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2013

Memory

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Articles 1 - 28 of 28

Full-Text Articles in Psychology

Context And Target Search Reversal: Implicit Flexibility And Rapid Adaptation Of Relational Memories Using Visual Search, Ryan Hanson Dec 2013

Context And Target Search Reversal: Implicit Flexibility And Rapid Adaptation Of Relational Memories Using Visual Search, Ryan Hanson

Theses and Dissertations

Repeated perceptual exposure leads to increased accuracy and decreased response latency - referred to as perceptual facilitation or priming - and generally occurs in the absence of conscious memory experience. One example of a priming task which depends upon contextual relations is termed contextual cuing. It has long been held that context-dependent relations can only be acquired with deliberative or explicit processes. While context learning has historically been attributed to declarative memory, the existence of implicit context learning tasks may be better explained as an implicit relational learning process. Although implicit memories have long been characterized as relatively rigid, such …

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Bdnf In The Dentate Gyrus Is Required For Consolidation Of "Pattern-Separated" Memories., Pedro Bekinschtein, Brianne A Kent, Charlotte A Oomen, Gregory D Clemenson, Fred H Gage, Lisa M Saksida, Timothy J Bussey Nov 2013

Bdnf In The Dentate Gyrus Is Required For Consolidation Of "Pattern-Separated" Memories., Pedro Bekinschtein, Brianne A Kent, Charlotte A Oomen, Gregory D Clemenson, Fred H Gage, Lisa M Saksida, Timothy J Bussey

Brain and Mind Institute Researchers' Publications

Successful memory involves not only remembering information over time, but also keeping memories distinct and less confusable. The computational process for making representations for similar input patterns more distinct from each other has been referred to as "pattern separation." In this work, we developed a set of behavioral conditions that allowed us to manipulate the load for pattern separation at different stages of memory. Thus, we provide experimental evidence that a brain-derived neurotrophic factor (BDNF)-dependent pattern separation process occurs during the encoding/storage/consolidation, but not the retrieval stage of memory processing. We also found that a spontaneous increase in BDNF in …

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The Touchscreen Operant Platform For Testing Working Memory And Pattern Separation In Rats And Mice., Charlotte A Oomen, Martha Hvoslef-Eide, Christopher J Heath, Adam C Mar, Alexa E Horner, Timothy J Bussey, Lisa M Saksida Oct 2013

The Touchscreen Operant Platform For Testing Working Memory And Pattern Separation In Rats And Mice., Charlotte A Oomen, Martha Hvoslef-Eide, Christopher J Heath, Adam C Mar, Alexa E Horner, Timothy J Bussey, Lisa M Saksida

Brain and Mind Institute Researchers' Publications

The automated touchscreen operant chamber for rats and mice allows for the assessment of multiple cognitive domains within the same testing environment. This protocol presents the location discrimination (LD) task and the trial-unique delayed nonmatching-to-location (TUNL) task, which both assess memory for location. During these tasks, animals are trained to a predefined criterion during ∼20-40 daily sessions. In LD sessions, touching the same location on the screen is rewarded on consecutive trials, followed by a reversal of location-reward contingencies. TUNL, a working memory task, requires animals to 'nonmatch' to a sample location after a delay. In both the LD and …

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The Touchscreen Operant Platform For Testing Learning And Memory In Rats And Mice., Alexa E Horner, Christopher J Heath, Martha Hvoslef-Eide, Brianne A Kent, Chi Hun Kim, Simon R O Nilsson, Johan Alsiö, Charlotte A Oomen, Andrew Holmes, Lisa M Saksida, Timothy J Bussey Oct 2013

The Touchscreen Operant Platform For Testing Learning And Memory In Rats And Mice., Alexa E Horner, Christopher J Heath, Martha Hvoslef-Eide, Brianne A Kent, Chi Hun Kim, Simon R O Nilsson, Johan Alsiö, Charlotte A Oomen, Andrew Holmes, Lisa M Saksida, Timothy J Bussey

