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Articles 571 - 600 of 959
Full-Text Articles in Psychiatry and Psychology
Mindfulness Training's Effect On Stress, Attention, And Perfectionism And Their Relationship To Achievement Goals, Alexandra Lesniak
Mindfulness Training's Effect On Stress, Attention, And Perfectionism And Their Relationship To Achievement Goals, Alexandra Lesniak
Undergraduate Honors Theses
In recent years, the practice of cultivating mindfulness, a nonjudgmental awareness of the present moment, has made a resurgence in areas ranging anywhere from behavioral issues to work and academic productivity (Brown & Ryan, 2003a). The current study was focused on the relationships between mindfulness, achievement styles, stress, attention, and perfectionism at a single-sex, liberal arts institution. One hundred and five undergraduate, female students participated in this study. All participants were randomly assigned to either a mindfulness audio condition or a badminton audio condition as a control. Then, they were given measures relating to achievement goals, mindfulness capability, state mindfulness, …
Changing The Subject Of Sati, Deepa Das Acevedo
Changing The Subject Of Sati, Deepa Das Acevedo
Faculty Articles
Charan Shah's 1999 death was widely considered to be the first sati, or widow immolation, to have occurred in India in over twenty years. Media coverage of the event focused on procedural minutiae-her sari, her demeanor-and ultimately, several progressive commentators came to the counterintuitive conclusion that the ritually anomalous nature of Charan's death confirmed its voluntary, secular, and noncriminal nature. This article argues that the "unlabeling" of Charan's death, like those of other women between 1999 and 2006, reflects a tension between the nonindividuated, impervious model of personhood exemplified by sati and the particularized citizen-subject of liberal-democratic politics in India.
The Efficacy Of Yoga As An Adjunctive Therapy To Standard Multidisciplinary Care In The Treatment Of Female Patients Presenting With Cognitive Eating Disorder Symptoms, Cassidy Nagle
Capstone Showcase
Introduction: Current treatment of patients exhibiting cognitive eating disorder symptoms is standard multidisciplinary care (SMDC) involving behavioral therapy, medical management and dietetics. Because these symptoms often persist or relapse despite treatment, research has begun to explore adjunctive therapies like yoga for this population. This review will explore seven studies in order to analyze the effect of yoga (I) on cognitive eating disorder symptoms (O) in teenage and adult females (P) when added to SMDC compared to symptom reduction with SMDC alone (C).
Methods: A literature search was conducted in PubMed, Academic Search Ultimate and Google Scholar starting November 2018. Seven …
College Students’ Perceptions Of Popular Diets And Orthorexia Nervosa, Madison W. Weinstock
College Students’ Perceptions Of Popular Diets And Orthorexia Nervosa, Madison W. Weinstock
Theses and Dissertations
Data suggest that individuals’ purported dietary patterns influence others’ perceptions of them. However, few studies have investigated how adherence to specific popular diets might influence these perceptions. This study investigated female undergraduates’ (n = 463) perceptions of vignette characters described as adhering to specific dietary practices perceptions of a vignette character in a sample of 463 female undergraduates. Characters described as adhering to a Clean Eating diet were viewed most positively, followed by individuals on the Ketogenic diet or nondieters. Characters following an Intermittent Fasting diet, and those with Orthorexia Nervosa were viewed most negatively. These findings support the …
Mood Effects And Individual Differences On Reappraisal And Distraction: An Erp Study Of The Sensitivity Of Emotion Regulation Strategies, Elsa Mastico
All Master's Theses
The present research evaluated the effect of mood and individual differences on the regulatory process of emotions by using a regulation task with negative and neutral images to assess reappraisal and distraction ability. Specifically, this research evaluated the average amplitude of the latent positive potential (latent positivity, LPP) brainwave linked to distraction and reappraisal using an ERP analysis. In addition, the current study compared the modulation of the LPP to the self-reported mood of the participants and their individual differences in regulation ability through scores of a self-report emotion regulation questionnaire. The latent positive potentials from an emotion regulation task …
