Sensory, Short-Term and Working Memory
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Implicit Memory in Amnesic Patients: When Is Auditory Priming Spared?
Journal of the International Neuropsychological Society (1995), 1, 434-442. Copyright © 1995 INS. Published by Cambridge University Press. Printed in the USA. Implicit memory in amnesic patients: When is auditory priming spared? DANIEL L. SCHACTER1 AND BARBARA CHURCH2 1 Harvard University and Memory Disorders Research Center, Veterans Administration Medical Center, Cambridge, MA 02138 2 University of Illinois, Champaign, IL 61820 (RECEIVED February 16, 1995; ACCEPTED March 2, 1995) Abstract Amnesic patients often exhibit spared priming effects on implicit memory tests despite poor explicit memory. In previous research, we found normal auditory priming in amnesic patients on a task in which the magnitude of priming in control subjects was independent of whether speaker's voice was same or different at study and test, and found impaired voice-specific priming on a task in which priming in control subjects is higher when speaker's voice is the same at study and test than when it is different. The present experiments provide further evidence of spared auditory priming in amnesia, demonstrate that normal priming effects are not an artifact of low levels of baseline performance, and provide suggestive evidence that amnesic patients can exhibit voice-specific priming when experimental conditions do not require them to interactively bind together word and voice information. (JINS, 1995, 7, 434-442.) Keywords: Amnesia, Priming, Implicit memory Introduction jects heard a list of spoken words and judged either the category to which each word belongs (semantic encoding It is well known that amnesic patients can exhibit robust task) or the pitch of the speaker's voice (nonsemantic en- implicit memory despite impaired explicit memory. -
Iconic Memory and Visible Persistence
Perception & Psychophysics 1980, Vol. 27 (3),183-228 Iconic memory and visible persistence MAX COLTHEART Birkbeck College, Malet Street, London WC1E 7HX, England There are three senses in which a visual stimulus may be said to persist psychologically for some time after its physical offset. First, neural activity in the visual system evoked by the stimulus may continue after stimulus offset ("neural persistence"). Second, the stimulus may continue to be visible for some time after its offset ("visible persistence"). Finally, information about visual properties of the stimulus may continue to be available to an observer for some time after stimulus offset ("informational persistence"). These three forms of visual persistence are widely assumed to reflect a single underlying process: a decaying visual trace that (1) con sists of afteractivity in the visual system, (2) is visible, and (3) is the source of visual informa tion in experiments on decaying visual memory. It is argued here that this assumption is incor rect. Studies of visible persistence are reviewed; seven different techniques that have been used for investigating visible persistence are identified, and it is pointed out that numerous studies using a variety of techniques have demonstrated two fundamental properties of visible per sistence: the inverse duration effect (the longer a stimulus lasts, the shorter is its persistence after stimulus offset) and the inverse intensity effect (the more intense the stimulus, the briefer its persistence). Only when stimuli are so intense as to produce afterimages do these two effects fail to occur. Work on neural persistences is briefly reviewed; such persistences exist at the photoreceptor level and at various stages in the visual pathways. -
Memory Stores Iconic Memory Decays Very Quickly, and This Explains Why
In the late 60's, serial position curves (Murdock, 1962) were used as evidence to support the MSM. Primacy efects were considered evidence of rehearsal and so long-term storage whereas recency efects were considered evidence of the short-term memory store. The serial position curve was shown to occur regardless of list length and recency was removed if there was a delay between rehearsal The initial approach was the information We will see why this is and recall. Evidence for the MSM processing approach which suggests that not the case sensory processes pass through several stores: throughout the Namely, the sensory memory store, the short- lectures. However, recency efects were demonstrated over term and then the long-term memory store. long time intervals by Baddeley et al. (1977). Recency is not reflect STM but a more general accessibility to more recent experiences. Memory Stores If short-term memory is post-categorical (as suggested by Neath and Merikle) then it requires information (category membership of letters) from long-term memory = There must be communication. Short-Term Memory Multi-Store Model (Atkinson & Shifrin, 1968) VS. Working Memory Short term is a simple store, whereas working memory is a 'mental workspace. STM is a part of working memory. Working memory allows manipulation to allow reasoning, learning and comprehension. It has a limited capacity, temporary store and has a speech like or phonological code (subvocal). Sensory Memory Baddeley (1966) Phonological Similarity: asked The Sufx Efect where a sufx (e.g spoken word Free Recall Studies where participants can participants to perform serial recall of 4 types of Visual Iconic Memory (Sperling, 1960) Purely at the end of the remembered list) drastically choose to recall from any part of the list. -