Brain and Mind Institute Researchers' Publications

An increasingly popular method of assessing cognitive functions in rodents is the automated touchscreen platform, on which a number of different cognitive tests can be run in a manner very similar to touchscreen methods currently used to test human subjects. This methodology is low stress (using appetitive rather than aversive reinforcement), has high translational potential and lends itself to a high degree of standardization and throughput. Applications include the study of cognition in rodent models of psychiatric and neurodegenerative diseases (e.g., Alzheimer's disease, schizophrenia, Huntington's disease, frontotemporal dementia), as well as the characterization of the role of select brain regions, …

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Sources Of Interference In Recognition Testing, Jeffrey Annis, Kenneth J. Malmberg, Amy Criss, Richard M. Shiffrin Sep 2013

Sources Of Interference In Recognition Testing, Jeffrey Annis, Kenneth J. Malmberg, Amy Criss, Richard M. Shiffrin

Psychology Faculty Publications

Recognition memory accuracy is harmed by prior testing (a.k.a., output interference [OI]; Tulving & Arbuckle, 1966). In several experiments, we interpolated various tasks between recognition test trials. The stimuli and the tasks were more similar (lexical decision [LD] of words and nonwords) or less similar (gender identification of male and female faces) to the stimuli and task used in recognition testing. Not only did the similarity between the interpolated and recognition tasks not affect recognition accuracy but performance of the interpolated task caused no interference in subsequent recognition testing. Only the addition of recognition trials caused OI. When we presented …

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The Enhancing Effect Of Retrieval On Subsequent Encoding: Understanding Test-Potentiated Learning, Kathleen Marie Arnold Aug 2013

The Enhancing Effect Of Retrieval On Subsequent Encoding: Understanding Test-Potentiated Learning, Kathleen Marie Arnold

Arts & Sciences Electronic Theses and Dissertations

Retrieval practice directly enhances later memory of tested material, a robust effect known as the testing effect (Roediger & Karpicke, 2006b). Numerous experiments have provided support for this effect. However, another important effect of retrieval practice has received far less attention. Retrieval practice can also indirectly enhance learning by potentiating subsequent encoding of tested material, an effect known as test-potentiated learning (Izawa, 1966). Although introduced over four decades ago, little is known about how and when tests enhance subsequent encoding, information that has both practical and theoretical importance. The aim of this dissertation was to enhance understanding of test-potentiated learning …

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The Role Of A Camkii/Pka-Protein Degradation-Glur2 Pathway In The Control Of Memory Updating Following Retrieval, Timothy Jarome Aug 2013

The Role Of A Camkii/Pka-Protein Degradation-Glur2 Pathway In The Control Of Memory Updating Following Retrieval, Timothy Jarome

Theses and Dissertations

Reconsolidation is thought to be a process whereby consolidated memories can be modified following retrieval. However, very little is known about the molecular mechanisms that regulate this reconsolidation process. In the present series of experiments we tested if memories "destabilize" or become labile following retrieval through a specific signaling pathway. We found that retrieval of a contextual fear memory differentially increased proteasome activity in the amygdala and hippocampus and resulted in unique changes in AMPA receptor subunit expression in these brain regions. These changes were dependent on CaMKII activity, which was required for increases in Rpt6-S120 phosphorylation, proteasome activity and …

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Musical Mood And Musical Arousal Affects Different Stages Of Learning And Memory Performance, Tram Nguyen Jul 2013

Musical Mood And Musical Arousal Affects Different Stages Of Learning And Memory Performance, Tram Nguyen

Electronic Thesis and Dissertation Repository

This thesis examined whether the effect of music on memory is attributable to musical mood, musical arousal, context, or some combination of these factors. In Experiment 1, participants performed a face-name paired-association task while music was played in the background. In Experiment 2, the perceptual context (Experiment 2A) and emotional context (Experiment 2B) of music was examined more thoroughly. Experiment 3 examined whether the context effect of musical mood and musical arousal occurs in a recall task (Experiment 3A), a recognition task (Experiment 3B), and an association task (Experiment 3C). The results showed that low arousal music enhanced memory while …

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Goal Commitments And The Content Of Thoughts And Dreams: Basic Principles, Eric Klinger Jul 2013

Goal Commitments And The Content Of Thoughts And Dreams: Basic Principles, Eric Klinger

