Attention reduces perceived brightness contrast. Tsal, Y., Shalev, L., Zakay, D., Lubow, & E, R. The Quarterly journal of experimental psychology. A, Human experimental psychology, 47(4):865--893, November, 1994. PMID: 7809400![Attention reduces perceived brightness contrast [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex The effects of attention on brightness perception was investigated in four experiments. In the first three, subjects estimated the brightness of a briefly presented small grey square by selecting a number that corresponded to one of four possible squares varying on a lightness-darkness dimension. In the last experiment, subjects matched the brightness of two peripheral squares, one attended and one unattended. When the stimulus appeared on a white background (Experiments 1, 2, and 4a) it was judged as brighter when attention was directed to its location than when attention was diverted to another location. When the stimulus appeared on a dark background (Experiments 3 and 4b), the opposite pattern of results was obtained: the attended stimulus was judged as darker than the unattended one. These results show that attention reduces the perceived contrast between the stimulus and its background, suggesting that attention enables subjects to provide a more veridical judgement of stimulus brightness by limiting processing resources to the square itself, at the expense of the surrounding background. As attention produced a directional brightness effect rather than just an improvement in report accuracy, the results can be attributed to early perceptual processing effects, hence providing support for early selection views of attention.
@article{ tsal_attention_1994,
title = {Attention reduces perceived brightness contrast},
volume = {47},
issn = {0272-4987},
url = {http://www.ncbi.nlm.nih.gov/pubmed/7809400},
abstract = {The effects of attention on brightness perception was investigated in four experiments. In the first three, subjects estimated the brightness of a briefly presented small grey square by selecting a number that corresponded to one of four possible squares varying on a lightness-darkness dimension. In the last experiment, subjects matched the brightness of two peripheral squares, one attended and one unattended. When the stimulus appeared on a white background (Experiments 1, 2, and 4a) it was judged as brighter when attention was directed to its location than when attention was diverted to another location. When the stimulus appeared on a dark background (Experiments 3 and 4b), the opposite pattern of results was obtained: the attended stimulus was judged as darker than the unattended one. These results show that attention reduces the perceived contrast between the stimulus and its background, suggesting that attention enables subjects to provide a more veridical judgement of stimulus brightness by limiting processing resources to the square itself, at the expense of the surrounding background. As attention produced a directional brightness effect rather than just an improvement in report accuracy, the results can be attributed to early perceptual processing effects, hence providing support for early selection views of attention.},
number = {4},
urldate = {2012-09-12},
journal = {The Quarterly journal of experimental psychology. A, Human experimental psychology},
author = {Tsal, Y and Shalev, L and Zakay, D and Lubow, R E},
month = {November},
year = {1994},
note = {{PMID:} 7809400},
keywords = {Adult, Attention, Contrast Sensitivity, Humans, Perception, Photic Stimulation},
pages = {865--893}
}
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A, Human experimental psychology</i>,\n\n47(4):865--893.\n\nNovember 1994.\n\n\nPMID: 7809400.\n\n<br class=\"bibbase_paper_content\"/>\n\n<span class=\"bibbase_paper_content\">\n \n \n <!-- <i -->\n <!-- onclick=\"javascript:log_download('tsal-shalev-zakay-lubow-e-attentionreducesperceivedbrightnesscontrast-1994', 'http://www.ncbi.nlm.nih.gov/pubmed/7809400')\">DEBUG -->\n <!-- </i> -->\n\n <a href=\"http://www.ncbi.nlm.nih.gov/pubmed/7809400\"\n onclick=\"javascript:log_download('tsal-shalev-zakay-lubow-e-attentionreducesperceivedbrightnesscontrast-1994', 'http://www.ncbi.nlm.nih.gov/pubmed/7809400')\">\n <img src=\"http://bibbase.org/img/filetypes/blank.png\"\n\t alt=\"Attention reduces perceived brightness contrast [.gov/pubmed/7809400]\" \n\t class=\"bibbase_icon\"\n\t style=\"width: 24px; height: 24px; border: 0px; vertical-align: text-top\" ><span class=\"bibbase_icon_text\">Paper</span></a> \n \n \n \n <a href=\"javascript:showBib('tsal_attention_1994')\"\n class=\"bibbase link\">\n <!-- <img src=\"http://bibbase.org/img/filetypes/bib.png\" -->\n\t<!-- alt=\"Attention reduces perceived brightness contrast [bib]\" -->\n\t<!-- class=\"bibbase_icon\" -->\n\t<!