Fight, Flight, Or Freezing? Investigating The Immobility Response In Military Veterans, Paige Elizabeth King
Fight, Flight, Or Freezing? Investigating The Immobility Response In Military Veterans, Paige Elizabeth King
UNF Graduate Theses and Dissertations
When the body is faced with threat to life or limb, the autonomic nervous system works to overcome the danger – by either fight, flight, or freezing. While immobility may not appear to be the most logical solution, theories exist that it allows for judgement of the situation and preparation for action. This study investigated the stress response that military veterans, with or without post-traumatic stress disorder (PTSD), demonstrate when shown unpleasant images. Researchers wanted to determine the extent to which veterans would show freezing or immobile responses when under an unpleasant image condition. It was hypothesized that veterans who …
Military Veteran Students Transition To Academic Life With Ptsd, Trauma, And Potential For Freezing Response., Alicia Marie Erchul
Military Veteran Students Transition To Academic Life With Ptsd, Trauma, And Potential For Freezing Response., Alicia Marie Erchul
UNF Graduate Theses and Dissertations
The current study is the first known research to investigate the association of the freezing response with PTSD and traumatic stress in the military veteran student population. Current understanding of the freezing response are primarily based in comparative psychology, with some studies extending to human participants (Azevedo et al., 2005; Facchinetti et al., 2006; Hagenaars et al., 2012; Volchan et al., 2017). Models generally agree that the freezing response consists of reduced body sway with decreased heart rate (Porges, 2003, 2007; Hagenaars et al., 2014).
Thirty-eight military veteran students (n=38; 18 female; 20 male) with ages ranged from 19 to …
Signaling Mechanism Responsible For 5-Ht2a Receptor Tolerance To Psychedelic Induced Head-Twitch Behavior In Mice, Audrey R. Mcmurtrie
Signaling Mechanism Responsible For 5-Ht2a Receptor Tolerance To Psychedelic Induced Head-Twitch Behavior In Mice, Audrey R. Mcmurtrie
Theses and Dissertations
In recent years, there has been a growing interest in psychedelic compounds stemming from their promising use as therapeutic agents and research tools that can be used to treat and study several neuropsychiatric disorders. Psychedelics have proven useful in a broad range of these diseases - they serve as models for psychosis in schizophrenia but have also had promising results in treating major depressive disorder, anxiety, and other common disorders. Decreased stigmatization surrounding psychedelics has further increased their use in research and clinical settings. In light of these trends and the promising nature of their use, a thorough understanding of …
Black Women And Body Image: Implications Of The Racialized Beauty Aesthetic, Rachel L. Boutte
Black Women And Body Image: Implications Of The Racialized Beauty Aesthetic, Rachel L. Boutte
Theses and Dissertations
Black women have the highest prevalence of overweight and obesity relative to any other demographic group in the United States, however current weight management interventions appear least effective for them. Although several hypotheses have been proposed to explain these outcomes, few studies have collected data to evaluate how well they fit the lived experiences of Black women. In particular, the potential roles of body image and body dissatisfaction in the development and maintenance of overweight and obesity in Black women are not well understood. Extant literature largely reports that Black women are inoculated from body dissatisfaction due to cultural factors, …
What Makes An Image Memorable? Effects Of Encoding On The Mechanism Of Recognition, Asiya Gul
What Makes An Image Memorable? Effects Of Encoding On The Mechanism Of Recognition, Asiya Gul
Theses and Dissertations (Comprehensive)
Memory is undoubtedly one of the most important processes of human cognition. A long line of research suggests that recognition relies on the assessment of two explicit memory phenomena: familiarity and recollection. Researchers who support the Dual Process Signal Detection (DPSD) model of recognition memory link the FN400 component (a negative ERP deflection peaking around 400 ms at frontal electrodes) with familiarity; however, it is currently unclear whether the FN400 reflects familiarity or implicit memory. Three event-related potentials (ERP) studies were conducted to determine whether implicit memory plays a role in setting up encoding strategies, and how these encoding strategies …