Discovery Misattribution: When Solving Is Confused with Remembering
Journal of Experimental Psychology: General Copyright 2007 by the American Psychological Association 2007, Vol. 136, No. 4, 577–592 0096-3445/07/$12.00 DOI: 10.1037/0096-3445.136.4.577 Discovery Misattribution: When Solving Is Confused With Remembering Sonya Dougal Jonathan W. Schooler New York University University of British Columbia This study explored the discovery misattribution hypothesis, which posits that the experience of solving an insight problem can be confused with recognition. In Experiment 1, solutions to successfully solved anagrams were more likely to be judged as old on a recognition test than were solutions to unsolved anagrams regardless of whether they had been studied. Experiment 2 demonstrated that anagram solving can increase the proportion of “old” judgments relative to words presented outright. Experiment 3 revealed that under certain conditions, solving anagrams influences the proportion of “old” judgments to unrelated items immediately following the solved item. In Experiment 4, the effect of solving was reduced by the introduction of a delay between solving the anagrams and the recognition judgments. Finally, Experiments 5 and 6 demonstrated that anagram solving leads to an illusion of recollection. Keywords: recognition, memory misattribution, recollection, insight problem There is something very similar about the experience of recol- found that increasing the perceptual fluency of items on a recog- lection and that of discovery. In both cases, a thought comes to nition test by preceding them with subliminally -
Perceptual Thresholds and Priming in Amnesia
Neuropsychology In the public domain 1995, Vol. 9, No. 1,3-15 Perceptual Thresholds and Priming in Amnesia Stephan B. Hamann Larry R. Squire University of California, San Diego Veterans Affairs Medical Center, San Diego and University of California, San Diego Daniel L. Schacter Harvard University The widely accepted idea that perceptual priming is intact in amnesia was challenged recently by the suggestion that perceptual identification (PID) thresholds are elevated in amnesia and that this impairment could mask a priming deficit by artificially inflating priming scores. The authors examined the PID thresholds of amnesic patients across a wide range of stimulus conditions and accuracy levels. Baseline thresholds and priming effects were fully intact for all amnesic patients except in a condition using small stimuli (1.1° x 0.25° of visual angle). In that condition, only the patients with Korsakoff's syndrome were impaired. Accordingly, elevated perceptual thresholds are not a necessary consequence of amnesia, and normal priming in amnesia is not an artifact of threshold differences. The results support the conclusion that priming is independent of the brain structures important for declarative memory that are damaged in amnesia. Considerable evidence has accumulated in recent years for medial temporal lobe and diencephalic structures that are distinguishing between different kinds of memory that depend damaged in amnesia (Squire & Zola-Morgan, 1991; Zola- on multiple separate brain systems (Richardson-Klavehn & Morgan & Squire, 1993). Nondeclarative memory is indepen- Bjork, 1988; Schacter, 1987; Squire, 1982; Tulving, 1985; dent of these brain structures. Weiskrantz, 1990). The major distinction is between declara- The conclusion that nondeclarative memory is spared in tive (explicit) memory, which affords conscious recollection of amnesia is based on a considerable body of evidence compar- past facts or episodes, and nondeclarative (implicit) memory, ing normal and memory-impaired subjects. -
Sleep's Role on Episodic Memory Consolidation
SLEEP ’S ROLE ON EPISODIC MEMORY CONSOLIDATION IN ADULTS AND CHILDREN Dissertation zur Erlangung des Grades eines Doktors der Naturwissenschaften der Mathematisch-Naturwissenschaftlichen Fakultät und der Medizinischen Fakultät der Eberhard-Karls-Universität Tübingen vorgelegt von Jing-Yi Wang aus Shijiazhuang, Hebei, Volksrepublik China Dezember, 2016 Tag der mündlichen Prüfung: February 22 , 2017 Dekan der Math.-Nat. Fakultät: Prof. Dr. W. Rosenstiel Dekan der Medizinischen Fakultät: Prof. Dr. I. B. Autenrieth 1. Berichterstatter: Prof. Dr. Jan Born 2. Berichterstatter: Prof. Dr. Steffen Gais Prüfungskommission: Prof. Manfred Hallschmid Prof. Dr. Steffen Gais Prof. Christoph Braun Prof. Caterina Gawrilow I Declaration: I hereby declare that I have produced the work entitled “Sleep’s Role on Episodic Memory Consolidation in Adults and Children”, submitted for the award of a doctorate, on my own (without external help), have used only the sources and aids indicated and have marked passages included from other works, whether verbatim or in content, as such. I swear upon oath that these statements are true and that I have not concealed anything. I am aware that making a false declaration under oath is punishable by a term of imprisonment of up to three years or by a fine. Tübingen, the December 5, 2016 ........................................................ Date Signature III To my beloved parents – Hui Jiao and Xuewei Wang, Grandfather – Jin Wang, and Frederik D. Weber 致我的父母:焦惠和王学伟 爷爷王金,以及 爱人王敬德 V Content Abbreviations ................................................................................................................................................... -
