Now showing items 55843-55862 of 57338

    • Visual Attention Measures Predict Pedestrian Detection in Central Field Loss: A Pilot Study 

      Alberti, Concetta F.; Horowitz, Todd; Bronstad, P. Matthew; Bowers, Alex R. (Public Library of Science, 2014)
      Purpose The ability of visually impaired people to deploy attention effectively to maximize use of their residual vision in dynamic situations is fundamental to safe mobility. We conducted a pilot study to evaluate whether ...
    • Visual Awareness Is Limited by the Representational Architecture of the Visual System 

      Cohen, Michael A; Nakayama, Ken; Konkle, Talia A; Stantić, Mirta; Alvarez, George Angelo (MIT Press - Journals, 2015)
      Visual perception and awareness have strict limitations. We suggest that one source of these limitations is the representational architecture of the visual system. Under this view, the extent to which items activate the ...
    • A visual circuit uses complementary mechanisms to support transient and sustained pupil constriction 

      Keenan, William Thomas; Rupp, Alan C; Ross, Rachel A; Somasundaram, Preethi; Hiriyanna, Suja; Wu, Zhijian; Badea, Tudor C; Robinson, Phyllis R; Lowell, Bradford B; Hattar, Samer S (eLife Sciences Publications, Ltd, 2016)
      Rapid and stable control of pupil size in response to light is critical for vision, but the neural coding mechanisms remain unclear. Here, we investigated the neural basis of pupil control by monitoring pupil size across ...
    • Visual Event-Related Brain Potentials in 4-Month-Old Infants at Risk for Neurodevelopmental Impairments 

      deRegnier, Raye-Ann O.; Georgieff, Michael K.; Nelson, Charles A. (Wiley, 1997)
      The recording of event-related potentials (ERPs) is an electrophysiologic technique that has been used to evaluate the functional maturation of neural pathways responsible for recognition memory systems in infants and ...
    • Visual evoked potentials in children prenatally exposed to methylmercury 

      Yorifuji, Takashi; Murata, Katsuyuki; Bjerve, Kristian S.; Choi, Anna Lai; Weihe, Pal; Grandjean, Philippe (Elsevier BV, 2013)
      Prenatal exposure to methylmercury can cause both neurobehavioral deficits and neurophysiological changes. However, evidence of neurotoxic effects within the visual nervous system is inconsistent, possibly due to incomplete ...
    • The Visual Experience of Causation 

      Siegel, Susanna (Blackwell Publishing, 2009)
    • Visual Grouping in Human Parietal Cortex 

      Xu, Yaoda; Chun, Marvin M. (National Academy of Sciences, 2007)
      To efficiently extract visual information from complex visual scenes to guide behavior and thought, visual input needs to be organized into discrete units that can be selectively attended and processed. One important such ...
    • Visual Journey of Motherhood: The Effects of Art Therapy Intervention for New Mothers Experiencing Increased Stress and Negative Affect 

      Kim, Eunkyung (2020-03-02)
      This study examined whether an art therapy intervention for first-time mothers with babies under the age of one would be effective in lowering their levels of anxiety, depression and stress as measured by the State Trait ...
    • Visual Long-Term Memory Has a Massive Storage Capacity for Object Details 

      Brady, Timothy F.; Konkle, Talia; Alvarez, George; Oliva, Aude (Proceedings of the National Academy of Sciences, 2008-09-11)
      One of the major lessons of memory research has been that human memory is fallible, imprecise, and subject to interference. Thus, although observers can remember thousands of images, it is widely assumed that these memories ...
    • Visual Long-Term Memory Has the Same Limit on Fidelity as Visual Working Memory 

      Brady, Timothy Francis; Konkle, Talia A; Gill, Jonathan; Oliva, Aude; Alvarez, George Angelo (SAGE Publications, 2013-05-20)
      Visual long-term memory can store thousands of objects with surprising visual detail, but just how detailed are these representations, and how can one quantify this fidelity? Using the property of color as a case study, ...
    • Visual Mental Imagery Activates Topographically Organized Visual Cortex: PET Investigations 