Psychology Publications

A few empirically supported principles can account for much of the thematic content of waking thought, including rumination, and dreams. (1) An individual’s commitments to particular goals sensitize the individual to respond to cues associated with those goals. The cues may be external or internal in the person’s own mental activity. The responses may take the form of noticing the cues, storing them in memory, having thoughts or dream segments related to them, and/or taking action. Noticing may be conscious or not. Goals may be any desired endpoint of a behavioral sequence, including finding out more about something, i.e., exploring …

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Targeted Training Of The Decision Rule Benefits Rule-Guided Behavior In Parkinson’S Disease, Shawn W. Ell Jun 2013

Targeted Training Of The Decision Rule Benefits Rule-Guided Behavior In Parkinson’S Disease, Shawn W. Ell

Psychology Faculty Scholarship

The impact of Parkinson’s disease (PD) on rule-guided behavior has received considerable attention in cognitive neuroscience. The majority of research has used PD as a model of dysfunction in fronto-striatal networks, but very few attempts have been made to investigate the possibility of adapting common experimental techniques in an effort to identify the conditions that are most likely to facilitate successful performance. The present study investigated a targeted training paradigm designed to facilitate rule learning and application using rule-based categorization as a model task. Participants received targeted training in which there was no selective-attention demand (i.e., stimuli varied along a …

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To Live Is To Die: The Effect Of Mortality Salience On Memory And Fear Of Death, Tony F. Bergamini May 2013

To Live Is To Die: The Effect Of Mortality Salience On Memory And Fear Of Death, Tony F. Bergamini

Undergraduate Honors Thesis Collection

Terror Management Theory proposes that the threat of death produces existential terror, which accentuates the need for security. This effect of mortality salience awareness of death-is well documented for non-conscious thoughts of death (Martens, Burke, Schimel, & Faucher, 2011). The objective of this study, then, is to measure anxiety-or fear of death-in reaction to non-conscious as well as conscious thoughts of death by manipulating the valence (positive vs. negative) and content (death vs. non-death) of a story that participants read. I measured any changes reported in fear of death before and after reading the story. Participants also wrote about their …

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Does The Difference Between Handwriting And Typing Influence Memory Ability?, Ai Shinohara May 2013

Does The Difference Between Handwriting And Typing Influence Memory Ability?, Ai Shinohara

Undergraduate Psychology Research Methods Journal

Technology has had a great impact on education today. Computer skills are necessary in order to complete many school assignments, and typing on the computer has become a main writing method for younger generations (Burnhart & Goldinger, 2010). Many college students bring their computers in the classroom, and more and more students have started to take notes by typing on their computer instead of handwriting their notes. The question to this convenient society is whether the new writing method, typing, affects students’ memory abilities in a classroom situation. The current study was conducted to determine if handwriting or typing was …

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Olfactory Working Memory: The Role Of Perceived Odor Name-Ability, Spencer Lawrence Macadams May 2013

Olfactory Working Memory: The Role Of Perceived Odor Name-Ability, Spencer Lawrence Macadams

Masters Theses and Doctoral Dissertations

The purpose of this study was to examine the relationship among three factors: perceived odorant name ability, whether the odorant was ingested through a single nostril or both nostrils, and how the odorant is represented in working memory. Participants smelled odorants through the left or right nostril or with both nostrils and then provided an identifying label for each odor and rated how accurately their label represented the odor. After a short delay, the participants were given a new stimulus set consisting of new and old odorants. Participants were asked to provide a label for the odor and determine whether …

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Attention And Criminal Charge, Profile And Description: The Effect On Prospective Person Memory, Lindsey Nicole Sweeney May 2013

Attention And Criminal Charge, Profile And Description: The Effect On Prospective Person Memory, Lindsey Nicole Sweeney

Graduate Theses and Dissertations

Prospective person memory is the ability to recognize and react to a missing or wanted individual that one has been asked to be on the lookout for in the future. Prospective person memory relies on several processes including face recognition, event-based prospective memory, and attention. Only recently has research on the role of visual attention on prospective person memory been examined. In this dissertation, the gap between prospective person memory and attention is addressed. Although research on prospective person memory is steadily increasing, the research in this area is still in its infancy and the exact memory mechanisms that affect …

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Shared Neural Substrates Of Emotionally Enhanced Perceptual And Mnemonic Vividness, Rebecca M. Todd, Taylor W. Schmitz, Josh Susskind, Adam K. Anderson Apr 2013

