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Articles 1 - 4 of 4
Full-Text Articles in Biological Psychology
Testosterone Reactivity And Neural Activation In The Mid Task, Yoojin Lee
Testosterone Reactivity And Neural Activation In The Mid Task, Yoojin Lee
University of New Orleans Theses and Dissertations
The purpose of the project was to determine if testosterone reactivity and neural changes could be observed in response to a reward-seeking competitive task, respectively, and whether testosterone was related to neural activation. Forty nine undergraduate students were recruited playing the Monetary Incentive Delay (MID). We found that a subset of participants (N=20) showed testosterone reactivity to the task (ps < .05). During the EEG analyses, cue had a main effect on FRN amplitude in a trend level (p = .084): The large incentive cue triggered smaller (less negative) FRN amplitude than the small incentive cue did (p < .05), especially during the second reward seeking block (A’) (p = .065) and especially within males (p < .05). Testosterone level and reactivity were not further associated with FRN amplitude (ps > .1). Taken together, results show both testosterone and …
Implicit Theories Of Intelligence And Learning A Novel Mathematics Task, Nathan Oehme Rudig
Implicit Theories Of Intelligence And Learning A Novel Mathematics Task, Nathan Oehme Rudig
UNLV Theses, Dissertations, Professional Papers, and Capstones
The social-cognitive model of motivation states that students adopt a theory of the nature of intelligence that guides their goals in academia and their responses to academic setbacks. Students who believe intelligence is an unchanging entity within them are more likely to adopt goals to display high ability, hide low ability, and respond helplessly to failed schoolwork. Conversely, a student who believes intelligence is a measure of effort and persistence will be motivated to gather knowledge and acquire new skills. The current study investigated the role theories of intelligence play in the field of mathematics understanding. In two experiments, participants …
The Interaction Between Spatial Working And Reference Memory In Rats On A Radial Maze, Nicole Ann Guitar
The Interaction Between Spatial Working And Reference Memory In Rats On A Radial Maze, Nicole Ann Guitar
Undergraduate Honors Theses
The present study investigated the interaction between working and reference spatial memory in an effort to develop an animal model of this interaction. Twelve male Long-Evans rats were tested on an eight-arm radial maze in a two-phase procedure. In the study phase, a rat was allowed to enter four randomly selected arms for a food reward placed at the end of each arm. The test phase allowed the rat access to all eight arms, but only the previously unentered arms contained food. Two of the correct test arms were defined as reference memory arms because they were always correct. The …
Changes In Cerebral White Matter, Vascular Risk And Cognition Across The Adult Lifespan, Andrew Robert Bender
Changes In Cerebral White Matter, Vascular Risk And Cognition Across The Adult Lifespan, Andrew Robert Bender
Wayne State University Dissertations
Numerous studies over the past decade have used diffusion tensor imaging (DTI) to examine associations between age, diffusion and anisotropy measures of cerebral white matter (WM), and cognitive performance. However, few have examined relationships between intra-individual change in DTI measures of WM and cognitive function. It is possible that the extant cross-sectional findings are a poor representation of age-related change in WM and cognition. The present study used latent difference-score modeling (LDM) to assess change over two years in DTI indices fractional anisotropy (FA), radial diffusivity (DR), axial diffusivity (DA) and mean diffusivity (MD). In addition, we examined the effects …