Retrieval-Induced Forgetting In Autism Spectrum: Combining Narrative Experience With Clinical Research To Explore Stress-Induced, Transitory Retrograde Amnesia, Elizabeth Willsmore-Finkle
Retrieval-Induced Forgetting In Autism Spectrum: Combining Narrative Experience With Clinical Research To Explore Stress-Induced, Transitory Retrograde Amnesia, Elizabeth Willsmore-Finkle
Scripps Senior Theses
Currently, psychological research explores autism, a blanket term for a range of neurobiological and developmental differences, through a clinical, as opposed to an experiential, lens. Autism has only existed as formal diagnosis under that name since 1943 (Kanner); however, the advocacy of activists such as Temple Grandin, a slaughterhouse systems designer best known for documenting her life with autism in a series of autobiographic accounts, has begun to legitimize the incorporation of emic experiences of autism within clinical research. Researcher Dermot Bowler and colleagues (2011) have conducted extensive reviews of memory distinctions in autism, finding differences of varying degrees across …
The Healing Power Of The Arts - Drama Therapy And The Use Of Theatre In The Treatment Of Trauma, Brooklyn Snyder
The Healing Power Of The Arts - Drama Therapy And The Use Of Theatre In The Treatment Of Trauma, Brooklyn Snyder
Student Scholar Symposium Abstracts and Posters
Theatre is an incredibly valuable therapeutic tool. In this thesis, I explore the ways in which trauma can reshape individuals lives, both cognitively and physically, impeding their sense of self, ability to trust, engagement, and many other seemingly ordinary aspects of day to day life that those of us unaffected by trauma take for granted. Additionally, I cover how employing theatrical tools, like improvisation and role play, can act as a beneficial treatment option for those who have suffered a traumatic past. Drama therapy allows individuals to reconnect with their bodies and their minds, gain new perspectives on their experiences, …
Influences Of Reasoning And Achievement Motivation On Complex Problem Solving In A New Microworld Operationalization, Stephan Bartholdy, Ulrike Kipman
Influences Of Reasoning And Achievement Motivation On Complex Problem Solving In A New Microworld Operationalization, Stephan Bartholdy, Ulrike Kipman
Journal of Global Education and Research
Complex Problem Solving (CPS) can be defined as those psychological processes that enable a person to achieve goals under complex conditions, which are characterized by their complexity, connectivity, dynamics, lack of transparency, and polytely. Although many hypothesized influences have previously been tested concerning their relevance for the process of solving complex problems (e.g., general intelligence), results were often found to be rather heterogeneous. As this was found to be partially caused by fundamental differences between measurements of CPS, a new operationalization was used in the present study: Following the Microworld approach, CPS was assessed in the simulation game Cities: Skylines …
Change In Relationship Satisfaction Among Veterans In Couple Therapy, Grace Boyers Mckee
Change In Relationship Satisfaction Among Veterans In Couple Therapy, Grace Boyers Mckee
Psychology Theses and Dissertations
Approximately two-thirds of Americans will live with a romantic partner at some point in their lives, and 75% of individuals marry by age 30. Unfortunately, relationship dissatisfaction is a common occurrence, with as many as one-third of couples reporting relationship distress. Although many forms of couple therapy are effective for improving relationship satisfaction and reduces the risk of divorce among distressed couples, no one form of couple therapy has clearly been established as superior. Moreover, relatively little is known about how and why couple therapy has its effects. Improved understanding of what change may occur, as well as common trajectories …
Components Of Mindfulness Training: Impacts On Attention And Affect, Maximilian Fey
Components Of Mindfulness Training: Impacts On Attention And Affect, Maximilian Fey
Graduate Theses and Dissertations
