Daniel C Krawczyk

Daniel C Krawczyk
University of Texas at Dallas | UTD · School of Behavioral and Brain Sciences

Doctor of Philosophy

About

114
Publications
16,860
Reads
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3,222
Citations
Introduction
Daniel Krawczyk is professor of Behavioral and Brain Sciences and holds the Debbie and Jim Francis Chair in Behavioral and Brain Sciences at The University of Texas at Dallas. He is currently the Deputy Director at the UT Dallas Center for BrainHealth®. He authored the book Reasoning: The Neuroscience of How We Think in 2017, a comprehensive guide to research on human reasoning. His research focuses on understanding reasoning and decision making via methods including behavioral studies and brain
Additional affiliations
September 2006 - present
University of Texas Southwestern Medical Center
Position
  • Professor (Associate)
September 2003 - June 2006
University of California, Berkeley
Position
  • PostDoc Position
Education
September 1998 - June 2003
University of California, Los Angeles
Field of study
  • Psychology - Cognitive Neuroscience
September 1994 - June 1998

Publications

Publications (114)
Poster
Full-text available
Our study addressed cognitive challenges experienced by individuals with chronic traumatic brain injury (TBI) by focusing on improving a set of cognitive skills relevant to daily life activities using a game-based intervention called Expedition. The Expedition program is a software tool that deliver cognitive skills training across several cognitiv...
Article
The objective of this study was to measure the contribution of the left frontopolar cortex (FPC) to analogical reasoning. Our measure of analogical reasoning derives from performance on the radiation problem, a creative problem‐solving task first used in Gestalt psychology (Duncker, 1945). Success on this task is as low as 10 % without the presenta...
Article
Objective Negative self-concept is characteristic of anorexia nervosa (AN), but the neural processes mediating this component of AN is unknown. These studies investigated how valence and social perspectives impact neural processing in both adults and adolescents with AN. Method In an fMRI task, participants evaluated positive and negative adjectiv...
Article
Aging entails a multifaceted complex of changes in macro- and micro-structural properties of human brain gray matter (GM) and white matter (WM) tissues, as well as in intellectual abilities. To better capture tissue-specific brain aging, we combined volumetric and diffusivity properties to derive subject-specific age scores for each tissue. We comp...
Article
Introduction Research shows that cognitive performance and emotional well-being can be significantly strengthened. A high-performance brain training protocol, Strategic Memory Advanced Reasoning Training (SMART), was developed by cognitive neuroscientists at The University of Texas at Dallas Center for BrainHealth based on 25-plus years of scientif...
Conference Paper
The increasing use of Artificial Intelligence (AI) systems in face recognition and video processing in recent times creates higher stakes for their application in daily life. Increasingly, critical decisions are being made using these AI systems in application domains such as employment, finance, and crime prevention. These applications are done th...
Article
Relational thinking involves comparing abstract relationships between mental representations that vary in complexity; however, this complexity is rarely made explicit during everyday comparisons. This study explored how people naturally navigate relational complexity and interference using a novel relational match-to-sample (RMTS) task with both mi...
Article
Full-text available
We presented a Virtual Reality (VR)-based functional task with three executive functional load levels and examined some aspects of this task using performance data of young healthy adults. We named the task the modified version of kitchen test (MVKT) from the Virtual Reality Functional Capacity Assessment Tool (VRFCAT). A sample of 42 participants...
Poster
Full-text available
Investigations of the neural correlates of reflective judgement and decision making have revealed the importance of the dorsolateral prefrontal cortex (DLPFC) in attentional control and regulating impulsivity. Edgecumbe et al. (2019) determined that bifocal transcranial direct current stimulation (tDCS) of the right DLPFC facilitated performance on...
Poster
Full-text available
Mechanistic theories of the N400 event-related potential—a neural correlate indexing semantic processing in the brain—implicate the roles of prediction, priming, and bottom-up sensory integration in language comprehension; however, mechanisms explaining volitional aspects of semantic meaning construction are not fully understood. To explore this, p...
Poster
Full-text available
The locus coeruleus - norepinephrine system (LC-NE) – a primary dispenser of norepinephrine in the brain – modulates allocation of attention used in executive functioning and reasoning through connection tracts to the prefrontal cortex (PFC); however, the changes of norepinephrine related to decision-making when affected by transcranial direct curr...
Poster
Full-text available
Traumatic brain injuries (TBIs) occur when we receive a harmful blow to the head that results in disruptions to normal brain functioning. TBIs often cause cognitive deficits that include difficulties in concentration (e.g., mental fog), planning, and setting/achieving goals. These cognitive abilities are often classified more broadly as executive f...