      Kosslyn, Stephen Michael; Alpert, Nathaniel Moritz; Thompson, William L.; Maljkovic, Vera; Weise, Steven B.; Chabris, Christopher F; Hamilton, Sania E.; Rauch, Scott Laurence; Buonanno, Ferdinando Stelio (Massachusetts Institute of Technology Press, 1993)
      Cerebral blood flow was measured using positron emission tomography (PET) in three experiments while subjects performed mental imagery or analogous perceptual tasks. In Experiment 1, the subjects either visualized letters ...
    • Visual Mental Imagery and Visual Perception: Structural Equivalence Revealed by Scanning Processes 

      Borst, Gregoire; Kosslyn, Stephen (Psychonomic Society, 2008)
      The research reported in the present article investigates whether information is represented the same way in both visual mental imagery and the early phases of visual perception. In Experiment 1, the same participants ...
    • Visual object individuation occurs over object wholes, parts, and even holes 

      Porter, Katharine B.; Mazza, Veronica; Garofalo, Annie; Caramazza, Alfonso (Springer (part of Springer Nature), 2016)
      Segmentation of the world into meaningful units has typically been described as object individuation, emphasizing the spatially disconnected quality that comes as a result of objecthood. This segmentation can occur rapidly, ...
    • Visual Pathway Study Using In Vivo Diffusion Tensor Imaging Tractography to Complement Classic Anatomy 

      Wu, Wentao; Rigolo, Laura; O'Donnell, Lauren Jean; Norton, Isaiah; Shriver, Sargent; Golby, Alexandra Jacqueline (Oxford University Press (OUP), 2012)
      BACKGROUND: Knowledge of the individual course of the optic radiations (ORs) is important to avoid postoperative visual deficits. Cadaveric studies of the visual pathways are limited because it has not been possible to ...
    • Visual Perception and Working Memory in Schizotypal Personality Disorder 

      Farmer, Carrie M.; O'Donnell, Brian F.; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; McCarley, Robert William; Shenton, Martha Elizabeth (American Psychiatric Publishing, 2000)
      Objective: Patients affected by schizophrenia show deficits in both visual perception and working memory. The authors tested early-stage vision and working memory in subjects with schizotypal personality disorder, which ...
    • Visual Poetry after Modernism: Elizaveta Mnatsakanova 

      Sandler, Stephanie (JSTOR, 2008)
    • Visual Representation in the Wild: How Rhesus Monkeys Parse Objects 

      Munakata, Yuko; Santos, Laurie R.; Spelke, Elizabeth S.; Hauser, Marc David; O'Reilly, Randall C. (Massachusetts Institute of Technology Press, 2001)
      Visual object representation was studied in free-ranging rhesus monkeys. To facilitate comparison with humans, and to provide a new tool for neurophysiologists, we used a looking time procedure originally developed for ...
    • Visual Search for Arbitrary Objects in Real Scenes 

      Wolfe, Jeremy; Alvarez, George; Sherman, Ashley M.; Rosenholtz, Ruth; Kuzmova, Yoana I.; kuzmova, yoana (Springer Science and Business Media LLC, 2011-06-14)
      How efficient is visual search in real scenes? In searches for targets among arrays of randomly placed distractors, efficiency is often indexed by the slope of the reaction time (RT) × Set Size function. However, it may ...
    • Visual Search for Feature and Conjunction Targets with an Attention Deficit 

      Arguin, Martin; Joanette, Yves; Cavanagh, Patrick (Massachusetts Institute of Technology Press, 1993)
      Brain-damaged subjects who had previously been identified as suffering from a visual attention deficit for contralesional stimulation were tested on a series of visual search tasks. The experiments examined the hypothesis ...
    • Visual search for object categories is predicted by the representational architecture of high-level visual cortex 

      Cohen, Michael Sharpe; Alvarez, George Angelo; Nakayama, Ken; Konkle, Talia A (American Physiological Society, 2016)
      Visual search is a ubiquitous visual behavior, and efficient search is essential for survival. Different cognitive models have explained the speed and accuracy of search based either on the dynamics of attention or on ...