The literature on mindfulness supports a distinction between two components of non-judgmental acceptance and directed attention. The present research analyzed whether there are distinct differences in attentional capabilities or affect between mindfulness inductions which differed in either including only directed attention or directed attention and non-judgmental acceptance. I hypothesized that the acceptance component of mindfulness would increase participants sustained attentional capabilities relative to a control condition; furthermore, I hypothesized that the non-judgmental acceptance component of mindfulness would lead to significant increases in positive affect and decreases in negative affect relative to control. Lastly, I hypothesized that an individual difference measure …
Internalized And Anticipated Stigmatization In Patients With Gout, Maria Kleinstäuber, Leonie Wolf, Annie S. K. Jones, Nicola Dalberth, Keith J. Petrie
Internalized And Anticipated Stigmatization In Patients With Gout, Maria Kleinstäuber, Leonie Wolf, Annie S. K. Jones, Nicola Dalberth, Keith J. Petrie
Psychology Faculty Publications
Objective: To investigate the relationship between stigma perception and demographic, clinical, and psychosocial variables. Methods: A sample of 50 patients with gout and prescribed urate-lowering medication (84% were males, mean serum urate 0.34 mmol/l) completed questionnaires on internalized and anticipated stigma, demographics, clinical gout-related variables, and psychosocial variables (illness perceptions, illness-related disability, illness-related body satisfaction, intentional nonadherence). Serum urate level was obtained from the most recent blood test. Results: In this sample, 26% experienced internalized stigma, 26% expected to be stigmatized by friends or family members, and 14% by health care workers. Univariate regression analyses showed that younger age, ethnicity …
Behavioral And Immunohistochemical Characterization Of Rapid Reconditioning Following Extinction Of Contextual Fear, Amy R. Williams, Earnest S. Kim, K Matthews Lattal
Behavioral And Immunohistochemical Characterization Of Rapid Reconditioning Following Extinction Of Contextual Fear, Amy R. Williams, Earnest S. Kim, K Matthews Lattal
Faculty Publications - Psychology Department
A fundamental property of extinction is that the behavior that is suppressed during extinction can be unmasked through a number of postextinction procedures. Of the commonly studied unmasking procedures (spontaneous recovery, reinstatement, contextual renewal, and rapid reacquisition), rapid reacquisition is the only approach that allows a direct comparison between the impact of a conditioning trial before or after extinction. Thus, it provides an opportunity to evaluate the ways in which extinction changes a subsequent learning experience. In five experiments, we investigate the behavioral and neurobiological mechanisms of postextinction reconditioning. We show that rapid reconditioning of unsignaled contextual fear after extinction …
Does Ethnic Identity, In-Group Preference, And Acculturation Protect Latinas With A History Of Interpersonal Trauma From Developing Symptoms Of Ptsd?, Evelyn M. Ramirez
Does Ethnic Identity, In-Group Preference, And Acculturation Protect Latinas With A History Of Interpersonal Trauma From Developing Symptoms Of Ptsd?, Evelyn M. Ramirez
Dissertations, Theses, and Capstone Projects
Previous research suggests ethnic identity, a sense of belonging to a particular cultural group, may be protective against symptoms of post-traumatic stress disorder (PTSD). However, the role of ethnic identity, in-group preference (i.e., an individual’s preference for interactions with members of their own ethnic group) and acculturation (i.e., the level of comfort with the mainstream culture) have not been investigated as protective factors for Latinas with a history of interpersonal and sexual trauma. In this study, ethnic identity, in-group preference and acculturation were assessed via self-report on the Scale of Ethnic Experience in two samples of undergraduate Latina and non-Latina …
The Development Of Face Morphing Task To Assess Self Other Differentiation, Esen Karan
The Development Of Face Morphing Task To Assess Self Other Differentiation, Esen Karan
Dissertations, Theses, and Capstone Projects
Self-Other Differentiation (SOD) refers to a developmental process of acquiring a consolidated, integrated, and individuated sense of self. SOD develops at a) perceptual (e.g., facial perception) and b) representational (e.g., traits, mental states, and beliefs) levels. Impairments in representational SOD (R-SOD) are associated with many forms of psychopathology, particularly borderline personality disorder (BPD) and narcissistic personality disorder (NPD). Few studies to date have examined the perceptual aspects of SOD (P-SOD), which are hypothesized to develop from infancy onwards in tandem and in interaction with R-SOD. Given that the human face is one of the key characteristics that humans use to …
