Spatial attention alters visual appearance.

It is well established that attention improves performance on many visual tasks. However, for more than 100 years, psychologists, philosophers, and neurophysiologists have debated its phenomenology-whether attention actually changes one's subjective experience. Here, we show that it is possible to objectively and quantitatively investigate the effects of attention on subjective experience. First, we review evidence showing that attention alters the appearance of many static and dynamic basic visual dimensions, which mediate changes in appearance of higher-level perceptual aspects. Then, we summarize current views on how attention alters appearance. These findings have implications for our understanding of perception and attention, illustrating that attention affects not only how we perform in visual tasks, but actually alters our experience of the visual world.

[1]  M. Carrasco,et al.  Emotion and anxiety potentiate the way attention alters visual appearance , 2018, Scientific Reports.

[2]  M. Carrasco,et al.  On the flexibility of sustained attention and its effects on a texture segmentation task , 2008, Vision Research.

[3]  Stefan Treue,et al.  Perceptual enhancement of contrast by attention , 2004, Trends in Cognitive Sciences.

[4]  M. Carrasco,et al.  Covert attention affects the psychometric function of contrast sensitivity , 2002, Vision Research.

[5]  Marisa Carrasco,et al.  Apparent contrast differs across the vertical meridian: visual and attentional factors. , 2008, Journal of vision.

[6]  Ned Block,et al.  ATTENTION AND MENTAL PAINT , 2010 .

[7]  N. Srinivasan,et al.  Exogenous attention intensifies perceived emotion expressions , 2017, Neuroscience of consciousness.

[8]  Michael S. Landy,et al.  Differential effects of exogenous and endogenous attention on second-order texture contrast sensitivity , 2012 .

[9]  Marisa Carrasco,et al.  How Attention Affects Spatial Resolution Attention Is a Selective Process , 2022 .

[10]  Marisa Carrasco,et al.  Differential effects of exogenous and endogenous attention on second-order texture contrast sensitivity. , 2012, Journal of vision.

[11]  MARISA CARRASCO,et al.  Cortical Magnification Neutralizes the Eccentricity Effect in Visual Search , 1997, Vision Research.

[12]  M. Carrasco,et al.  Attention Alters the Appearance of Spatial Frequency and Gap Size , 2005, Psychological science.

[13]  Marisa Carrasco,et al.  Covert attention effects on spatial resolution. , 2009, Progress in brain research.

[14]  Nicholas B. Turk-Browne,et al.  The attentional repulsion effect in perception and action , 2003, Experimental Brain Research.

[15]  B. Dosher,et al.  External noise distinguishes attention mechanisms , 1998, Vision Research.

[16]  M. Carrasco,et al.  Transient attention does increase perceived contrast of suprathreshold stimuli: A reply to Prinzmetal, Long, and Leonhardt (2008) , 2008, Perception & psychophysics.

[17]  M. Carrasco,et al.  Isoeccentric locations are not equivalent: The extent of the vertical meridian asymmetry , 2012, Vision Research.

[18]  M. Carrasco,et al.  Color vision in ADHD: Part 2 - Does Attention influence Color Perception? , 2014, Behavioral and Brain Functions.

[19]  Shena Lu,et al.  Attentional Effect on Contrast Appearance: From Enhancement to Attenuation , 2017, Journal of experimental psychology. Human perception and performance.

[20]  Dario L Ringach,et al.  Enhanced Spatial Resolution During Locomotion and Heightened Attention in Mouse Primary Visual Cortex , 2016, The Journal of Neuroscience.

[21]  Viola S. Störmer,et al.  Cross-modal cueing of attention alters appearance and early cortical processing of visual stimuli , 2009, Proceedings of the National Academy of Sciences.

[22]  William Prinzmetal,et al.  Phenomenology of attention: I. Color, location, orientation, and spatial frequency. , 1998 .

[23]  D. Heeger,et al.  On spatial attention and its field size on the repulsion effect , 2018, Journal of vision.

[24]  M. Carrasco,et al.  Sustained and transient covert attention enhance the signal via different contrast response functions , 2006, Vision Research.

[25]  K. Schneider,et al.  Attention biases decisions but does not alter appearance. , 2008, Journal of vision.

