789 research outputs found
Anchoring Effects in Calorie Estimation
Data and Experiment from the poster presentation: Hermens, F. (2016). Anchoring effects in calorie estimation. EPS meeting Durham, 5 - 6 April 2016, Durham
Shadows influence eye movements
Data from: Hermens, F., & Zdravković, S. (2015). Information extraction from shadowed regions in images: An eye movement study. Vision research, 113, 87-96
Stroop experiments
Files for Hermens, F. & Walker, R. (2012). The site of interference in the saccadic Stroop effect. Vision Research,73, 10-22
A 17th century Italian treatise on miniature painting and its author(s)
No abstract available
A 17th century Italian treatise on miniature painting and its author(s)
No abstract available
Comparing Response Times and Error Rates in a Simultaneous Masking Paradigm
In simultaneous masking, performance on a foveally presented target is impaired by one or more flanking elements. Previous studies have demonstrated strong effects of the grouping of the target and the flankers on the strength of masking (e.g., Malania, Herzog & Westheimer, 2007). These studies have predominantly examined performance by measuring offset discrimination thresholds as a measure of performance, and it is therefore unclear whether other measures of performance provide similar outcomes. A recent study, which examined the role of grouping on error rates and response times in a speeded vernier offset discrimination task, similar to that used by Malania et al. (2007), suggested a possible dissociation between the two measures, with error rates mimicking threshold performance, but response times showing differential results (Panis & Hermens, 2014). We here report the outcomes of three experiments examining this possible dissociation, and demonstrate an overall similar pattern of results for error rates and response times across a broad range of mask layouts. Moreover, the pattern of results in our experiments strongly correlates with threshold performance reported earlier (Malania et al., 2007). Our results suggest that outcomes in a simultaneous masking paradigm do not critically depend on the outcome measure used, and therefore provide evidence for a common underlying mechanism
AUT823925_Supplemental_material – Supplemental material for Disability, functioning, and quality of life among treatment-seeking young autistic adults and its relation to depression, anxiety, and stress
Supplemental material, AUT823925_Supplemental_material for Disability, functioning, and quality of life among treatment-seeking young autistic adults and its relation to depression, anxiety, and stress by Shin Ho Park, Yun Ju C Song, Eleni A Demetriou, Karen L Pepper, Alice Norton, Emma E Thomas, Ian B Hickie, Daniel F Hermens, Nick Glozier and Adam J Guastella in Autism</p
AUT823925_Lay_Abstract – Supplemental material for Disability, functioning, and quality of life among treatment-seeking young autistic adults and its relation to depression, anxiety, and stress
Supplemental material, AUT823925_Lay_Abstract for Disability, functioning, and quality of life among treatment-seeking young autistic adults and its relation to depression, anxiety, and stress by Shin Ho Park, Yun Ju C Song, Eleni A Demetriou, Karen L Pepper, Alice Norton, Emma E Thomas, Ian B Hickie, Daniel F Hermens, Nick Glozier and Adam J Guastella in Autism</p
Eye movements reveal the role of attention in change blindness for shadows
In a change blindness paradigm, participants are presented with two images (alternating or side-by-side) and are asked to detect a change created with digital image manipulation. A recent study has suggested that changes in cast shadows are more difficult to detect than changes in objects (Ehinger, Allen, & Wolfe, 2016). Research has also suggested that when judging faces, observers show reduced attention to cast shadows (Hermens & Zdravković, 2015). A plausible reason for change blindness for shadows is therefore that observers fail to attend the relevant areas in an image. We here test this hypothesis by measuring eye movements while observers freely view the images from Ehinger et al. (2016). To compare change blindness in the same set-up we also asked participants to perform a change detection task where we presented images side-by-side and balanced the number of object and shadow changes. During free viewing, observers paid little attention to the relevant shadows and objects, but significantly more often fixated the relevant shadows than objects. During the change blindness task, changes in shadows were more easily detected than changes in objects. Attention during free viewing of individual images, however, did not predict change detection performance. The results suggest that during free viewing observers do not automatically discard cast shadows, and that change blindness may not be directly related to visual attention during free viewing
Spasticity: clinical perceptions, neurological realities and meaningful measurement (in special issue on spasticity-definitions and measurement)
The aim of this paper is to review briefly our understanding of the phenomenon of spasticity based in current evidence
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