A5065134747- Mental Health Research Topics
- Eating Disorders and Behaviors
- Behavioral Health and Interventions
- Advanced Statistical Modeling Techniques
- Child and Adolescent Psychosocial and Emotional Development
- Evolutionary Psychology and Human Behavior
- Complex Systems and Time Series Analysis
- Menstrual Health and Disorders
- Action Observation and Synchronization
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Psychological Well-being and Life Satisfaction
- Psychometric Methodologies and Testing
- Attachment and Relationship Dynamics
- Complex Network Analysis Techniques
- Functional Brain Connectivity Studies
- Sensory Analysis and Statistical Methods
- Heart Rate Variability and Autonomic Control
- Complex Systems and Decision Making
- Obesity, Physical Activity, Diet
- Face Recognition and Perception
- Cognitive Abilities and Testing
- Face recognition and analysis
- Time Series Analysis and Forecasting
- Statistical Methods and Applications
- Chaos control and synchronization
University of Virginia
2015-2024
Bethany College - West Virginia
2019
University of Richmond
2015
University of Notre Dame
1997-2014
Max Planck Society
2009-2011
Max Planck Institute for Human Development
2009-2011
Infants master crawling and walking in an environment filled with varied unfamiliar surfaces. At the same time, infants' bodies skills continually change. The changing demands of everyday locomotion require infants to adapt properties terrain their own physical abilities. This Monograph examines how acquire adaptive a novel task--going up down slopes. were tested longitudinally from first week until several weeks after they began walking. Everyday locomotor experience played central role...
Cross-correlation and most other longitudinal analyses assume that the association between 2 variables is stationary. Thus, a sample of occasions measurement expected to be representative regardless time onset or number in sample. The authors propose method analyze when assumption stationarity may not warranted. results estimates both strength peak lag occurred for range starting values elapsed from beginning an experiment.
The authors present in this study a damped oscillator model that provides direct mathematical basis for testing the notion of emotion as self-regulatory thermostat. Parameters from reflect individual differences emotional lability and ability to regulate emotion. discuss concepts such intensity, rate change, acceleration context emotion, they illustrate strengths approach comparison with spectral analysis growth curve models. utility modeling is illustrated using daily ratings 179 college...
Abstract A simple method for fitting differential equations to multi-wave panel data performs remarkably well in recovering parameters from underlying continuous models with as few three waves of data. Two techniques intrinsic dynamics intraindividual variability are examined by testing these techniques' behavior the generated two simulated systems equations. Each set contains 100 "subjects" each whom measured at only points time. local linear approximation first and second derivatives...
Studies suggest that within-person changes in estrogen and progesterone predict binge eating across the menstrual cycle. However, samples have been extremely small (maximum N = 9), analyses not examined interactive effects of hormones are critical for food intake animals. The aims current study were to examine ovarian hormone interactions prediction within-subject emotional largest sample women date (N 196). Participants provided daily ratings saliva measurement 45 consecutive days. Results...
Resilience is often considered both a trait and process. The current study proposes new way to conceptualize resilience-as-process based on dynamical systems modeling, which allows researchers capture the process of stress management in real time. Coupled damped linear oscillator models succinctly describe daily negative affect terms developmental forces (e.g., velocity, acceleration). Models were fit 56-day response data from 42 aging adults (M(age) = 78.8 years; SD(age) 6.6 years) observe...
One of the promises experience sampling methodology (ESM) is that a statistical analysis an individual's emotions, cognitions and behaviors in everyday-life could be used to identify relevant treatment targets. A requisite for clinical implementation outcomes such person-specific time-series analyses are not wholly contingent on researcher performing them. To evaluate this, we crowdsourced one individual patient's ESM data 12 prominent research teams, asking them what symptom(s) they would...
Negative urgency (i.e., the tendency to engage in rash action response negative affect) has emerged as a critical personality trait contributing individual differences binge eating. However, studies investigating extent which genetic and/or environmental influences underlie effects of on eating are lacking. Moreover, it remains unclear whether urgency-binge associations simply result well-established role affect development/maintenance The current study addresses these gaps by examining...
