Expert image analysts show enhanced visual processing in change detection

Curran, Tim; Gibson, Laurie; Horne, James H.; Young, Brent; Bozell, Aloise

doi:10.3758/pbr.16.2.390

Cited by 19 publications

(19 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Classification was initially performed using a standard or general model. This linear model was developed from the responses of multiple participants in a prior study (Curran et al, 2009; Touryan et al, 2010) examining the P300 object classification signal (Thorpe et al, 1996). Individualized or custom models were also developed for each participant using only that participants data.…”

Section: Methodsmentioning

confidence: 99%

Real-Time Measurement of Face Recognition in Rapid Serial Visual Presentation

Touryan¹,

Gibson²,

Horne³

et al. 2011

Front. Psychology

Self Cite

View full text Add to dashboard Cite

Event-related potentials (ERPs) have been used extensively to study the processes involved in recognition memory. In particular, the early familiarity component of recognition has been linked to the FN400 (mid-frontal negative deflection between 300 and 500 ms), whereas the recollection component has been linked to a later positive deflection over the parietal cortex (500–800 ms). In this study, we measured the ERPs elicited by faces with varying degrees of familiarity. Participants viewed a continuous sequence of faces with either low (novel faces), medium (celebrity faces), or high (faces of friends and family) familiarity while performing a separate face-identification task. We found that the level of familiarity was significantly correlated with the magnitude of both the early and late recognition components. Additionally, by using a single-trial classification technique, applied to the entire evoked response, we were able to distinguish between familiar and unfamiliar faces with a high degree of accuracy. The classification of high versus low familiarly resulted in areas under the curve of up to 0.99 for some participants. Interestingly, our classifier model (a linear discriminant function) was developed using a completely separate object categorization task on a different population of participants.

show abstract

Section: Methodsmentioning

confidence: 99%

Real-Time Measurement of Face Recognition in Rapid Serial Visual Presentation

Touryan¹,

Gibson²,

Horne³

et al. 2011

Front. Psychology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Examples include studies of change detection in traffic situations (Galpin et al, 2009;Koustanaï, Van Elslande, & Bastien, 2012), video camera surveillance (Scott-Brown & Cronin, 2007), studies on the role of expertise in perception (Curran, Gibson, Horne, Young, & Bozell, 2009;Jones, Jones, Smith, & Copley, 2003;Werner & Thies, 2000), or studies on the interplay between bottom-up and top-down processes in scene perception (Stirk & Underwood, 2007). In sum, we believe that the benefits of using natural images for change detection may outweigh the time necessary to create them.…”

Section: Discussionmentioning

confidence: 94%

The scene and the unseen: Manipulating photographs for experiments on change blindness and scene memory

2013

View full text Add to dashboard Cite

The change blindness paradigm, in which participants often fail to notice substantial changes in a scene, is a popular tool for studying scene perception, visual memory, and the link between awareness and attention. Some of the most striking and popular examples of change blindness have been demonstrated with digital photographs of natural scenes; in most studies, however, much simpler displays, such as abstract stimuli or "free-floating" objects, are typically used. Although simple displays have undeniable advantages, natural scenes remain a very useful and attractive stimulus for change blindness research. To assist researchers interested in using natural-scene stimuli in change blindness experiments, we provide here a step-by-step tutorial on how to produce changes in natural-scene images with a freely available image-processing tool (GIMP). We explain how changes in a scene can be made by deleting objects or relocating them within the scene or by changing the color of an object, in just a few simple steps. We also explain how the physical properties of such changes can be analyzed using GIMP and MATLAB (a high-level scientific programming tool). Finally, we present an experiment confirming that scenes manipulated according to our guidelines are effective in inducing change blindness and demonstrating the relationship between change blindness and the physical properties of the change and inter-individual differences in performance measures. We expect that this tutorial will be useful for researchers interested in studying the mechanisms of change blindness, attention, or visual memory using natural scenes.

show abstract

“…Finally, the interaction between the high-level cognitive and low-level sensorial processing levels has been demonstrated in the recent studies. For example, domain specific-expertise not only directs attention towards relevant objects or features in the scene but it can also introduce fundamental changes in early visual processing influencing on change detection abilities in sensorial processing [10] [11]. These results of fundamental and applied perceptual research underline essential aspects of human perception to be considered when studying Quality of Experience.…”

Section: Introductionmentioning

confidence: 96%

Cognitive styles and visual quality

Jumisko-Pyykkö

Strohmeier

2013

SPIE Proceedings

View full text Add to dashboard Cite

Assessors are the main measurement instruments in subjective quality evaluation studies. Although the perceptual abilities and constrains are influenced by multiple demographic and psychographic factors, they are typically disregarded as a part of quality assessment. Cognitive styles refer to individual's consistent approaches to organize and represent information. Goal of this study is to explore the impact of cognitive styles on visual quality requirements. The data collection is conducted using the Style of Processing (SOP) questionnaire in three video quality experiments with a total of 72 participants. All participants were categorized into four groups according to sensorial preferences in information processing (visual, verbal, bimodal -high processing, and bimodal -low processing). The experiments were conducted in controlled circumstances when varying depth in video quality with several content types on the mobile device. The results show variation in quality requirements between these groups. Finally, these results also indicate that sensorial processing styles are essential to explore for sample characterization in quality evaluation experiments and for exploring more user-aware quality adjustments in future services and products.

show abstract

Expert image analysts show enhanced visual processing in change detection

Cited by 19 publications

References 20 publications

Real-Time Measurement of Face Recognition in Rapid Serial Visual Presentation

Real-Time Measurement of Face Recognition in Rapid Serial Visual Presentation

The scene and the unseen: Manipulating photographs for experiments on change blindness and scene memory

Cognitive styles and visual quality

Contact Info

Product

Resources

About