Neuropsychologia Repetition Priming in Amnesia
1HXURSV\FKRORJLD[[[ [[[[ [[[²[[[ Contents lists available at ScienceDirect Neuropsychologia journal homepage: www.elsevier.com/locate/neuropsychologia Repetition priming in amnesia: Distinguishing associative learning at different levels of abstraction Elizabeth Racea,b,⁎, Keely Burkeb, Mieke Verfaellieb a Department of Psychology, Tufts University, Medford, MA 02150, United States b Memory Disorders Research Center, VA Boston Healthcare System and Boston University School of Medicine, Boston, MA 02130, United States ARTICLE INFO ABSTRACT Keywords: Learned associations between stimuli and responses make important contributions to priming. The current study Repetition priming aimed to determine whether medial temporal lobe (MTL) binding mechanisms mediate this learning. Prior Hippocampus studies implicating the MTL in stimulus-response (S-R) learning have not isolated associative learning at the Memory response level from associative learning at other levels of representation (e.g., task sets or decisions). The current S-R binding study investigated whether the MTL is specifically involved in associative learning at the response level by testing a group of amnesic patients with MTL damage on a priming paradigm that isolates associative learning at the response level. Patients demonstrated intact priming when associative learning was isolated to the stimulus- response level. In contrast, their priming was reduced when associations between stimuli and more abstract representations (e.g., stimulus-task or stimulus-decision associations) could contribute to performance. These results provide novel neuropsychological evidence that S-R contributions to priming can be supported by regions outside the MTL, and suggest that the MTL may play a critical role in linking stimuli to more abstract tasks or decisions during priming. 1. Introduction et al., 2014) or “event files” (Hommel, 1998). -
Priming and the Brain Review
Neuron, Vol. 20, 185±195, February, 1998, Copyright 1998 by Cell Press Priming and the Brain Review Daniel L. Schacter*§ and Randy L. Buckner²³ minutes to several hours, subjects are given three-letter *Department of Psychology word stems with multiple possible completions and are Harvard University asked to complete each stem with the first word that Cambridge, Massachusetts 02138 comes to mind (e.g., mot___ for the target word ªmotelº). ² Department of Psychology Priming occurs when subjects complete the stem with Washington University a designated target completion more often for words St. Louis, Missouri 63130 that had been studied earlier than for words that were ³ MGH-NMR Center not studied previously. In a related kind of experiment, Charlestown, Massachusetts 02129 subjects study a list of words and are later given a word identification test, where words are flashed briefly (e.g., Introduction for 35 ms) and subjects attempt to identify them. Priming occurs when subjects identify more previously studied Research in cognitive psychology, neuropsychology, words than nonstudied words. Similar kinds of tasks and neuroscience has converged recently on the idea have been developed for examining priming of numer- that memory is composed of dissociable forms and sys- ous different types of stimuli, including pseudowords tems (Squire, 1992; Roediger and McDermott, 1993; (Keane et al., 1995; Bowers, 1996), familiar and unfa- Schacter and Tulving, 1994; Willingham, 1997). This con- miliar objects (Biederman and Cooper, 1991; Srinivas, clusion has been based on experimental and theoretical 1993; Schacter et al., 1993b), visual patterns (Musen analyses of a variety of different phenomena of learning and Squire, 1992), and environmental sounds (Chiu and and memory. -
Learning Styles and Memory
Learning Styles and Memory Sandra E. Davis Auburn University Abstract The purpose of this article is to examine the relationship between learning styles and memory. Two learning styles were addressed in order to increase the understanding of learning styles and how they are applied to the individual. Specifically, memory phases and layers of memory will also be discussed. In conclusion, an increased understanding of the relationship between learning styles and memory seems to help the learner gain a better understanding of how to the maximize benefits for the preferred leaning style and how to retain the information in long-term memory. Introduction Learning styles, as identified in the Perpetual Learning Styles Theory and memory, as identified in the Memletics Accelerated Learning, will be overviewed. Factors involving information being retained into memory will then be discussed. This article will explain how the relationship between learning styles and memory can help the learner maximize his or her learning potential. Learning Styles The Perceptual Learning Styles Theory lists seven different styles. They are print, aural, interactive, visual, haptic, kinesthetic, and olfactory (Institute for Learning Styles Research, 2003). This theory says that most of what we learn comes from our five senses. The Perceptual Learning Style Theory defines the seven learning styles as follows: The print learning style individual prefers to see the written word (Institute for Learning Styles Research, 2003). They like taking notes, reading books, and seeing the written word, either on a chalk board or thru a media presentation such as Microsoft Powerpoint. The aural learner refers to listening (Institute for Learning Styles Research, 2003). -
