7 found
  1. To See or Not to See: The Need for Attention to Perceive Changes in Scenes.Ronald A. Rensink, J. Kevin O'Regan & James J. Clark - 1997 - Psychological Science 8:368-373.
    Methods. We employed a "flicker" technique, in which an original and a modified image (each of duration 240 ms) continually alternated, with a blank field (duration 80 ms) between each display. Images were all of real-world scenes. One of three kinds of change (appearance/disappearance, color, or translation) was made to an object or region in each scene. Changes were large and easily seen under normal conditions. Subjects viewed the flicker display, and pressed a key when they noticed the change.
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  2.  92
    Picture Changes During Blinks: Looking Without Seeing and Seeing Without Looking.J. Kevin O'Regan, H. Deubel, James J. Clark & R. Rensink - 2000 - Visual Cognition 7:191-211.
    Observers inspected normal, high quality color displays of everyday visual scenes while their eye movements were recorded. A large display change occurred each time an eye blink occurred. Display changes could either involve "Central Interest" or "Marginal Interest" locations, as determined from descriptions obtained from independent judges in a prior pilot experiment. Visual salience, as determined by luminance, color, and position of the Central and Marginal interest changes were equalized.
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    Change Blindness as a Result of Mudsplashes.Kevin J. O'Regan, Ronald A. Rensink & James J. Clark - 1999 - Nature 398 (6722):34-34.
  4. On Failures to Detect Changes in Scenes Across Brief Interruptions.Ronald A. Rensink, Kevin J. O'Regan & James J. Clark - 2000 - Visual Cognition 7 (1-3):127-145.
    When brief blank fields are placed between alternating displays of an original and a modified scene, a striking failure of perception is induced: the changes become extremely difficult to notice, even when they are large, presented repeatedly, and the observer expects them to occur (Rensink, O'Regan, & Clark, 1997). To determine the mechanisms behind this induced "change blindness", four experiments examine its dependence on initial preview and on the nature of the interruptions used. Results support the proposal that representations at (...)
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    ‘Better Than Nothing’ is Not Good Enough: Challenges to Introducing Evidence-Based Approaches for Traumatized Populations.James J. Clark, Ginny Sprang, Benjamin Freer & Adrienne Whitt-Woosley - 2012 - Journal of Evaluation in Clinical Practice 18 (2):352-359.
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    Ecological Considerations Support Color Physicalism.James J. Clark - 2003 - Behavioral and Brain Sciences 26 (1):24-25.
    We argue that any theory of color physicalism must include consideration of ecological interactions. Ecological and sensorimotor contingencies resulting from relative surface motion and observer motion give rise to measurable effects on the spectrum of light reflecting from surfaces. These contingencies define invariant manifolds in a sensory-spatial space, which is the physical underpinning of all subjective color experiences.
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    Linking Covert and Overt Attention.James J. Clark - 1999 - Behavioral and Brain Sciences 22 (4):676-677.
    Findlay & Walker's target article questions whether covert attention plays any role in normal visual scanning (overt attention). My commentary suggests that there is indeed a very close link between the processes that govern covert and overt attention.
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