• Publications
  • Influence
Heart rate variability: origins, methods, and interpretive caveats.
Components of heart rate variability have attracted considerable attention in psychology and medicine and have become important dependent measures in psychophysiology and behavioral medicine.Expand
Horse-race model simulations of the stop-signal procedure.
A set of evidence-based guidelines for using the stop-signal paradigm, derived from a series of simulations, indicate that, under most conditions, the latency, but not variability, of response inhibition can be reliably estimated. Expand
Characterization of Children's Decision Making: Sensitivity to Punishment Frequency, Not Task Complexity
7–12-year-old children—like VMPFC patients—appear myopic about the future except when the potential for future punishment is high, which could not be explained by differential sensitivity to task complexity, hypersensitivity to reward, or failure to switch response set after receiving punishment. Expand
Developmental Changes in Real Life Decision Making: Performance on a Gambling Task Previously Shown to Depend on the Ventromedial Prefrontal Cortex
Young children share with ventromedial prefrontal patients the failure to anticipate on future outcomes, which could not be explained by developmental changes in working memory capacity or inductive reasoning. Expand
Heart rate and skin conductance analysis of antecendents and consequences of decision making.
The current study examined the pattern of heart rate and skin conductance changes preceding risky choices and following outcome for bad, moderate, and good performers on an analogue of the Iowa gambling task to suggest that decision-making impairments in bad performers arise from a weak somatic response generated by secondary inducers (i.e., somatic markers). Expand
Do you like me? Neural correlates of social evaluation and developmental trajectories
Results showed that activation in the ventral mPFC and striatum to social feedback was context-dependent; there was increased activation when participants had positive expectations about social evaluation, and increased activation following social acceptance feedback. Expand
Switching between spatial stimulus-response mappings: a developmental study of cognitive flexibility.
The anticipated age differences in performance errors were most pronounced for perseverative errors between 8-9 years and 11-12 years, but for distraction errors adult levels were not reached until 13-15 years, interpreted to support the notion that set switching and set maintenance follow distinct developmental trajectories. Expand
Effectiveness of a computerised working memory training in adolescents with mild to borderline intellectual disabilities.
This study provides the first demonstration that WM can be effectively trained in adolescents with mild to borderline intellectual disabilities and shows a significant increase in visuo-spatial WM capacity. Expand
Sources of interference from irrelevant information: a developmental study.
The primary source of the developmental decrease in interference from irrelevant information was found to be in the rate at which the output of perceptual analysis is coupled to the preparation and execution of a motor response, rather than in perceptual filtering or in response preparation. Expand
Sensitivity to interference and response contingencies in attention-deficit/hyperactivity disorder.
Attention deficit children appear deficient in approach tendencies in the presence of imminent reward, rather than unresponsive to punishment or negative feedback, as well as under the threat of punishment. Expand