Covert attention increases contrast sensitivity: Psychophysical, neurophysiological and neuroimaging studies

Covert attention increases contrast sensitivity: Psychophysical, neurophysiological and neuroimaging studies. Carrasco, M. Progress in brain research, 154:33--70, 2006. PMID: 17010702

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This chapter focuses on the effect of covert spatial attention on contrast sensitivity, a basic visual dimension where the best mechanistic understanding of attention has been achieved. I discuss how models of contrast sensitivity, as well as the confluence of psychophysical, single-unit recording, and neuroimaging studies, suggest that attention increases contrast sensitivity via contrast gain, an effect akin to a change in the physical contrast stimulus. I suggest possible research directions and ways to strengthen the interaction among different levels of analysis to further our understanding of visual attention.

@article{ carrasco_covert_2006,
  title = {Covert attention increases contrast sensitivity: Psychophysical, neurophysiological and neuroimaging studies},
  volume = {154},
  issn = {0079-6123},
  shorttitle = {Covert attention increases contrast sensitivity},
  url = {http://www.ncbi.nlm.nih.gov/pubmed/17010702},
  doi = {10.1016/S0079-6123(06)54003-8},
  abstract = {This chapter focuses on the effect of covert spatial attention on contrast sensitivity, a basic visual dimension where the best mechanistic understanding of attention has been achieved. I discuss how models of contrast sensitivity, as well as the confluence of psychophysical, single-unit recording, and neuroimaging studies, suggest that attention increases contrast sensitivity via contrast gain, an effect akin to a change in the physical contrast stimulus. I suggest possible research directions and ways to strengthen the interaction among different levels of analysis to further our understanding of visual attention.},
  urldate = {2012-09-20},
  journal = {Progress in brain research},
  author = {Carrasco, Marisa},
  year = {2006},
  note = {{PMID:} 17010702},
  keywords = {Action Potentials, Animals, Attention, Brain Mapping, Contrast Sensitivity, Diagnostic Imaging, Humans, Magnetic Resonance Imaging, Neurons, Psychophysics, Space Perception, Time Factors, Visual Cortex, Visual Fields},
  pages = {33--70}
}

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I discuss how models of contrast sensitivity, as well as the confluence of psychophysical, single-unit recording, and neuroimaging studies, suggest that attention increases contrast sensitivity via contrast gain, an effect akin to a change in the physical contrast stimulus. I suggest possible research directions and ways to strengthen the interaction among different levels of analysis to further our understanding of visual attention.},\n urldate = {2012-09-20},\n journal = {Progress in brain research},\n author = {Carrasco, Marisa},\n year = {2006},\n note = {{PMID:} 17010702},\n keywords = {Action Potentials, Animals, Attention, Brain Mapping, Contrast Sensitivity, Diagnostic Imaging, Humans, Magnetic Resonance Imaging, Neurons, Psychophysics, Space Perception, Time Factors, Visual Cortex, Visual Fields},\n pages = {33--70}\n}</pre>\n</div>\n\n\n<div class=\"well well-small bibbase\" id=\"abstract_carrasco_covert_2006\"\n style=\"display:none\">\n This chapter focuses on the effect of covert spatial attention on contrast sensitivity, a basic visual dimension where the best mechanistic understanding of attention has been achieved. I discuss how models of contrast sensitivity, as well as the confluence of psychophysical, single-unit recording, and neuroimaging studies, suggest that attention increases contrast sensitivity via contrast gain, an effect akin to a change in the physical contrast stimulus. I suggest possible research directions and ways to strengthen the interaction among different levels of analysis to further our understanding of visual attention.\n</div>\n\n\n</div>\n","downloads":0,"bibbaseid":"carrasco-covertattentionincreasescontrastsensitivitypsychophysicalneurophysiologicalandneuroimagingstudies-2006","urls":{"Paper":"http://www.ncbi.nlm.nih.gov/pubmed/17010702"},"role":"author","year":"2006","volume":"154","urldate":"2012-09-20","url":"http://www.ncbi.nlm.nih.gov/pubmed/17010702","type":"article","title":"Covert attention increases contrast sensitivity: Psychophysical, neurophysiological and neuroimaging studies","shorttitle":"Covert attention increases contrast sensitivity","pages":"33--70","note":"PMID: 17010702","keywords":"Action Potentials, Animals, Attention, Brain Mapping, Contrast Sensitivity, Diagnostic Imaging, Humans, Magnetic Resonance Imaging, Neurons, Psychophysics, Space Perception, Time Factors, Visual Cortex, Visual Fields","key":"carrasco_covert_2006","journal":"Progress in brain research","issn":"0079-6123","id":"carrasco_covert_2006","doi":"10.1016/S0079-6123(06)54003-8","bibtype":"article","bibtex":"@article{ carrasco_covert_2006,\n title = {Covert attention increases contrast sensitivity: Psychophysical, neurophysiological and neuroimaging studies},\n volume = {154},\n issn = {0079-6123},\n shorttitle = {Covert attention increases contrast sensitivity},\n url = {http://www.ncbi.nlm.nih.gov/pubmed/17010702},\n doi = {10.1016/S0079-6123(06)54003-8},\n abstract = {This chapter focuses on the effect of covert spatial attention on contrast sensitivity, a basic visual dimension where the best mechanistic understanding of attention has been achieved. I discuss how models of contrast sensitivity, as well as the confluence of psychophysical, single-unit recording, and neuroimaging studies, suggest that attention increases contrast sensitivity via contrast gain, an effect akin to a change in the physical contrast stimulus. I suggest possible research directions and ways to strengthen the interaction among different levels of analysis to further our understanding of visual attention.},\n urldate = {2012-09-20},\n journal = {Progress in brain research},\n author = {Carrasco, Marisa},\n year = {2006},\n note = {{PMID:} 17010702},\n keywords = {Action Potentials, Animals, Attention, Brain Mapping, Contrast Sensitivity, Diagnostic Imaging, Humans, Magnetic Resonance Imaging, Neurons, Psychophysics, Space Perception, Time Factors, Visual Cortex, Visual Fields},\n pages = {33--70}\n}","author_short":["Carrasco, M."],"author":["Carrasco, Marisa"],"abstract":"This chapter focuses on the effect of covert spatial attention on contrast sensitivity, a basic visual dimension where the best mechanistic understanding of attention has been achieved. 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