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Psychology

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Memory

UNLV Theses, Dissertations, Professional Papers, and Capstones

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Reconsolidation: Unique Cognitive Process Or State Dependent Learning?, Chris Kiley May 2019

Reconsolidation: Unique Cognitive Process Or State Dependent Learning?, Chris Kiley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Accessing a previously consolidated memory trace brings it back into a labile state where it must then undergo a re-stabilization process known as reconsolidation. During this process memories are susceptible to interference and may be updated with new information. Reconsolidation has been demonstrated in animals as well as in the procedural and episodic human memory systems. However, it is still unclear when the effect will occur. Some studies suggest that reconsolidation is only necessary when new information is presented in the same spatial context or when prediction error occurs. More recent work has provided evidence that reconsolidation could be due ...


Reconsolidating: The Effect Of Spatial Context And Expectations, Chris R. Kiley May 2017

Reconsolidating: The Effect Of Spatial Context And Expectations, Chris R. Kiley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Consolidation is the process by which memories become stable over time. Accessing a previously consolidated memory trace brings it back into a labile state where it must then undergo a re-stabilization process known as reconsolidation. During this process memories are again susceptible to interference and may be updated with new information. Reconsolidation has been demonstrated in animals as well as in the procedural and episodic human memory systems. The exact boundary conditions for reconsolidation are not yet known. Some studies suggest that reconsolidation is only necessary when new information is presented in a spatial context that is indistinguishable from the ...


Effects Of Instructor Attractiveness On Classroom Learning, Richard Shane Westfall May 2015

Effects Of Instructor Attractiveness On Classroom Learning, Richard Shane Westfall

UNLV Theses, Dissertations, Professional Papers, and Capstones

Although there have been multiple studies examining the effects of physical attractiveness on a variety of human interactions, one domain has been largely overlooked. The current thesis examined the effect of teacher attractiveness on a learning task. Specifically participants were exposed to a photograph that they believed was their instructor while listening to an audio lecture. Upon completion of the lecture participants then completed a forced choice recognition task covering material from the lecture. I hypothesized that participants would perform significantly better on the learning task when they perceived their instructor to be high in physical attractiveness. Neither the gender ...


Performance Or Processing? Effects Of Levels Of Processing And Divided Attention On Memory-Related Eye Movements, Wei An Dec 2014

Performance Or Processing? Effects Of Levels Of Processing And Divided Attention On Memory-Related Eye Movements, Wei An

UNLV Theses, Dissertations, Professional Papers, and Capstones

Human memories are expressed either with or without consciousness, termed as explicit and implicit memories, respectively. Different encoding manipulations like levels of processing and divided attention have been shown to affect explicit memories but not implicit memories. These dissociations, however, were only found between explicit and implicit item memories. Whether explicit and implicit relational memories will exhibit similar dissociations is still unknown. In order to determine whether explicit and implicit relational memories dissociated in a similar way as explicit and implicit item memories, the levels of processing and divided attention were manipulated in the present study and participants' relational memories ...


The Formation Of Situation Models In Multimedia, Kris Gunawan May 2014

The Formation Of Situation Models In Multimedia, Kris Gunawan

UNLV Theses, Dissertations, Professional Papers, and Capstones

When people read traditional text-based stories, they construct mental representations of the described state of affairs, called situation models, to connect various details of events (e.g., time, space, entity) in memory (Zwaan & Radvansky, 1998). According to the cognitive theory of multimedia learning (Mayer, 2005; 2011), stories presented as pictures and text generate independent channels of mental representations that can work hand-in-hand or separately to acquire and remember the materials presented. This dissertation consisted of two experiments that were used to further explore how the two modalities affect what is being mentally represented in memory. In Experiment 1, participants were presented with a story called The War of the Ghosts through pictures-only ...


Construct And Criterion Validity Of The Rey Auditory Verbal Learning Test-Spanish Version In Adults With Traumatic Brain Injury, Cristobal Neblina Aug 2012

Construct And Criterion Validity Of The Rey Auditory Verbal Learning Test-Spanish Version In Adults With Traumatic Brain Injury, Cristobal Neblina

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Rey Auditory Verbal Learning Test (RAVLT) is among the most commonly used English-language neuropsychological tests of verbal learning and memory. Previous research supports the validity and clinical utility of adaptations of the RAVLT into many diverse languages. In the United States, Hispanics represent the largest and fastest-growing ethnic minority group. As the Hispanic populace continues to grow, so does the need for empirically validated Spanish-language neuropsychological measures. In 2002, a Spanish adaptation of the RAVLT was developed in Puerto Rico (Acevedo-Vargas, 2002). However, validation studies have not been undertaken with clinical samples, and little is known regarding its psychometric ...


Affect Identification And Interpersonal Skills: An In-Depth Evaluation Of Social Cognition In Schizophrenia, Griffin Pollock Sutton Aug 2012

Affect Identification And Interpersonal Skills: An In-Depth Evaluation Of Social Cognition In Schizophrenia, Griffin Pollock Sutton

UNLV Theses, Dissertations, Professional Papers, and Capstones

The presence of deficits in various sub-domains of social cognition has been investigated to a degree in individuals with schizophrenia. Some of the most commonly researched and documented deficits have included impairments in the identification of affect portrayed in faces. Research has indicated that the performance of individuals with schizophrenia on such tasks is generally impaired as compared to normal controls. However, some have questioned the generalizability of such findings to real-world situations, as day-to-day interactions generally necessitate a constant, fluid assessment of the thoughts and feelings of others and are rarely, if ever, limited to still images of others ...


Interactive Effects Of Working Memory Self-Regulatory Ability And Relevance Instructions On Text Processing, Nancy Jo Hamilton May 2012

Interactive Effects Of Working Memory Self-Regulatory Ability And Relevance Instructions On Text Processing, Nancy Jo Hamilton

UNLV Theses, Dissertations, Professional Papers, and Capstones

Reading is a process that requires the enactment of many cognitive processes. Each of these processes uses a certain amount of working memory resources, which are severely constrained by biology. More efficiency in the function of working memory may mediate the biological limits of same. Reading relevancy instructions may be one such method to assist readers in utilizing working memory resources more efficiently.

This study examines the relationship between perspective relevance instructions and participants' ability to regulate their working memory resources. In a 3 x 2 x 2 design the study extended the literature by utilizing a measure of fluid ...