Recent Trends, Current Research In Cyberpsychology: A Literature Review, Amarjit Kumar Singh, Pawan Kumar Singh
Recent Trends, Current Research In Cyberpsychology: A Literature Review, Amarjit Kumar Singh, Pawan Kumar Singh
Library Philosophy and Practice (e-journal)
Cyberpsychology refers to the study of the mind and behavior in the context of interactions with technology. It is an emerging branch, which has focused on the psychological aspects connected to the increasing presence and usages of technology in modern lives. This paper traces recent advancement and trends of Cyberpsychology is an emerging domain of knowledge and goes on the give a literature review of the same. An analysis of the recent research and literature covering 300 most relevant research papers from the period of 2012 to 15, August 2019 was conducted to determine and shape the research pattern based …
How Does Alcohol Intoxication Impair Risk Detection Of Sexual Assault? Testing An Integration Of Alcohol Myopia And Social Information Processing Theories, Alexander James Melkonian
How Does Alcohol Intoxication Impair Risk Detection Of Sexual Assault? Testing An Integration Of Alcohol Myopia And Social Information Processing Theories, Alexander James Melkonian
Graduate Theses and Dissertations
Sexual assault among young adults is a highly prevalent public health concern. Alcohol is often implicated as a risk factor for sexual assault through its impairing effects on an individual’s ability to process and respond to social cues in the environment. The effect of alcohol myopia can result in greater focus of attention on salient environmental cues. The relationship between alcohol intoxication and resulting behavior may depend on what type of information is most salient. The current study examined the effects of alcohol on social information processing as it relates to sexual assault risk detection. Method: Participants were 48 young …
Implicit Bias And The Boundaries Of Belief: A Single-Representational Dual-Attitude Account Of Implicit Attitudes, Austin Dakota Synoground
Implicit Bias And The Boundaries Of Belief: A Single-Representational Dual-Attitude Account Of Implicit Attitudes, Austin Dakota Synoground
Graduate Theses and Dissertations
Since their inception, implicit attitudes have been defined as associative mental states, separate from beliefs, which are considered to be propositional in nature. Recently, several philosophers have challenged this distinction, arguing that implicit attitudes are actually unconscious beliefs. In turn, I argue that the attitudes detected by current experimental paradigms are blind to distinctions between implicit attitudes, which I define as the products of an associative learning mechanism, and unconscious beliefs, which are the products of a propositional learning mechanism. Specifically, I argue for a single-representational dual-attitude account of implicit bias.
Across Continents And Demographics, Unpredictable Maternal Signals Are Associated With Children's Cognitive Function, Elyssia Poggi Davis, Riikka Korja, Linnea Karlsson, Laura Glynn, Curt A. Sandman, Brian Vegetabile, Eeva-Leena Kataja, Saara Nolvi, Eija Sinervä, Juho Pelto, Hasse Karlsson, Hal S. Stern, Tallie Z. Baram
Across Continents And Demographics, Unpredictable Maternal Signals Are Associated With Children's Cognitive Function, Elyssia Poggi Davis, Riikka Korja, Linnea Karlsson, Laura Glynn, Curt A. Sandman, Brian Vegetabile, Eeva-Leena Kataja, Saara Nolvi, Eija Sinervä, Juho Pelto, Hasse Karlsson, Hal S. Stern, Tallie Z. Baram
Psychology Faculty Articles and Research
Background
Early life experiences have persisting influence on brain function throughout life. Maternal signals constitute a primary source of early life experiences, and their quantity and quality during sensitive developmental periods exert enduring effects on cognitive function and emotional and social behaviors. Here we examined if, in addition to established qualitative dimensions of maternal behavior during her interactions with her infant and child, patterns of maternal signals may contribute to the maturation of children's executive functions. We focused primarily on effortful control, a potent predictor of mental health outcomes later in life.