Shared Neural Substrates Of Emotionally Enhanced Perceptual And Mnemonic Vividness, Rebecca M. Todd, Taylor W. Schmitz, Josh Susskind, Adam K. Anderson

Brain and Mind Institute Researchers' Publications

It is well known that emotionally salient events are remembered more vividly than mundane ones. Our recent research has demonstrated that such memory vividness is due in part to the subjective experience of emotional events as more perceptually vivid, an effect we call emotion-enhanced vividness, or EEV. The present study built on previously reported research in which fMRI data were collected while participants rated relative levels of visual noise overlaid on emotionally salient and neutral images. Ratings of greater EEV were associated with greater activation in the amygdala, visual cortex, and posterior insula. In the present study, we measured BOLD …

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The Rhetorical Canon Of Memory And The Assistive Use Of Mnemonics, Jonathan Bobby Apr 2013

The Rhetorical Canon Of Memory And The Assistive Use Of Mnemonics, Jonathan Bobby

Masters Theses

People often imagine at some point in their existence what it would be like to have a photographic memory. However, this mental aptitude is a misnomer, and extremely rare in humankind. What we possess from our Creator is a photographic mind. Our memory recall is based on the recognition of visual pictures that appear in our mind. The early communication theorists illustrated this recognition and described it in the fourth canon of rhetoric. Because of the advancements in information technology, memory no longer holds the significance it once did. Numerous academic texts refer to memory as the lost art of …

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Self-Defining Memories, Scripts, And The Life Story: Narrative Identity In Personality And Psychotherapy, Jefferson A. Singer, Pavel Blagov, Meredith Berry, Kathryn M. Oost Jan 2013

Self-Defining Memories, Scripts, And The Life Story: Narrative Identity In Personality And Psychotherapy, Jefferson A. Singer, Pavel Blagov, Meredith Berry, Kathryn M. Oost

Psychology Faculty Publications

An integrative model of narrative identity builds on a dual memory system that draws on episodic memory and a long-term self to generate autobiographical memories. Autobiographical memories related to critical goals in a lifetime period lead to life-story memories, which in turn become self-defining memories when linked to an individual's enduring concerns. Self-defining memories that share repetitive emotion-outcome sequences yield narrative scripts, abstracted templates that filter cognitive-affective processing. The life story is the individual's overarching narrative that provides unity and purpose over the life course. Healthy narrative identity combines memory specificity with adaptive meaning-making to achieve insight and well-being, as …

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Memory And Production Of Standard Frequencies In College-Level Musicians, Sarah E. Weber Jan 2013

Memory And Production Of Standard Frequencies In College-Level Musicians, Sarah E. Weber

Masters Theses 1911 - February 2014

This thesis examines the nature of long-term absolute pitch memory—an ability traditionally assumed to belong only to absolute pitch (AP) possessors—by testing for evidence of this memory for “standard” frequencies in musicians without AP. Standard frequencies, those based on the equally tempered system with A = 440 Hz, are common in the sonic environment of the Western college musical education, and thus could have the opportunity to penetrate listeners’ long-term memories. Through four experimental tasks, this thesis examines musicians’ ability to recognize and produce frequencies from the set of equally tempered frequencies based on A = 440 Hz, without regard …

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Changing Room Cues Reduces The Effects Of Proactive Interference In Clark’S Nutcrackers, Nucifraga Columbiana, Jody L. Lewis, Alan C. Kamil, Kate E. Webbink Jan 2013

Changing Room Cues Reduces The Effects Of Proactive Interference In Clark’S Nutcrackers, Nucifraga Columbiana, Jody L. Lewis, Alan C. Kamil, Kate E. Webbink

Avian Cognition Papers

To determine what factors are important for minimizing interference effects in spatial memory, Clark’s Nutcrackers, Nucifraga columbiana were tested for their spatial memory for two serial lists of locations per day. In this experiment two unique landmark sets were either different between List 1 and List 2 or the same. We found that Nutcrackers were most susceptible to interference when the landmark sets were the same. This study suggests that repeatedly testing animal memory in the same room, with the same cues, can hamper recall due to interference.

