates-of-rdoc-reward-constructs-in-adolescents-with-diverse-psychiatric-symptoms-a-reward-flanker-task-pilot-study
#16
Kailyn A L Bradley, Julia A C Case, Rachel D Freed, Emily R Stern, Vilma Gabbay
BACKGROUND: There has been growing interest under the Research Domain Criteria initiative to investigate behavioral constructs and their underlying neural circuitry. Abnormalities in reward processes are salient across psychiatric conditions and may precede future psychopathology in youth. However, the neural circuitry underlying such deficits has not been well defined. Therefore, in this pilot, we studied youth with diverse psychiatric symptoms and examined the neural underpinnings of reward anticipation, attainment, and positive prediction error (PPE, unexpected reward gain)...
December 1, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27918908/likelihood-ratio-sequential-sampling-models-of-recognition-memory
#17
Adam F Osth, Simon Dennis, Andrew Heathcote
The mirror effect - a phenomenon whereby a manipulation produces opposite effects on hit and false alarm rates - is benchmark regularity of recognition memory. A likelihood ratio decision process, basing recognition on the relative likelihood that a stimulus is a target or a lure, naturally predicts the mirror effect, and so has been widely adopted in quantitative models of recognition memory. Glanzer, Hilford, and Maloney (2009) demonstrated that likelihood ratio models, assuming Gaussian memory strength, are also capable of explaining regularities observed in receiver-operating characteristics (ROCs), such as greater target than lure variance...
February 2017: Cognitive Psychology
https://www.readbyqxmd.com/read/27918169/flexible-retrieval-when-true-inferences-produce-false-memories
#18
Alexis C Carpenter, Daniel L Schacter
Episodic memory involves flexible retrieval processes that allow us to link together distinct episodes, make novel inferences across overlapping events, and recombine elements of past experiences when imagining future events. However, the same flexible retrieval and recombination processes that underpin these adaptive functions may also leave memory prone to error or distortion, such as source misattributions in which details of one event are mistakenly attributed to another related event. To determine whether the same recombination-related retrieval mechanism supports both successful inference and source memory errors, we developed a modified version of an associative inference paradigm in which participants encoded everyday scenes comprised of people, objects, and other contextual details...
December 5, 2016: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/27917021/the-impact-of-testing-on-the-formation-of-children-s-and-adults-false-memories
#19
Nathalie Brackmann, Henry Otgaar, Melanie Sauerland, Mark L Howe
Witnesses are frequently questioned immediately following a crime. The effects of such testing on false recall are inconclusive: Testing may inoculate against subsequent misinformation or enhance false memory formation. We examined whether different types of processing can account for these discrepancies. Drawing from Fuzzy-trace and Associative-activation theories, immediate questions that trigger the processing of the global understanding of the event can heighten false memory rates. However, questions that trigger the processing of specific details can inoculate memories against subsequent misinformation...
September 2016: Applied Cognitive Psychology
https://www.readbyqxmd.com/read/27915365/now-you-make-false-memories-now-you-do-not-the-order-of-presentation-of-words-in-drm-lists-influences-the-production-of-the-critical-lure-in-alzheimer-s-disease
#20
Christelle Evrard, Anne-Laure Gilet, Fabienne Colombel, Elodie Dufermont, Yves Corson
Why do some Alzheimer's patients produce fewer false memories than healthy older participants in the Deese-Roediger-McDermott paradigm, which was especially designed for the study of false memories in a laboratory setting? Using a very simple methodology, this study examines a new explanatory factor inherent in the paradigm itself: the order of presentation of the words in the lists. A sample comprising 149 participants (36 younger, 40 middle-aged, 37 healthy older adults, and 36 Alzheimer's patients) performed a DRM task with either a classic descending forward associative strength (FAS) presentation order of the words or an ascending FAS presentation order...
December 3, 2016: Psychological Research
keyword
keyword
52366
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"