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Full-Text Articles in Psychology

Assessing Working Memory In Mild Cognitive Impairment With Serial Order Recall, Sheina Emrani May 2018

Assessing Working Memory In Mild Cognitive Impairment With Serial Order Recall, Sheina Emrani

Theses and Dissertations

Background: Working memory (WM) is often assessed with serial order tests such as repeating digits backward. In prior dementia research using the Backward Digit Span subtest (BDT) only aggregate test performance was examined. The current research tallied primacy/ recency effects; out-of-sequence transposition errors; perseverations and omissions to assess WM deficits in patients with mild cognitive impairment (MCI). Methods: Memory clinic patients (n= 66) were classified into three groups - single domain amnestic MCI (aMCI), combined mixed domain/ dysexecutive MCI (mixed/dys MCI), and non-MCI where patients did not meet criteria for MCI. Serial order/ WM ability was assessed by …


Habit Formation In Active Avoidance, Kelsey J. Burke May 2018

Habit Formation In Active Avoidance, Kelsey J. Burke

Theses and Dissertations

Two studies explored feedback value in avoidance learning using rats. We show that limited, but not extended trained rats were sensitive to feedback devaluation via counterconditioning. Identical effects on motivational transfer were obtained. These results suggest that maladaptive avoidance may be established in a similar way to habits of consumption.


Developing A Cyberterrorism Policy: Incorporating Individual Values, Osama Bassam J. Rabie Jan 2018

Developing A Cyberterrorism Policy: Incorporating Individual Values, Osama Bassam J. Rabie

Theses and Dissertations

Preventing cyberterrorism is becoming a necessity for individuals, organizations, and governments. However, current policies focus on technical and managerial aspects without asking for experts and non-experts values and preferences for preventing cyberterrorism. This study employs value focused thinking and public value forum to bare strategic measures and alternatives for complex policy decisions for preventing cyberterrorism. The strategic measures and alternatives are per socio-technical process.


Differences In Spatial Visualization Ability And Vividness Of Spatial Imagery Between People With And Without Aphantasia, Anita Crowder Jan 2018

Differences In Spatial Visualization Ability And Vividness Of Spatial Imagery Between People With And Without Aphantasia, Anita Crowder

Theses and Dissertations

Mathematics education researchers have examined the relationship between visualization and mathematics for decades (e.g., Arcavi, 2003; Bishop, 1991; Duval, 1999; Fennema & Tartre, 1985; Presmeg, 1986). Studies have linked spatial visualization ability, such as measured in mental rotation tasks, directly to mathematics self-efficacy (Pajares & Kranzler, 1995; Weckbacher & Okamoto, 2014), which in turn influences mathematics achievement (Casey, Nuttall, & Pezaris, 1997). With the important role that spatial visualization plays in learning mathematics, the recent identification of congenital aphantasia (Zeman, Dewar, & Della Sala, 2015), which is the lack of mental imagery ability, has raised new questions for mathematics education …


Effects Of A 2-Week Exercise Intervention On Heart Rate Variability In Individuals With Low And High Anxiety Sensitivity, Hannah M. Kotarski Jan 2018

Effects Of A 2-Week Exercise Intervention On Heart Rate Variability In Individuals With Low And High Anxiety Sensitivity, Hannah M. Kotarski

Theses and Dissertations

Anxiety Sensitivity (AS), the belief that anxiety-related sensations may have harmful implications, can alter autonomic nervous system (ANS) function. Exercise has previously been shown to reduce AS; however, the effects of an exercise intervention on heart rate variability (HRV), a measure of ANS function, has not been evaluated in individuals with high AS. This study sought to 1) compare resting HRV in individuals with either low (LAS) or high AS (HAS) and 2) evaluate the effects of a 2-week exercise intervention on HRV and AS. Using the Anxiety Sensitivity Index (ASI-3), participants were identified as LAS (n=9; ASI-3=5.89±1.39) or HAS …