[26]  Hakwan Lau,et al.  A decisional account of subjective inflation of visual perception at the periphery , 2014, Attention, Perception, & Psychophysics.

[27]  Marisa Carrasco,et al.  Cross-modal attention enhances perceived contrast , 2009, Proceedings of the National Academy of Sciences.

[28]  Serge O Dumoulin,et al.  Predicting bias in perceived position using attention field models. , 2016, Journal of vision.

[29]  M. Turatto,et al.  Attention makes moving objects be perceived to move faster , 2007, Vision Research.

[30]  P. Thompson,et al.  Contrast Affects Flicker and Speed Perception Differently , 1997, Vision Research.

[31]  Yun-Xian Ho,et al.  How Attention Enhances Spatial Resolution: Evidence from Selective Adaptation to Spatial Frequency P343 Cv Jp Dj , 2022 .

[32]  M. Carrasco.  Visual attention: The past 25 years , 2011, Vision Research.

[33]  S. S. Stevens,et al.  Ratio scales and category scales for a dozen perceptual continua. , 1957, Journal of experimental psychology.

[34]  M. Carrasco,et al.  Attention alters appearance , 2004, Nature Neuroscience.

[35]  M. Carrasco,et al.  Exogenous attention and color perception: Performance and appearance of saturation and hue , 2006, Vision Research.

[36]  P. Tse.  Voluntary attention modulates the brightness of overlapping transparent surfaces , 2005, Vision Research.

[37]  Jared Abrams,et al.  Voluntary attention increases perceived spatial frequency , 2010, Attention, perception & psychophysics.

[38]  William Prinzmetal,et al.  The Phenomenology of Attention , 1997, Consciousness and Cognition.

[39]  Marisa Carrasco,et al.  Attention Modifies Spatial Resolution According to Task Demands , 2017, Psychological science.

[40]  Eero P. Simoncelli,et al.  Metamers of the ventral stream , 2011, Nature Neuroscience.

[41]  D. Heeger,et al.  The Normalization Model of Attention , 2009, Neuron.

[42]  R. Kimchi.  Perceptual organization and visual attention. , 2009, Progress in brain research.

[43]  D. Heeger,et al.  Attention enhances contrast appearance via increased input baseline of neural responses. , 2014, Journal of vision.

[44]  Marisa Carrasco,et al.  Saccade Preparation Reshapes Sensory Tuning , 2016, Current Biology.

[45]  M. Carrasco,et al.  Characterizing visual performance fields: effects of transient covert attention, spatial frequency, eccentricity, task and set size. , 2001, Spatial vision.

[46]  M. Carrasco,et al.  PSYCHOLOGICAL SCIENCE Research Article Voluntary Attention Enhances Contrast Appearance , 2022 .

[47]  B. Dosher,et al.  Spatial attention: different mechanisms for central and peripheral temporal precues? , 2000, Journal of experimental psychology. Human perception and performance.

[48]  Stefan Treue,et al.  Attention changes perceived size of moving visual patterns. , 2007, Journal of vision.

[49]  W. James,et al.  The Principles of Psychology. , 1983 .

[50]  Marisa Carrasco,et al.  Endogenous attention alters the appearance of spatial frequency , 2010 .

[51]  P. Lennie.  The Cost of Cortical Computation , 2003, Current Biology.

[52]  Changes in the size of attentional focus modulate the apparent object’s size , 2018, Vision Research.

[53]  R. Kimchi,et al.  Attention enhances apparent perceptual organization , 2018, Psychonomic bulletin & review.

[54]  Marisa Carrasco,et al.  Independent Effects of Adaptation and Attention on Perceived Speed , 2022 .

[55]  M. Carrasco,et al.  Transient covert attention and the perceived rate of flicker. , 2006, Journal of vision.

[56]  M. Carrasco,et al.  Attention alters the appearance of motion coherence , 2006, Psychonomic bulletin & review.

[57]  Antoine Barbot,et al.  How Attention Enhances Spatial Resolution: Preferential Gain Enhancement of High Spatial Frequency Neurons , 2016, The Journal of Neuroscience.

[58]  T. Moore,et al.  Neural Mechanisms of Selective Visual Attention. , 2017, Annual review of psychology.

[59]  M. Posner,et al.  Orienting of Attention* , 1980, The Quarterly journal of experimental psychology.