Methods
In two independent prospective cohorts in Turku, …
Getting Change-Space: A Grounded Theory Study Of Automated Ehealth Therapy, Marianne T. S. Holter, Ottar Ness, Ayna Johansen, Håvar Brendryen
Getting Change-Space: A Grounded Theory Study Of Automated Ehealth Therapy, Marianne T. S. Holter, Ottar Ness, Ayna Johansen, Håvar Brendryen
The Qualitative Report
A promising tool for bettering people’s health is eHealth (or “mHealth”) programs: fully automated, web-based health interventions. However, we know surprisingly little about eHealth’s working mechanisms. One possible working mechanism is that program users benefit from a collaborative “relationship”—a “working alliance”—with the program. Although evidence support the existence of a person-to-program alliance it is unclear if and how it influences change. Therefore, we conducted a grounded theory study of how relating to an eHealth program for quitting smoking influenced the participants’ change processes. The ensuing model focuses on how participants got change-space—feeling free from social forcing and able to work …
Case Study: Effects Of Psychosocial Factors On A Geriatric Patient With Guillain Barré Syndrome, Keane Evangelista, Mary Pent Hunter, Jessica Phung, Aum Tejani, Lee Anne H. Robotta
Case Study: Effects Of Psychosocial Factors On A Geriatric Patient With Guillain Barré Syndrome, Keane Evangelista, Mary Pent Hunter, Jessica Phung, Aum Tejani, Lee Anne H. Robotta
San Marcos, Summer 2019
The purpose of this case report is to determine how a change in intrinsic motivation and environmental factors help physical and functional improvements in a 77-year-old male patient with Guillain Barré Syndrome (GBS) in the geriatric population. Interventions to promote this change included patient education about lifestyle choices along with endurance and balance exercises.
Patient psychological state, community access, and general education about interventions/dosing had an effect on the patient's participation in his prescribed HEP. His comorbidities hindered his overall progress over the course of his treatment and should be addressed to improve patient outcomes. Activities that were more salient …
Mouse Performance On A Novel Touchscreen Continuous Performance Task Is Dependent On Signaling In The Prelimbic Cortex, Tyler D. Dexter, Daniel Palmer, Amy C. Reichelt, Anita Taksokhan, Lisa M. Saksida, Tim J. Bussey
Mouse Performance On A Novel Touchscreen Continuous Performance Task Is Dependent On Signaling In The Prelimbic Cortex, Tyler D. Dexter, Daniel Palmer, Amy C. Reichelt, Anita Taksokhan, Lisa M. Saksida, Tim J. Bussey
Western Research Forum
Attention is the cognitive processing that facilitates the ability to target and attend to relevant environmental stimuli, while filtering out irrelevant or distracting stimuli. Control over selective attention is theorized to be dependent on organized neural communication that stems from the medial prefrontal cortex (mPFC). To evaluate selective and sustained attention, mice were trained on the novel touchscreen rodent continuous performance task (rCPT), a task designed to emulate the human CPT. In the rodent version, images are continuously presented on a touchscreen, where mice have been trained to selectively respond to one image type while suppressing responses to all others. …
Pparg Signaling In The Nucleus Accumbens Regulates Mesolimbic Dopamine Activity, Tony Jung, Roger Hudson, Hanna Szkudlarek, Walter Rushlow, Steve Laviolette
Pparg Signaling In The Nucleus Accumbens Regulates Mesolimbic Dopamine Activity, Tony Jung, Roger Hudson, Hanna Szkudlarek, Walter Rushlow, Steve Laviolette
Western Research Forum