Article
Background. Graph-theoretic approaches are increasingly popular for identifying the patterns of disrupted neural systems after traumatic brain injury (TBI). However, the patterns of neuroplasticity in brain organization after cognitive training in TBI are less well understood. Objective. We identified the patterns of training-induced neuroplasticit...
Article
Full-text available
Background: Some individuals who sustain traumatic brain injuries (TBIs) continue to experience significant cognitive impairments chronically (months to years post injury). Many tests of executive function are insensitive to these executive function impairments, as such impairments may only appear during complex daily life conditions. Daily life o...
Article
Cues signaling trust and dominance are crucial for social life. Previous studies on the effects of oxytocin (OT) nasal sprays on trustworthiness evaluations have been inconsistent and its influence on dominance is unknown. Vasopressin (AVP) may also influence social cue perception, but even fewer investigations have evaluated this possibility. We e...
Poster
Full-text available
Analogical reasoning—our ability to abstract relational similarities between situations despite surface-level differences—varies between individuals; however, current analogy tasks are often not difficult enough to capture variability in performance across healthy and clinical populations. To address this challenge, we developed a scene analogy ass...
Poster
Full-text available
Performing relational comparisons is considered among the most intelligent cognitive capacities. Animal studies have demonstrated that chimpanzees and crows are capable of relational reasoning with second-order relationships (e.g., analogies); however, it has been hypothesized that only humans are capable of reasoning with third-order relationships...
Poster
Full-text available
In this study we used high-definition transcranial direct current stimulation (HD-tDCS) to investigate the functional role of the left frontopolar cortex (Brodmann Area 10) in judgment, decision-making, and analogical reasoning. According to one account, the left frontal pole mediate sensitivity to contextual details relevant to behavioral goals (B...
Preprint
Background: Some individuals who sustain traumatic brain injuries (TBIs) continue to experience significant cognitive impairments chronically (months-to-years post-injury). Many tests of executive function are insensitive to these executive function impairments, as such impairments may only appear during complex daily life conditions. Daily life of...
Article
Full-text available
Oxytocin is a neurotransmitter related to both feeding and social behavior; anorexia nervosa is a psychiatric illness defined by reduced food intake, weight loss, and problems in social perceptions. Oxytocin receptor single nucleotide polymorphisms rs2254298 or rs53576 and neural responses to social stimuli were evaluated in adult women with or rec...
Poster
Full-text available
Our aim is to assess a game-based intervention called Expedition that presents ecologically valid measures of cognitive performance and executive function, including task-switching, strategic memory, and attentional control, in the mild to moderate traumatic brain injury (mTBI) population. We seek to determine how well the gameplay intervention may...
Article
Full-text available
Depression is the most frequent comorbid psychiatric condition among individuals with traumatic brain injury (TBI). Yet, little is known about changes in the brain associated with reduced depressive symptoms following rehabilitation for TBI. We identified whether cognitive training alleviates comorbid depressive symptoms in chronic TBI (>6 months p...
Article
Cognitive control is the ability to coordinate thoughts and actions to achieve goals. Cognitive control impairments are one of the most persistent and devastating sequalae of traumatic brain injuries (TBI). There have been efforts to improve cognitive control in individuals with post-acute TBI. Several studies have reported changes in neuropsycholo...
Book
Reasoning: The Neuroscience of How We Think is a comprehensive guide to the core topics related to a thorough understanding of reasoning. It presents the current knowledge of the subject in a unified, complete manner, ranging from animal studies, to applied situations, and is the only book available that presents a sustained focus on the neurobiolo...
Poster
Full-text available
Our ability to integrate increasingly complex relationships underlies human reasoning (Holyoak & Thagard, 1995), relies on the prefrontal cortex (e.g., Christoff et al., 2001; Waltz et al., 1999), and correlates with intelligence (Marshalek, Lohman, & Snow, 1983). Kroger, Holyoak, and Hummel (2004) demonstrated that comparing increasingly complex r...
Article
Multiple sclerosis (MS) involves damage to white matter microstructures. This damage has been related to grey matter function as measured by standard, physiologically-nonspecific neuroimaging indices (i.e., blood-oxygen-level dependent signal [BOLD]). Here, we used calibrated functional magnetic resonance imaging and diffusion tensor imaging to exa...
Article