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Differential Effects Of Parkinson's Disease And Dopamine Replacement On Memory Encoding And Retrieval., Alex A Macdonald, Ken N Seergobin, Adrian M Owen, Ruzbeh Tamjeedi, Oury Monchi, Hooman Ganjavi, Penny A Macdonald Jan 2013

Differential Effects Of Parkinson's Disease And Dopamine Replacement On Memory Encoding And Retrieval., Alex A Macdonald, Ken N Seergobin, Adrian M Owen, Ruzbeh Tamjeedi, Oury Monchi, Hooman Ganjavi, Penny A Macdonald

Brain and Mind Institute Researchers' Publications

Increasingly memory deficits are recognized in Parkinson's disease (PD). In PD, the dopamine-producing cells of the substantia nigra (SN) are significantly degenerated whereas those in the ventral tegmental area (VTA) are relatively spared. Dopamine-replacement medication improves cognitive processes that implicate the SN-innervated dorsal striatum but is thought to impair those that depend upon the VTA-supplied ventral striatum, limbic and prefrontal cortices. Our aim was to examine memory encoding and retrieval in PD and how they are affected by dopamine replacement. Twenty-nine PD patients performed the Rey Auditory Verbal Learning Test (RAVLT) and a non-verbal analogue, the Aggie Figures Learning Test …

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Assessment Of Verbal And Nonverbal Memory And Learning In Abstinent Alcoholics, Alyson L. Phelan Jan 2013

Assessment Of Verbal And Nonverbal Memory And Learning In Abstinent Alcoholics, Alyson L. Phelan

ETD Archive

Neuropsychological performance was measured in chronic alcoholics who maintained abstinence for at least six months and with matched controls. Specifically, measures of verbal memory were assessed utilizing the Rey Auditory Verbal Learning Test (RAVLT) and measures of nonverbal memory with the Rey Osterreith Complex Figure Test (ROCF) and a new measure, the Poreh Nonverbal Memory Test (PNMT). In addition, both the RAVLT and the PNMT provide a measure of operationalized learning, as they are multi-trial tasks utilizing five trials to assess recall in each trial. Verbal memory includes the ability to encode, store and retrieve information for words, language and …

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Semantic Memory Functional Mri And Cognitive Function After Exercise Intervention In Mild Cognitive Impairment, J Carson Smith, Kristy A. Nielson, Piero Antuono, Jeri-Annette Lyons, Ryan J. Hanson, Alissa Butts, Nathan Hantke, Matthew D. Verber Jan 2013

Semantic Memory Functional Mri And Cognitive Function After Exercise Intervention In Mild Cognitive Impairment, J Carson Smith, Kristy A. Nielson, Piero Antuono, Jeri-Annette Lyons, Ryan J. Hanson, Alissa Butts, Nathan Hantke, Matthew D. Verber

Psychology Faculty Research and Publications

Mild cognitive impairment (MCI) is associated with early memory loss, Alzheimer's disease (AD) neuropathology, inefficient or ineffective neural processing, and increased risk for AD. Unfortunately, treatments aimed at improving clinical symptoms or markers of brain function generally have been of limited value. Physical exercise is often recommended for people diagnosed with MCI, primarily because of its widely reported cognitive benefits in healthy older adults. However, it is unknown if exercise actually benefits brain function during memory retrieval in MCI. Here, we examined the effects of exercise training on semantic memory activation during functional magnetic resonance imaging (fMRI). Seventeen MCI participants …

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Googling To Forget: The Cognitive Processing Of Internet Search, Elizabeth T. Friede Jan 2013

Googling To Forget: The Cognitive Processing Of Internet Search, Elizabeth T. Friede

CMC Senior Theses

Technology is currently extremely integrated with everyday life. Popular media has made bold claims that the internet is making us “dumber” and people struggle to remember information more now than they ever have in the past. Scientific research on the effect of internet search on cognition and memory is still in its infancy. This research will analyze the literature and theories discussing memory and the internet. Based on an original experiment by Sparrow, Liu, and Wegner. 20 participants (10 young adults and 10 older adults) performed a typing task with twenty trivia statements, followed by a recall and recognition memory …

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Behavioral Markers Of Chronic Low-Level Lead Exposure In Young Mice, Mayra Gisel Flores Montoya Jan 2013

