Now showing items 1-20 of 42

    • A halo visual illusion. 

      Rubin, David; Rebson, DJ (Perception, 1977-01)
      A visual illusion consisting of transparent halos extending beyond the boundaries of rotating discs is reported. The effect can be obtained by rotating a variety of black-and-white discs at moderate speeds. It is not due ...
    • A pilot investigation of audiovisual processing and multisensory integration in patients with inherited retinal dystrophies. 

      Iannaccone, Alessandro; Myers, Mark H; Bidelman, Gavin M (BMC ophthalmology, 2017-12-07)
      In this study, we examined audiovisual (AV) processing in normal and visually impaired individuals who exhibit partial loss of vision due to inherited retinal dystrophies (IRDs).Two groups were analyzed for this pilot study: ...
    • A Refined Neuronal Population Measure of Visual Attention. 

      Mayo, Patrick; Cohen, Marlene R; Maunsell, John HR (PloS one, 2015-01)
      Neurophysiological studies of cognitive mechanisms such as visual attention typically ignore trial-by-trial variability and instead report mean differences averaged across many trials. Advances in electrophysiology allow ...
    • Action video game playing is associated with improved visual sensitivity, but not alterations in visual sensory memory. 

      Appelbaum, Lawrence Gregory; Cain, Matthew; Darling, Elise F; Mitroff, Stephen (Atten Percept Psychophys, 2013-08)
      Action video game playing has been experimentally linked to a number of perceptual and cognitive improvements. These benefits are captured through a wide range of psychometric tasks and have led to the proposition that action ...
    • Activation in mesolimbic and visuospatial neural circuits elicited by smoking cues: evidence from functional magnetic resonance imaging. 

      Due, DL; Hall, WG; Huettel, Scott; Rubin, David C (Am J Psychiatry, 2002-06)
      OBJECTIVE: The authors sought to increase understanding of the brain mechanisms involved in cigarette addiction by identifying neural substrates modulated by visual smoking cues in nicotine-deprived smokers. METHOD: Event-related ...
    • Age mediation of frontoparietal activation during visual feature search. 

      Madden, David Joseph; Parks, EL; Davis, Simon Wilton; Diaz, Michele Theresa; Potter, Guy Glenn; Chou, Ying-hui; Chen, Nan-kuei; ... (8 authors) (Neuroimage, 2014-11-15)
      Activation of frontal and parietal brain regions is associated with attentional control during visual search. We used fMRI to characterize age-related differences in frontoparietal activation in a highly efficient feature ...
    • Assessing visual requirements for social context-dependent activation of the songbird song system. 

      Hara, E; Hessler, NA; Jarvis, Erich David; Kubikova, L (Proc Biol Sci, 2009-01-22)
      Social context has been shown to have a profound influence on brain activation in a wide range of vertebrate species. Best studied in songbirds, when males sing undirected song, the level of neural activity and expression ...
    • Behavioural and physiological limits to vision in mammals. 

      Field, Greg; Sampath, Alapakkam P (Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2017-04)
      Human vision is exquisitely sensitive-a dark-adapted observer is capable of reliably detecting the absorption of a few quanta of light. Such sensitivity requires that the sensory receptors of the retina, rod photoreceptors, ...
    • Chaos in percepts? 

      Richards, W; Sommer, Marc A; Wilson, HR (Biol Cybern, 1994)
      Multistability in perceptual tasks has suggested that the mechanisms underlying our percepts might be modeled as nonlinear, deterministic systems that exhibit chaotic behavior. We present evidence supporting this view, obtaining ...
    • Configural specificity of the lateral occipital cortex. 

      Ales, JM; Appelbaum, Lawrence Gregory; Cottereau, Benoit R; Norcia, AM (Neuropsychologia, 2010-09)
      While regions of the lateral occipital cortex (LOC) are known to be selective for objects relative to feature-matched controls, it is not known what set of cues or configurations are used to promote this selectivity. Many ...
    • Cortical Brain Activity Reflecting Attentional Biasing Toward Reward-Predicting Cues Covaries with Economic Decision-Making Performance. 