There has been great interest in characterizing the response of the amygdala to emotional faces, especially in the context of social cognition. Although amygdala activation is most often associated with fearful or angry stimuli, there is considerable evidence that the response of the amygdala to neutral faces is both robust and reliable. This chara...
Article
Full-text available
Clinical investigations of individuals with chronic stage traumatic brain injury (TBI) showing mild-to-moderate levels of residual impairment largely use standardized neuropsychological assessments to measure executive functioning. The Hayling Sentence Completion Test (HSCT) relies upon several executive functions but detects cognitive impairments...
Article
Full-text available
Introduction Prior studies have demonstrated training‐induced changes in the healthy adult brain. Yet, it remains unclear how the injured brain responds to cognitive training months‐to‐years after injury. Methods Sixty individuals with chronic traumatic brain injury (TBI) were randomized into either strategy‐based (N = 31) or knowledge‐based (N =...
Poster
Full-text available
Social neuroscientists frequently use the word “values” to describe the degree of worth a person assigns to social behaviors or outcomes observed in a variety of neuroimaging tasks. Terms such as cooperation, fairness and generosity are often used to describe results of such studies but such interpretation often remains disconnected from the social...
Poster
Full-text available
Poster to be presented at the annual American Congress of Rehabilitation Medicine (ACRM) in Chicago, IL. Presents a partial least squares correlation analysis of the relationships between BOLD response and white matter microstructure in adults with chronic mild-moderate traumatic brain injury (TBI). Note: the currently published abstract in the Arc...
Article
Full-text available
Virtual reality appears to be a promising and motivating platform to safely practice and rehearse social skills for children with Autism Spectrum Disorders (ASD). However, the literature to date is subject to limitations in elucidating the effectiveness of these virtual reality interventions. This study investigated the impact of a Virtual Reality...
Poster
Full-text available
Analogical reasoning—the ability to understand and utilize relational similarities between entities despite surface-level differences—helps individuals solve problems and navigate through novel situations. This ability varies across healthy and clinical populations, yet current analogical reasoning tasks often fail to capture subtle performance var...
Poster
Full-text available
Top-down strategic cognitive intervention results in changes in white matter axial diffusivity in a priori selected ROIs and improvements in assessments of executive functioning.
Article
Full-text available
Objectives: Individuals with chronic traumatic brain injury (TBI) often show detrimental deficits in higher order cognitive functions requiring coordination of multiple brain networks. Although assessing TBI-related deficits in higher order cognition in the context of network dysfunction is promising, few studies have systematically investigated al...
Article
Rumination is posited to encompass both beneficial and deleterious roles in problem solving. Previous work has suggested these dual roles based upon categorical factors derived from reporting on measures of trait rumination. However, the effects of the continuous dimension of trait rumination on general problem solving performance have not yet been...
Article
Full-text available
Depression is one of the most common psychiatric conditions in individuals with chronic traumatic brain injury (TBI). Though depression has detrimental effects in TBI and network dysfunction is a "hallmark" of TBI and depression, there have not been any prior investigations of connectivity-based neuroimaging biomarkers for comorbid depression in TB...
Article
Full-text available
Traumatic brain injury (TBI) is a chronic health condition. The prevalence of TBI, combined with limited advances in protocols to mitigate persistent TBI-related impairments in higher order cognition, present a significant challenge. In this randomised study (n = 60), we compared the benefits of Strategic Memory Advanced Reasoning Training (SMART,...
Article
Full-text available
The use of analogy is an important component of human cognition. The type of analogy we produce and communicate depends heavily on a number of factors, such as the setting, the level of domain expertise present, and the speaker's goal or intent. In this observational study, we recorded economics experts during scientific discussion and examined the...
Article
Full-text available
Relational reasoning ability relies upon by both cognitive and social factors. We compared analogical reasoning performance in healthy controls (HC) to performance in individuals with Autism Spectrum Disorder (ASD), and individuals with schizophrenia (SZ). The experimental task required participants to find correspondences between drawings of scene...
Article
Full-text available
A classic finding in research on human expertise and knowledge is that of enhanced memory for stimuli in a domain of expertise as compared to either stimuli outside that domain, or within-domain stimuli that have been degraded or distorted in some way. However, we do not understand how experts process degradation or distortion of stimuli within the...
Article
Full-text available
Self-evaluation closely dependent upon body shape and weight is one of the defining criteria for bulimia nervosa (BN). We studied 53 adult women, 17 with