Behavioral Markers Of Chronic Low-Level Lead Exposure In Young Mice, Mayra Gisel Flores Montoya

Open Access Theses & Dissertations

Behavioral markers of chronic low-level lead exposure in young mice were examined in the present study. Three groups of C57BL/6J mice (N = 35) were exposed from birth to PND 28 to one of three lead acetate levels: 0 ppm (control), 30 ppm (low-dose), or 330 ppm (high-dose). On PND 28, and immediately prior to sacrifice, mice were tested on the novel odor recognition task [(NODR) (memory task)], on the open field task [(OF) (exploratory behavior, habituation, and anxiety behavior task)], and on the nose poke task [(NP) (exploratory behavior task)]. Blood lead levels were analyzed with inductively coupled plasma …

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Eyewitness Memory In Adults, Carlos Manuel Vargas Jan 2013

Eyewitness Memory In Adults, Carlos Manuel Vargas

Open Access Theses & Dissertations

This study encompasses the areas of eyewitness misidentifications and eyewitness suggestibility by developing a Video Suggestibility and Eyewitness Identification Scale for adults. Two hundred one college students were recruited to test this novel psychometric scale following procedures loosely based on the Gudjonsson Suggestibility Scales. The two main subscales proposed are labeled True, which measures non-leading questions answered correctly, and Yield, which measures questions endorsed based on misinformation; two lineup identification subscales were also analyzed for exploration. Reliability estimates showed acceptable internal consistency of True and Yield subscales after negative feedback was provided; while reliability in Target Present Lineups increased and …

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Mice With Deficient Bk Channel Function Show Impaired Prepulse Inhibition And Spatial Learning, But Normal Working And Spatial Reference Memory., Marei Typlt, Magdalena Mirkowski, Erin Azzopardi, Lukas Ruettiger, Peter Ruth, Susanne Schmid Jan 2013

Mice With Deficient Bk Channel Function Show Impaired Prepulse Inhibition And Spatial Learning, But Normal Working And Spatial Reference Memory., Marei Typlt, Magdalena Mirkowski, Erin Azzopardi, Lukas Ruettiger, Peter Ruth, Susanne Schmid

Brain and Mind Institute Researchers' Publications

Genetic variations in the large-conductance, voltage- and calcium activated potassium channels (BK channels) have been recently implicated in mental retardation, autism and schizophrenia which all come along with severe cognitive impairments. In the present study we investigate the effects of functional BK channel deletion on cognition using a genetic mouse model with a knock-out of the gene for the pore forming α-subunit of the channel. We tested the F1 generation of a hybrid SV129/C57BL6 mouse line in which the slo1 gene was deleted in both parent strains. We first evaluated hearing and motor function to establish the suitability of this …

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Hypnosis, Hypnotizability, Memory And Involvement In Films, Reed Maxwell Jan 2013

Hypnosis, Hypnotizability, Memory And Involvement In Films, Reed Maxwell

Graduate Dissertations and Theses

Researchers have reported increased involvement in reading (Baum and Lynn, 1981) and music-listening (Snodgrass and Lynn, 1989) tasks during hypnosis. We predicted a similar effect for film viewing of greater absorption and involvement in an emotional (The Champ) versus a non-emotional ( Scenes of Toronto) film clip. We also examined the effects of hypnosis and film valence on memory and state depersonalization. Our study is the first to use state dissociation to index response to hypnosis. We tested 121 participants who completed measures of absorption and trait dissociation and the Harvard Group Scale of Hypnotic Susceptibility and …

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The Role Of World Knowledge And Episodic Memory In Scripted Narratives, Micah L. Mumper Jan 2013

The Role Of World Knowledge And Episodic Memory In Scripted Narratives, Micah L. Mumper

Psychology Honors Projects

Readers recruit information from both general world knowledge and episodic memory during reading comprehension. The present experiment used eye tracking to investigate the time-course of how these two sources of memory interact. Participants read passages describing scenarios in which an actor performs a role that was either scriptually appropriate or inappropriate. Half the passages containing the inappropriate role-filler were preceded by an episodic justification for this scriptural violation. Using the same paradigm, Cook and Myers (2004) found context had an early influence on the integration of the role-filler, but world knowledge showed a later effect in the post-target region. The …

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