      Appelbaum, Lawrence Gregory; Huettel, Scott; San Martín, R; Woldorff, Marty G (Cereb Cortex, 2016-01)
      Adaptive choice behavior depends critically on identifying and learning from outcome-predicting cues. We hypothesized that attention may be preferentially directed toward certain outcome-predicting cues. We studied this ...
    • Cross-modal stimulus conflict: the behavioral effects of stimulus input timing in a visual-auditory Stroop task. 

      Appelbaum, Lawrence Gregory; Donohue, Sarah; Park, CJ; Roberts, K; Woldorff, Marty G (PLoS One, 2013)
      Cross-modal processing depends strongly on the compatibility between different sensory inputs, the relative timing of their arrival to brain processing components, and on how attention is allocated. In this behavioral study, ...
    • Drivers from the deep: the contribution of collicular input to thalamocortical processing. 

      Cavanaugh, J; Sommer, Marc A; Wurtz, RH (Prog Brain Res, 2005)
      A traditional view of the thalamus is that it is a relay station which receives sensory input and conveys this information to cortex. This sensory input determines most of the properties of first order thalamic neurons, ...
    • Efficient coding of spatial information in the primate retina. 

      Field, Greg; Doi, Eizaburo; Gauthier, Jeffrey L; Shlens, Jonathon; Sher, Alexander; Greschner, Martin; Machado, Timothy A; ... (14 authors) (The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012-11)
      Sensory neurons have been hypothesized to efficiently encode signals from the natural environment subject to resource constraints. The predictions of this efficient coding hypothesis regarding the spatial filtering properties ...
    • Experimental manipulations of the phenomenology of memory. 

      Burt, CDB; Fifield, SJ; Rubin, David C (Mem Cognit, 2003-09)
      We investigated the effects of visual input at encoding and retrieval on the phenomenology of memory. In Experiment 1, participants took part in events with and without wearing blindfolds, and later were shown a video of ...
    • Frontal eye field sends delay activity related to movement, memory, and vision to the superior colliculus. 

      Sommer, Marc A; Wurtz, RH (J Neurophysiol, 2001-04)
      Many neurons within prefrontal cortex exhibit a tonic discharge between visual stimulation and motor response. This delay activity may contribute to movement, memory, and vision. We studied delay activity sent from the frontal ...
    • Gauging possibilities for action based on friction underfoot. 

      Adolph, Karen E; Dietz, VA; Joh, Amy S; Narayanan, PJ (J Exp Psychol Hum Percept Perform, 2007-10)
      Standing and walking generate information about friction underfoot. Five experiments examined whether walkers use such perceptual information for prospective control of locomotion. In particular, do walkers integrate information ...
    • Graded Neuronal Modulations Related to Visual Spatial Attention. 

      Mayo, Patrick; Maunsell, John HR (The Journal of neuroscience : the official journal of the Society for Neuroscience, 2016-05)
      UNLABELLED:Studies of visual attention in monkeys typically measure neuronal activity when the stimulus event to be detected occurs at a cued location versus when it occurs at an uncued location. But this approach does not ...
    • Identifying corollary discharges for movement in the primate brain. 

      Sommer, Marc A; Wurtz, RH (Prog Brain Res, 2004)
      The brain keeps track of the movements it makes so as to process sensory input accurately and coordinate complex movements gracefully. In this chapter we review the brain's strategies for keeping track of fast, saccadic ...
    • Imagery and retrieval of auditory and visual information: neural correlates of successful and unsuccessful performance. 

      Daselaar, SM; Huijbers, W; Pennartz, CM; Rubin, David C (Neuropsychologia, 2011-06)
      Remembering past events - or episodic retrieval - consists of several components. There is evidence that mental imagery plays an important role in retrieval and that the brain regions supporting imagery overlap with those ...