Now showing items 1-10 of 10

    • 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 ...
    • Division of labor in frontal eye field neurons during presaccadic remapping of visual receptive fields. 

      Shin, S; Sommer, Marc A (J Neurophysiol, 2012-10)
      Our percept of visual stability across saccadic eye movements may be mediated by presaccadic remapping. Just before a saccade, neurons that remap become visually responsive at a future field (FF), which anticipates the saccade ...
    • Dynamics of visual receptive fields in the macaque frontal eye field. 

      DiTomasso, AR; Mayo, J Patrick; Smith, MA; Sommer, Marc A (J Neurophysiol, 2015-12)
      Neuronal receptive fields (RFs) provide the foundation for understanding systems-level sensory processing. In early visual areas, investigators have mapped RFs in detail using stochastic stimuli and sophisticated analytical ...
    • Neuronal adaptation caused by sequential visual stimulation in the frontal eye field. 

      Mayo, J Patrick; Sommer, Marc A (J Neurophysiol, 2008-10)
      Images on the retina can change drastically in only a few milliseconds. A robust description of visual temporal processing is therefore necessary to understand visual analysis in the real world. To this end, we studied subsecond ...
    • Neuronal correlates of visual time perception at brief timescales. 

      Mayo, J Patrick; Sommer, Marc A (Proc Natl Acad Sci U S A, 2013-01-22)
      Successful interaction with the world depends on accurate perception of the timing of external events. Neurons at early stages of the primate visual system represent time-varying stimuli with high precision. However, it ...
    • Rapid modulation of sensory processing induced by stimulus conflict. 

      Appelbaum, Lawrence Gregory; Boehler, CN; Chen, WD; Smith, DV; Woldorff, Marty G (J Cogn Neurosci, 2011-09)
      Humans are constantly confronted with environmental stimuli that conflict with task goals and can interfere with successful behavior. Prevailing theories propose the existence of cognitive control mechanisms that can suppress ...
    • Spatial and temporal scales of neuronal correlation in visual area V4. 

      Smith, MA; Sommer, Marc A (J Neurosci, 2013-03-20)
      The spiking activity of nearby cortical neurons is correlated on both short and long time scales. Understanding this shared variability in firing patterns is critical for appreciating the representation of sensory stimuli ...
    • Strategic allocation of attention reduces temporally predictable stimulus conflict. 

      Appelbaum, Lawrence Gregory; Boehler, CN; Davis, L; Woldorff, Marty G; Won, R (J Cogn Neurosci, 2012-09)
      Humans are able to continuously monitor environmental situations and adjust their behavioral strategies to optimize performance. Here we investigate the behavioral and brain adjustments that occur when conflicting stimulus ...
    • The steady-state visual evoked potential in vision research: A review. 

      Ales, JM; Appelbaum, Lawrence Gregory; Cottereau, Benoit R; Norcia, AM; Rossion, B (J Vis, 2015)
      Periodic visual stimulation and analysis of the resulting steady-state visual evoked potentials were first introduced over 80 years ago as a means to study visual sensation and perception. From the first single-channel recording ...
    • The time course of segmentation and cue-selectivity in the human visual cortex. 

      Appelbaum, Lawrence Gregory; Ales, JM; Norcia, AM (PLoS One, 2012)
      Texture discontinuities are a fundamental cue by which the visual system segments objects from their background. The neural mechanisms supporting texture-based segmentation are therefore critical to visual perception and ...