• Publications
  • Influence
Visual search for singleton feature targets across dimensions: Stimulus- and expectancy-driven effects in dimensional weighting.
Findings confirm that top-down dimensional set modulates stimulus-driven dimension processes in the detection of pop-out signals.
SEarch via Recursive Rejection (SERR): A Connectionist Model of Visual Search
Abstract In studies of visual search, a general distinction is often made between the processes involved when detection of a target is unaffected by the number of distractors in the field and those
Usability of a theory of visual attention (TVA) for parameter-based measurement of attention I: Evidence from normal subjects
In a sample of 35 young healthy subjects, the usability of whole and partial report of briefly displayed letter arrays as a diagnostic tool for the assessment of attentional functions was investigated and the clinical relevance of the TVA parameters was demonstrated.
The redundant-signals paradigm and preattentive visual processing.
Evidence is found for the notion of a saliency map, into which feature contrast signals are pooled, and especially the dimension weighting account receives further support: Instead of a priming mechanism that could increase weights for several dimensions independently, evidence favors a weighting mechanism which effectively limits the total weight available for allocation to the various dimensions through competitive interactions.
Lesioning a connectionist model of visual search: selective effects on distractor grouping.
Simulations of a connectionist model of visual search demonstrate that search processes can be disrupted by adding internal noise to search functions, that there can be selective effects on grouping processes, and that these selective effects can be associated with different types of lesion to different stages in the model.
The effect of selective spatial attention on peripheral discrimination thresholds
Experiments were conducted to investigate the role of attention in peripheral detection and discrimination. Advance spatial cues informed subjects about likely target positions; the task required to
DissociableNetworksControlConflictduringPerception andResponseSelection:ATranscranialMagnetic StimulationStudy
Current models of conflict processing propose that cognitive control resolves conflict in the flanker task by enhancing