High 1 Effectiveness of Echoic and Iconic Memory in Short-Term and Long-Term Recall Courtney N. High 01/14/13 Mr. Mengel Psychol
High 1 Effectiveness of Echoic and Iconic Memory in Short-term and Long-term Recall Courtney N. High 01/14/13 Mr. Mengel Psychology 1 High 2 Abstract Objective: To see whether iconic memory or echoic memory is more effective at being stored and recalled as short-term and long-term memory in healthy adults. Method: Eight healthy adults between the ages of 18 and 45 were tested in the study. Participants were shown a video containing ten pictures and ten sounds of easily recognizable objects. Participants were asked to recall as many items as they could immediately after the video and were then asked again after a series of questions. Results: In younger adults more visual objects are able to be recalled both short and long term, but with older adults, in short term recall, the same number of sound and visual items where remembered, and with long term recall, sound items were remembered slightly better. Results also showed that iconic memory fades faster than echoic memory. Conclusion: The ability to store and recall iconic and echoic information both short and long term varies with age. The study has several faults including relying on self-reporting on health for participants, and testing environments not being quiet in all tests. Introduction There are three main different types of memory: Sensory memory, short-term memory, and long-term memory. Sensory memory deals with the brief storage of information immediately after stimulation. Sensory memory is then converted to short-term memory if deemed necessary by the brain where it is held. After that, some information will then be stored as long-term memory for later recall. -
2.33 Implicit Memory and Priming W
2.33 Implicit Memory and Priming W. D. Stevens, G. S. Wig, and D. L. Schacter, Harvard University, Cambridge, MA, USA ª 2008 Elsevier Ltd. All rights reserved. 2.33.1 Introduction 623 2.33.2 Influences of Explicit Versus Implicit Memory 624 2.33.3 Top-Down Attentional Effects on Priming 626 2.33.3.1 Priming: Automatic/Independent of Attention? 626 2.33.3.2 Priming: Modulated by Attention 627 2.33.3.3 Neural Mechanisms of Top-Down Attentional Modulation 629 2.33.4 Specificity of Priming 630 2.33.4.1 Stimulus Specificity 630 2.33.4.2 Associative Specificity 632 2.33.4.3 Response Specificity 632 2.33.5 Priming-Related Increases in Neural Activation 634 2.33.5.1 Negative Priming 634 2.33.5.2 Familiar Versus Unfamiliar Stimuli 635 2.33.5.3 Sensitivity Versus Bias 636 2.33.6 Correlations between Behavioral and Neural Priming 637 2.33.7 Summary and Conclusions 640 References 641 2.33.1 Introduction stimulus that result from a previous encounter with the same or a related stimulus. Priming refers to an improvement or change in the When considering the link between behavioral identification, production, or classification of a stim- and neural priming, it is important to acknowledge ulus as a result of a prior encounter with the same or that functional neuroimaging relies on a number of a related stimulus (Tulving and Schacter, 1990). underlying assumptions. First, changes in informa- Cognitive and neuropsychological evidence indi- tion processing result in changes in neural activity cates that priming reflects the operation of implicit within brain regions subserving these processing or nonconscious processes that can be dissociated operations. -
Measuring and Modeling the Trajectory of Visual Spatial Attention
Psychological Review Copyright 2002 by the American Psychological Association, Inc. 2002, Vol. 109, No. 2, 260–305 0033-295X/02/$5.00 DOI: 10.1037//0033-295X.109.2.260 Measuring and Modeling the Trajectory of Visual Spatial Attention Shui-I Shih George Sperling University of Southampton University of California, Irvine In a novel choice attention-gating paradigm, observers monitor a stream of 3 ϫ 3 letter arrays until a tonal cue directs them to report 1 row. Analyses of the particular arrays from which reported letters are chosen and of the joint probabilities of reporting pairs of letters are used to derive a theory of attention dynamics. An attention window opens 0.15 s following a cue to attend to a location, remains open (minimally) 0.2 s, and admits information simultaneously from all the newly attended locations. The window dynamics are independent of the distance moved. The theory accounts for about 90% of the variance from the over 400 data points obtained from each of the observers in the 3 experiments reported here. With minor elaborations, it applies to all the principal paradigms used to study the dynamics of visual spatial attention. We explored a method of measuring the trajectory of spatial strong test of the possibility of equivalent attention trajectories in attention that is analogous to measuring the trajectory of subatomic different experimental paradigms requires that all paradigms be particles in a Glaser bubble chamber (Gray & Isaacs, 1975). In the tested with the same observers and with similar stimulus materials. bubble chamber, a three-dimensional space is filled with a super- Therefore, in addition to the main experiment, which measured heated liquid.