[60]  Francesca C. Fortenbaugh,et al.  Rapid changes in visual-spatial attention distort object shape , 2011, Psychonomic bulletin & review.

[61]  M. Carrasco.  Covert attention increases contrast sensitivity: Psychophysical, neurophysiological and neuroimaging studies. , 2006, Progress in brain research.

[62]  M. Turatto,et al.  Are the effects of attention on speed judgments genuinely perceptual? , 2010, Attention, perception & psychophysics.

[63]  Steven J Luck,et al.  Understanding awareness: one step closer , 2004, Nature Neuroscience.

[64]  William Prinzmetal,et al.  Involuntary Attention and Brightness Contrast , 2022 .

[65]  Marisa Carrasco,et al.  Attention improves or impairs visual performance by enhancing spatial resolution , 1998, Nature.

[66]  H. Helmholtz.  Handbuch der physiologischen Optik , 2015 .

[67]  Marisa Carrasco,et al.  Attentional enhancement of spatial resolution: linking behavioural and neurophysiological evidence , 2013, Nature Reviews Neuroscience.

[68]  J. Reynolds,et al.  Attentional modulation of visual processing. , 2004, Annual review of neuroscience.

[69]  Equality judgments cannot distinguish between attention effects on appearance and criterion: a reply to Schneider (2011). , 2011, Journal of vision.

[70]  J. C. Johnston,et al.  Involuntary attentional capture by abrupt onsets , 1992, Perception & psychophysics.

[71]  M. Carrasco,et al.  A population-coding model of attention’s influence on contrast response: Estimating neural effects from psychophysical data , 2009, Vision Research.

[72]  K. Schneider.  Does attention alter appearance? , 2006, Perception & psychophysics.

[73]  P. Cavanagh,et al.  Focused attention distorts visual space: an attentional repulsion effect. , 1997, Journal of experimental psychology. Human perception and performance.

[74]  P. Tse,et al.  Illusory rebound motion and the motion continuity heuristic , 2005, Vision Research.

[75]  M. Carrasco,et al.  The locus of attentional effects in texture segmentation , 2000, Nature Neuroscience.

[76]  D. Heeger,et al.  When size matters: attention affects performance by contrast or response gain , 2010, Nature Neuroscience.

[77]  Marisa Carrasco,et al.  Cue contrast modulates the effects of exogenous attention on appearance , 2009, Vision Research.

[78]  Steven C. Dakin,et al.  Crowding Changes Appearance , 2010, Current Biology.

[79]  Y. Tsal,et al.  Attention Reduces Perceived Brightness Contrast , 1994, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[80]  M. Carrasco,et al.  Evaluating comparative and equality judgments in contrast perception: attention alters appearance. , 2010, Journal of vision.

[81]  M. Carrasco,et al.  Transient covert attention does alter appearance: A reply to Schneider (2006) , 2007, Perception & psychophysics.

[82]  H. Lau,et al.  Subjective inflation: phenomenology's get-rich-quick scheme. , 2019, Current opinion in psychology.

[83]  K. Nakayama,et al.  Sustained and transient components of focal visual attention , 1989, Vision Research.

[84]  Elaine J. Anderson,et al.  The Neural Correlates of Crowding-Induced Changes in Appearance , 2011, Current Biology.

[85]  M. Carrasco,et al.  Spatial covert attention increases contrast sensitivity across the CSF: support for signal enhancement , 2000, Vision Research.

[86]  Marisa Carrasco,et al.  Attention alters spatial resolution by modulating second-order processing , 2018, Journal of vision.

[87]  Viola S. Störmer,et al.  Attention Alters Perceived Attractiveness , 2016, Psychological science.

[88]  David Whitney,et al.  Voluntary attention modulates motion-induced mislocalization. , 2011, Journal of vision.

[89]  Marisa Carrasco,et al.  Perceptual asymmetries are preserved in short-term memory tasks , 2009, Attention, perception & psychophysics.

[90]  John H. R. Maunsell,et al.  Neuronal Mechanisms of Visual Attention. , 2015, Annual review of vision science.

[91]  M. Carrasco,et al.  Perceptual consequences of visual performance fields: the case of the line motion illusion. , 2009, Journal of vision.