Open Access. Powered by Scholars. Published by Universities.®

Psychology Commons™

Open Access. Powered by Scholars. Published by Universities.®

Series

2018

Memory

Articles 1 - 12 of 12

Full-Text Articles in Psychology

Impaired Object-Location Learning And Recognition Memory But Enhanced Sustained Attention In M2 Muscarinic Receptor-Deficient Mice, Carola Romberg, Susan Bartko, Jürgen Wess, Lisa M. Saksida, Timothy J. Bussey Dec 2018

Impaired Object-Location Learning And Recognition Memory But Enhanced Sustained Attention In M2 Muscarinic Receptor-Deficient Mice, Carola Romberg, Susan Bartko, Jürgen Wess, Lisa M. Saksida, Timothy J. Bussey

Brain and Mind Institute Researchers' Publications

© 2018, The Author(s). Rationale: Muscarinic acetylcholine receptors are known to play key roles in mediating cognitive processes, and impaired muscarinic cholinergic neurotransmission is associated with normal ageing processes and Alzheimer’s disease. However, the specific contributions of the individual muscarinic receptor subtypes (M1–M5) to cognition are presently not well understood. Objectives: The aim of this study was to investigate the contribution of M2-type muscarinic receptor signalling to sustained attention, executive control and learning and memory. Methods: M2 receptor-deficient (M2−/−) mice were tested on a touchscreen-operated task battery testing visual discrimination, behavioural flexibility, object-location associative learning, attention and response control. Spontaneous …

Go to article

Pilot Investigation Of The Relationship Between Hippocampal Volume And Pattern Separation Deficits In Multiple Sclerosis, Mark D. Zuppichini, Joshua Sandry Nov 2018

Pilot Investigation Of The Relationship Between Hippocampal Volume And Pattern Separation Deficits In Multiple Sclerosis, Mark D. Zuppichini, Joshua Sandry

Department of Psychology Faculty Scholarship and Creative Works

Memory impairment and hippocampal atrophy are common in multiple sclerosis (MS). In the present pilot study, we investigate whether the mnemonic process of pattern separation is impaired and a predictor of hippocampal volume in relapsing remitting MS. MS participants and healthy controls completed the Mnemonic Similarities Task (MST) along with traditional neurocognitive assessments of memory. 3T structural magnetic resonance imaging was used to estimate whole hippocampal volumes (main aim) and hippocampal subfield volumes (exploratory aim). Results revealed that pattern separation performance was worse for MS participants compared to healthy controls (Cohen's d = 0.96). For MS participants, hippocampal volume was …

Go to article

Procedural-Memory, Working-Memory, And Declarative-Memory Skills Are Each Associated With Dimensional Integration In Sound-Category Learning, Carolyn Quam, Alisa Wang, W. Todd Maddox, Kimberly Golisch Oct 2018

Procedural-Memory, Working-Memory, And Declarative-Memory Skills Are Each Associated With Dimensional Integration In Sound-Category Learning, Carolyn Quam, Alisa Wang, W. Todd Maddox, Kimberly Golisch

Speech and Hearing Sciences Faculty Publications and Presentations

This paper investigates relationships between procedural-memory, declarative-memory, and working-memory skills and adult native English speakers’ novel sound-category learning. Participants completed a sound-categorization task that required integrating two dimensions: one native (vowel quality), one non-native (pitch). Similar information-integration category structures in the visual and auditory domains have been shown to be best learned implicitly (e.g., Maddox et al., 2006). Thus, we predicted that individuals with greater procedural-memory capacity would better learn sound categories, because procedural memory appears to support implicit learning of new information and integration of dimensions. Seventy undergraduates were tested across two experiments. Procedural memory was assessed using …

Go to article

A Field Study Examining The Effect Of High Intoxication Levels And Identification Format On Witnesses' Memory For Faces And Events, Christopher Altman Jun 2018

A Field Study Examining The Effect Of High Intoxication Levels And Identification Format On Witnesses' Memory For Faces And Events, Christopher Altman

FIU Electronic Theses and Dissertations

Members of the legal system (e.g., experts, jurors, investigators) are often skeptical of the information provided by intoxicated witnesses given the negative stigma surrounding alcohol and memory. However, studies examining the relationship between alcohol and witness memory often find that alcohol has no effect on peoples’ recall or their ability to identify a previously seen face. While insightful, the validity of these findings has been questioned given the low-moderate blood alcohol concentration (BAC) levels tested in these predominantly laboratory-based studies, which may not be high enough to consistently expose the cognitive deficits alcohol is expected to create. The present study …

Go to article

Association Between Toxoplasma Gondii Seropositivity And Memory Function In Non-Demented Older Adults, Cynthia Elizabeth Wyman, Shawn D. Gale, Ariana Hedges-Muncy, Lance D. Erickson, Eric Wilson, Dawson W. Hedges May 2018

Association Between Toxoplasma Gondii Seropositivity And Memory Function In Non-Demented Older Adults, Cynthia Elizabeth Wyman, Shawn D. Gale, Ariana Hedges-Muncy, Lance D. Erickson, Eric Wilson, Dawson W. Hedges

