- Cognitive Abilities and Testing
- Neural and Behavioral Psychology Studies
- Motor Control and Adaptation
- Child and Animal Learning Development
- Cognitive and developmental aspects of mathematical skills
- Human-Automation Interaction and Safety
- Visual and Cognitive Learning Processes
- Reading and Literacy Development
- Decision-Making and Behavioral Economics
- Genetic Associations and Epidemiology
- Neural dynamics and brain function
- Visual perception and processing mechanisms
- Intelligent Tutoring Systems and Adaptive Learning
- Psychometric Methodologies and Testing
- Neuroscience and Music Perception
- Complex Systems and Decision Making
- Schizophrenia research and treatment
- Action Observation and Synchronization
- Ultrasound in Clinical Applications
- Dementia and Cognitive Impairment Research
- COVID-19 diagnosis using AI
- Phonocardiography and Auscultation Techniques
- Traumatic Brain Injury and Neurovascular Disturbances
- Behavioral and Psychological Studies
- Education, Achievement, and Giftedness
Georgia Institute of Technology
2025
Drexel University
2023-2024
University of Florida
2020
Griffith University
2019
University of Edinburgh
2018
Defence Science and Technology Group
2003-2012
Australian Government
2011
QIMR Berghofer Medical Research Institute
2001-2004
The University of Queensland
1995-2002
Kentuckiana Pulmonary Associates
1992
A model of cognitive slowing is proposed with the following assumption: Information lost during processing, processing occurs in discrete steps step duration inversely related to amount information currently available, and effect aging increase proportion per step. This correctly predicts a positively accelerated relation between latencies older younger adults provides unified account effects task complexity, practice, speed-accuracy tradeoffs, fluctuations individual performance. Strong...
Abstract Amultidisciplinary collaborative study examining cognition in a large sample of twins is outlined. A common experimental protocol and design used The Netherlands, Australia Japan to measure cognitive ability using traditional IQ measures (i.e., psychometric IQ), processing speed (e.g., reaction time [RT] inspection [IT]), working memory spatial span, delayed response [DR] performance). main aim investigate the genetic covariation among these phenotypes order use correlated...
In this study a structural equation model of predictors age differences in cognitive performance late adulthood was developed. Biological markers aging (vision, hearing, vibration sense, forced expiratory volume, and grip strength) were used as indicators latent variable called BioAge. A sample 180 community-dwelling women aged 60 to 90 years assessed. Results showed that BioAge explained all the age-related variance test performance. Physical health physical activity had direct effects on...
The efficiency of eye‐movements while tracking sequential lights was compared for 15 dyslexic children and controls, matched on age non‐verbal intelligence. Contrary to Pavlidis (1981), no significant differences were found between the two groups measures efficiency. A hierarchical cluster analysis did not demonstrate unique patterns errors dyslexics, with exception a single female dyslexic.
Amultidisciplinary collaborative study examining cognition in a large sample of twins is outlined. A common experimental protocol and design used The Netherlands, Australia Japan to measure cognitive ability using traditional IQ measures (i.e., psychometric IQ), processing speed (e.g., reaction time [RT] inspection [IT]), working memory spatial span, delayed response [DR] performance). main aim investigate the genetic covariation among these phenotypes order use correlated biological markers...
The efficacy of psychological treatments emphasising a self-management approach to chronic pain has been demonstrated by substantial empirical research. Nevertheless, high drop-out and relapse rates low or unsuccessful engagement in rehabilitation programs have prompted the suggestion that people vary their readiness adopt pain. Pain Stages Change Questionnaire (PSOCQ) was developed assess patient's Preliminary evidence supported PSOCQ's psychometric properties. current study designed...
The decision time/movement time (DT/MT) measures which are obtained when using reaction-time apparatus incorporating a home key being used to investigate wide range of group differences. It is usually assumed that the from stimulus onset release good measure central processing speed. argued it not always case since possible strategy on or just after detecting rather than fully identifying stimulus, thus giving an invalidly short DT and long MT. Two experiments described show subjects do use...
The relationship between corresponding latencies of old and young adults early in practice are examined across a range tasks (choice reaction time, memory scanning classification) within-subjects design. These relations well described by linear functions the case cognitive processing times (CTs) on all tasks, movement (MTs) from choice viewing (VTs) scanning. This linearity holds not only for comparisons medians but also other points within-subject distribution (WSD), specifically 10th,...