Background: The mesolimbic dopamine system consists of dopamine neuron projections from the ventral tegmental area (VTA) to the nucleus accumbens (NAc). The NAc regulates VTA dopamine release through inhibitory GABA projections to the VTA. Hyperactive mesolimbic dopamine signaling is implicated in anxiety. Cannabidiol, a compound found in cannabis, demonstrates promising therapeutic potential for anxiety through the regulation of the mesolimbic dopamine system. Previous studies have revealed that cannabidiol infusions into the NAc decreases mesolimbic dopamine activity - potentially through the inhibitory GABA signaling to the VTA. However, the receptor mechanism in the NAc through which CBD produces its effects is …
The Effects Of Rape Trauma And Ptsd On The Childbirth Process, Helena Kevorkian
The Effects Of Rape Trauma And Ptsd On The Childbirth Process, Helena Kevorkian
Grace Peterson Nursing Research Colloquium
Abstract
Background: Sexual trauma, including rape and childhood sexual abuse, takes a toll on the survivor emotionally and physically. With the invasive procedures, physical exposure and feelings of loss of control related to childbirth, the survivor may become triggered and become retraumatized. Through an integrative literature review, the effects of rape trauma and PTSD on the childbirth process were identified.
Objective: The purpose of this integrative literature review was to determine the effects of rape trauma and PTSD on the childbirth process. Through determining the effects, a greater understanding will be gained on how to best approach a situation with …
An Integration-To-Bound Model Of Decision-Making That Accounts For The Spectral Properties Of Neural Data, Ramón Guevara Erra, Marco Arbotto, Aaron Schurger
An Integration-To-Bound Model Of Decision-Making That Accounts For The Spectral Properties Of Neural Data, Ramón Guevara Erra, Marco Arbotto, Aaron Schurger
Psychology Faculty Articles and Research
Integration-to-bound models are among the most widely used models of perceptual decision-making due to their simplicity and power in accounting for behavioral and neurophysiological data. They involve temporal integration over an input signal (“evidence”) plus Gaussian white noise. However, brain data shows that noise in the brain is long-term correlated, with a spectral density of the form 1/fα (with typically 1 < α < 2), also known as pink noise or ‘1/f’ noise. Surprisingly, the adequacy of the spectral properties of drift-diffusion models to electrophysiological data has received little attention in the literature. Here we propose a model of accumulation of evidence for decision-making that takes into consideration the spectral properties of brain signals. We develop a generalization of the leaky stochastic accumulator model using a Langevin equation whose non-linear noise term allows for varying levels of autocorrelation in the time course of the decision variable. We derive this equation directly from magnetoencephalographic data recorded while subjects performed a spontaneous movement initiation task. We then propose a nonlinear model of accumulation of evidence that accounts for the ‘1/f’ spectral properties of brain signals, and the observed variability in the power spectral properties of brain signals. Furthermore, our model outperforms the standard drift-diffusion model at approximating the empirical waiting time distribution.
Human Learning, Memory, And Student Development, Alan R. Erickson
Human Learning, Memory, And Student Development, Alan R. Erickson
Contemporary Issues in Educational Leadership
My educational interests have largely been informed by my career in the sciences and medicine. My professional education has been both formative and transformative, opening doors to the joy of learning and a realization in the importance of memory. As an educator, clinician, and student, I have been greatly impacted by issues of curricular design, curricular development, learning and memory. My current responsibilities in student affairs also have exposed me to the delicate balance between student development, curricular design, learning and memory. Patton, Renn, Guido, and Quaye (2016) noted the importance of educators being able to use different literature sources …