Faculty Publications

Toxoplasma gondii (T. gondii) seropositivity may be associated with decreased memory in older adults. To further investigate the association between T. gondii seropositivity and memory in nondemented older adults, we obtained serum samples from 114 non-demented older adults evaluated by the Alzheimer’s Disease and Research Center at Washington University in St. Louis Missouri, USA. We determined T. gondii seropositivity and anti-T. gondii IgG antibody titer and examined associations with memory function while controlling for socioeconomic status, education level, age, and apolipoprotein E4 status. There were few associations between T. gondii seropositivity or anti-T. gondii IgG antibodies and memory, although there …

Go to article

Aging And Biases In Spatial Memory: A Dynamic Field Approach, Gregory J. Degirolamo May 2018

Aging And Biases In Spatial Memory: A Dynamic Field Approach, Gregory J. Degirolamo

Department of Psychology: Dissertations, Theses, and Student Research

Spatial cognition encompasses a wide variety of abilities and requires the interaction of several regions of the brain, including the hippocampus, striatum, and pre-frontal cortex (PFC). (Packard & McGaugh, 1996; Reuter-Lorenz et al., 2000). Given that these areas atrophy in later adulthood (Golomb et al., 1993; Raz et al., 2003; Aizenstein et al., 2006), it raises the question of how spatial cognition changes with age. It has been found that increased task complexity leads to an age-related decline in performance (Nagel et al., 2009). Other factors that lead to a decline in memory performance in older adults include whether the …

Go to article

Does The Mere Presence Of A Cell Phone Impair Task Performance?, Sabrina Urick, Kaylee Egbers, Veronica Sinell Apr 2018

Does The Mere Presence Of A Cell Phone Impair Task Performance?, Sabrina Urick, Kaylee Egbers, Veronica Sinell

Celebrating Scholarship and Creativity Day (2018-)

The purpose of our study was to determine if the mere presence of a person’s cell phone serves as a distraction that impairs task performance, even if the person does not use it. In order to test this, we had two groups of participants complete several tasks that require attention and accurate memory in order to perform well. The tasks used were a card matching game (sometimes known as Concentration), a sequential memory game (Simon), and the n-back task. One group was instructed to put their cell phones away before they were presented with the tasks and the other group …

Go to article

Multi-Tasking: The Relationship Between Watching A Video And Memory, Kori L. Friedges Apr 2018

Multi-Tasking: The Relationship Between Watching A Video And Memory, Kori L. Friedges

Celebrating Scholarship and Creativity Day (2018-)

This study investigates the relationship between media multitasking and memory among undergraduate students at a small, liberal arts college in Minnesota. The participants (N=20) were randomly assigned using block randomization to either the experimental group which was asked to study a list of 20 words while watching a video clip or the control group which only studied the set of 20 words. All of the participants were given 2 minutes to study the list of 20 words and then 2 minutes to write as many words as they could recall from their memory. The participants who watched the video clip …

Go to article

Motivational Valence Alters Memory Formation Without Altering Exploration Of A Real-Life Spatial Environment, Kimberly S. Chiew, Jordan Hashemi, Lee K. Gans, Laura Lerebours, Nathaniel J. Clement, Mai-Anh T. Vu, Guillermo Sapiro, Nicole E. Heller, R. Alison Adcock Mar 2018

Motivational Valence Alters Memory Formation Without Altering Exploration Of A Real-Life Spatial Environment, Kimberly S. Chiew, Jordan Hashemi, Lee K. Gans, Laura Lerebours, Nathaniel J. Clement, Mai-Anh T. Vu, Guillermo Sapiro, Nicole E. Heller, R. Alison Adcock

Psychology: Faculty Scholarship

Volitional exploration and learning are key to adaptive behavior, yet their characterization remains a complex problem for cognitive science. Exploration has been posited as a mechanism by which motivation promotes memory, but this relationship is not well-understood, in part because novel stimuli that motivate exploration also reliably elicit changes in neuromodulatory brain systems that directly alter memory formation, via effects on neural plasticity. To deconfound interrelationships between motivation, exploration, and memory formation we manipulated motivational state prior to entering a spatial context, measured exploratory responses to the context and novel stimuli within it, and then examined motivation and exploration as …

Go to article

The Human 'As-If'-Function And Its Loss In Schizophrenia, Thomas Fuchs Mar 2018

The Human 'As-If'-Function And Its Loss In Schizophrenia, Thomas Fuchs

Phenomenology Center Annual Symposium

No abstract provided.

Go to article

Body Memory And The Unconscious, Thomas Fuchs Mar 2018

Body Memory And The Unconscious, Thomas Fuchs

Phenomenology Center Annual Symposium

No abstract provided.

Go to article

Social Contact Patterns Can Buffer Costs Of Forgetting In The Evolution Of Cooperation, Jeffrey R. Stevens, Jan K. Woike, Lael J. Schooler, Stefan Lindner, Thorsten Pachur Jan 2018

Social Contact Patterns Can Buffer Costs Of Forgetting In The Evolution Of Cooperation, Jeffrey R. Stevens, Jan K. Woike, Lael J. Schooler, Stefan Lindner, Thorsten Pachur

Jeffrey Stevens Publications

Analyses of the evolution of cooperation often rely on two simplifying assumptions: (i) individuals interact equally frequently with all social network members and (ii) they accurately remember each partner's past cooperation or defection. Here, we examine how more realistic, skewed patterns of contact—in which individuals interact primarily with only a subset of their network's members—influence cooperation. In addition, we test whether skewed contact patterns can counteract the decrease in cooperation caused by memory errors (i.e. forgetting). Finally, we compare two types of memory error that vary in whether forgotten interactions are replaced with random actions or with actions from previous …

Go to article