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Full-Text Articles in Cognitive Psychology
The Influence Of Prediction Error Strength On Reconsolidation, Kevin D. Mohawk
The Influence Of Prediction Error Strength On Reconsolidation, Kevin D. Mohawk
UNLV Theses, Dissertations, Professional Papers, and Capstones
It has been well established that consolidated memories can be reactivated and enter a labile state where they are once again vulnerable to modification. Reactivated memories, therefore, need to be restabilized or reconsolidated. Prediction error (PE) is one of the most common ways of reactivating consolidated memories, yet no studies have examined how varying the strength of PE influences reconsolidation. The present study aimed to determine if the strength of PE is an important factor for triggering reconsolidation and if so, how PE strength influences the reconsolidation process, whether through strengthening or weakening the memory. To vary PE strength, participants …
The Effect Of Sleep And Emotion On Pattern Separation, Alanna N. Osmanski
The Effect Of Sleep And Emotion On Pattern Separation, Alanna N. Osmanski
UNLV Theses, Dissertations, Professional Papers, and Capstones
Prior work on the relationship between sleep and memory suggests that the sleep state is an optimal time for memory consolidation to occur. During slow wave sleep, newly encoded information in the hippocampus is repeatedly activated, driven by slow oscillations that originate in the neocortex. This process that occurs during slow wave sleep facilitates the long-term storage of memories. A widely accepted view of emotion and sleep is that emotional memories are preferentially consolidated during sleep so that they are easily accessible for retrieval, whereas neutral memories tend to be less accessible. However, recent meta-analyses of sleep, emotion, and memory …
Comparing Comics And Illustrated Texts In Multimedia Learning, Jackson S. Pelzner
Comparing Comics And Illustrated Texts In Multimedia Learning, Jackson S. Pelzner
UNLV Theses, Dissertations, Professional Papers, and Capstones
The purpose of this research was to examine how different forms of media, in particular science comics and illustrated texts, contribute to different patterns of learning. While the standard illustrated text seen in a textbook has been a useful tool for instruction, science comics appear to be an alternative that could be used in lieu of media that use the traditional illustrated text format. The comic format, known more for its visual appeal to readers, is consistent with the principles of the Cognitive Theory of Multimedia Learning (Mayer, 2009), though comprehension may require different mechanisms (Cohn, 2013a). It was hypothesized …
Memory And Stereotypes For Lesbian/Gay Characters, Amber Rose Williams
Memory And Stereotypes For Lesbian/Gay Characters, Amber Rose Williams
UNLV Theses, Dissertations, Professional Papers, and Capstones
Stereotype-consistency bias refers to the idea that people tend to remember stereotypical information about others better than non-stereotypical information (Fyock & Stangor, 1994). Limited research has examined how people may use stereotype-consistency bias when recalling information about LGBT characters in narratives (Bellezza & Bower, 1981; Clark & Woll, 1981; McGann & Goodwin, 2007; Snyder & Uranowitz, 1978). This line of research suggests that, instead of genuinely remembering stereotypical information better, participants tended to guess stereotypical answers to questions they do not know. In contrast to those studies, the experiment I conducted for this thesis suggests that heterosexual young adults tend …
Reconsolidation: Unique Cognitive Process Or State Dependent Learning?, Chris Kiley
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
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 …
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
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 …