Synchrony between interacting systems is an important area of nonlinear dynamics in physical systems. Recently psychological researchers from multiple areas psychology have become interested nonverbal synchrony (i.e., coordinated motion two individuals engaged dyadic information exchange such as communication or dance) a predictor and outcome processes. An step studying systematically validly differentiating synchronous nonsynchronous However, many current methods testing quantifying will...
Individuals with eating disorders (EDs) have increased rates of major depressive disorder (MDD) and anxiety disorders. Yet, few studies investigated EDs their symptoms in individuals presenting MDD/anxiety Identifying potential disordered people is important because even subclinical associated reduced quality life, undiagnosed pathology may hinder treatment progress for both comorbid EDs.We compared (anorexia nervosa, bulimia binge-eating disorder, other specified feeding disorders) 130...
A dynamical systems approach was used to model the intraindividual variability in emotional well-being following conjugal loss. Well-being a sample of 19 recently bereaved older adult widows measured every day for 3 months. The pattern hypothesized be an oscillating process that damps across time (i.e., large swings followed by gradual damping). Results indicated there significant patterned adjustment can modeled linear oscillator (R2 =.77), addition overall positive trend. Applying analyses...
This article addresses three issues germane to experimental design and statistical analysis of intraindividual variability such as the articles contained within this special section. First, time scale measurement a process can have profound effects on outcome analyses resulting series. Measurement in poses problems experiments: measurements must be appropriate for process. Second, deterministic stochastic models should fit at individual level only second differences parameters modeled....
This study examined the influence of sex, social dominance, and context on motion-tracked head movements during dyadic conversations. Windowed cross-correlation analyses found high peak correlation between conversants' over short ( approximately 2-s) intervals a degree nonstationarity. Nonstationarity in was to be positively related number men conversation. Surrogate data analysis offsetting time series by large lag unable reject null hypothesis that observed correlations were unrelated...
Changes in ovarian hormones predict changes emotional eating across the menstrual cycle. However, prior studies have not examined whether nature of associations varies dysregulated severity. The current study determined strength and/or hormone/dysregulated differ based on presence clinically diagnosed binge episodes (BEs). Participants included 28 women with BEs and 417 without who provided salivary hormone samples, ratings eating, BE frequency for 45 days. Results revealed stronger between...
ABSTRACT The coordination of physiological processes between parents and infants is thought to support behaviors critical for infant adaptation, but we know little about parent‐child coregulation during the preschool years. present study examined whether time‐varying changes in parent child respiratory sinus arrhythmia (RSA) exhibited (across‐person dynamics) accounting individual differences RSA, there were these parasympathetic by children's externalizing problems. Mother‐child dyads ( N =...
Emotional eating (EE) reflects an urge to eat in response emotional rather than physical cues and is a risk factor for the development of binge eating. EE has been conceptualized as attempt regulate negative affect (NA), posited maintenance However, no study examined whether urges affect. Further, studies have longitudinal associations between positive (PA).We within-subject community-based sample female twins (mean age = 17.8 years). Participants (N 239) completed ratings 45 consecutive...
The accurate identification of the content and number latent factors underlying multivariate data is an important endeavor in many areas Psychology related fields. Recently, a new dimensionality assessment technique based on network psychometrics was proposed (Exploratory Graph Analysis, EGA), but measure to check fit structure estimated via EGA still lacking. Although traditional factor-analytic measures are widespread, recent research has identified limitations for their effectiveness...
Abstract Cooperation is pivotal for society to flourish. To foster cooperation, humans express and read intentions via explicit signals subtle reflections of arousal visible in the face. Evidence accumulating that synchronize these nonverbal expressions physiological mechanisms underlying them, potentially influencing cooperation. The current study designed verify this putative linkage between synchrony end, 152 participants played Prisoner’s Dilemma game a dyadic interaction setting,...
The variability pattern of emotional well-being in recent widows across a 98-day period beginning the first month post-loss has previously been modeled by dynamical systems and shown to be an oscillating process that damps time. goal present study was examine how variables comprise social support network predict characteristics these shifts 28 widows. In study, seeking led steeper overall trend, whereas perceived control for shallower trend. When examining intraindividual variability,...