-- style=\"width: 24px; height: 24px; border: 0px; vertical-align: text-top\"><span class=\"bibbase_icon_text\">Bibtex</span> -->\n BibTeX\n <i class=\"fa fa-caret-down\"></i></a>\n \n \n \n <a class=\"bibbase_abstract_link bibbase link\"\n href=\"javascript:showAbstract('tsal_attention_1994')\">\n Abstract\n <i class=\"fa fa-caret-down\"></i></a>\n \n \n \n\n \n \n \n</span>\n\n<div class=\"well well-small bibbase\" id=\"bib_tsal_attention_1994\"\n style=\"display:none\">\n <pre>@article{ tsal_attention_1994,\n title = {Attention reduces perceived brightness contrast},\n volume = {47},\n issn = {0272-4987},\n url = {http://www.ncbi.nlm.nih.gov/pubmed/7809400},\n abstract = {The effects of attention on brightness perception was investigated in four experiments. In the first three, subjects estimated the brightness of a briefly presented small grey square by selecting a number that corresponded to one of four possible squares varying on a lightness-darkness dimension. In the last experiment, subjects matched the brightness of two peripheral squares, one attended and one unattended. When the stimulus appeared on a white background (Experiments 1, 2, and 4a) it was judged as brighter when attention was directed to its location than when attention was diverted to another location. When the stimulus appeared on a dark background (Experiments 3 and 4b), the opposite pattern of results was obtained: the attended stimulus was judged as darker than the unattended one. These results show that attention reduces the perceived contrast between the stimulus and its background, suggesting that attention enables subjects to provide a more veridical judgement of stimulus brightness by limiting processing resources to the square itself, at the expense of the surrounding background. As attention produced a directional brightness effect rather than just an improvement in report accuracy, the results can be attributed to early perceptual processing effects, hence providing support for early selection views of attention.},\n number = {4},\n urldate = {2012-09-12},\n journal = {The Quarterly journal of experimental psychology. A, Human experimental psychology},\n author = {Tsal, Y and Shalev, L and Zakay, D and Lubow, R E},\n month = {November},\n year = {1994},\n note = {{PMID:} 7809400},\n keywords = {Adult, Attention, Contrast Sensitivity, Humans, Perception, Photic Stimulation},\n pages = {865--893}\n}</pre>\n</div>\n\n\n<div class=\"well well-small bibbase\" id=\"abstract_tsal_attention_1994\"\n style=\"display:none\">\n The effects of attention on brightness perception was investigated in four experiments. In the first three, subjects estimated the brightness of a briefly presented small grey square by selecting a number that corresponded to one of four possible squares varying on a lightness-darkness dimension. In the last experiment, subjects matched the brightness of two peripheral squares, one attended and one unattended. When the stimulus appeared on a white background (Experiments 1, 2, and 4a) it was judged as brighter when attention was directed to its location than when attention was diverted to another location. When the stimulus appeared on a dark background (Experiments 3 and 4b), the opposite pattern of results was obtained: the attended stimulus was judged as darker than the unattended one. These results show that attention reduces the perceived contrast between the stimulus and its background, suggesting that attention enables subjects to provide a more veridical judgement of stimulus brightness by limiting processing resources to the square itself, at the expense of the surrounding background. As attention produced a directional brightness effect rather than just an improvement in report accuracy, the results can be attributed to early perceptual processing effects, hence providing support for early selection views of attention.\n</div>\n\n\n</div>\n","downloads":0,"bibbaseid":"tsal-shalev-zakay-lubow-e-attentionreducesperceivedbrightnesscontrast-1994","urls":{"Paper":"http://www.ncbi.nlm.nih.gov/pubmed/7809400"},"role":"author","year":"1994","volume":"47","urldate":"2012-09-12","url":"http://www.ncbi.nlm.nih.gov/pubmed/7809400","type":"article","title":"Attention reduces perceived brightness contrast","pages":"865--893","number":"4","note":"PMID: 7809400","month":"November","keywords":"Adult, Attention, Contrast Sensitivity, Humans, Perception, Photic Stimulation","key":"tsal_attention_1994","journal":"The Quarterly journal of experimental psychology. A, Human experimental psychology","issn":"0272-4987","id":"tsal_attention_1994","bibtype":"article","bibtex":"@article{ tsal_attention_1994,\n title = {Attention reduces perceived brightness contrast},\n volume = {47},\n issn = {0272-4987},\n url = {http://www.ncbi.nlm.nih.gov/pubmed/7809400},\n abstract = {The effects of attention on brightness perception was investigated in four experiments. In the first three, subjects estimated the brightness of a briefly presented small grey square by selecting a number that corresponded to one of four possible squares varying on a lightness-darkness dimension. In the last experiment, subjects matched the brightness of two peripheral squares, one attended and one unattended. When the stimulus appeared on a white background (Experiments 1, 2, and 4a) it was judged as brighter when attention was directed to its location than when attention was diverted to another location. When the stimulus appeared on a dark background (Experiments 3 and 4b), the opposite pattern of results was obtained: the attended stimulus was judged as darker than the unattended one. These results show that attention reduces the perceived contrast between the stimulus and its background, suggesting that attention enables subjects to provide a more veridical judgement of stimulus brightness by limiting processing resources to the square itself, at the expense of the surrounding background. As attention produced a directional brightness effect rather than just an improvement in report accuracy, the results can be attributed to early perceptual processing effects, hence providing support for early selection views of attention.},\n number = {4},\n urldate = {2012-09-12},\n journal = {The Quarterly journal of experimental psychology. A, Human experimental psychology},\n author = {Tsal, Y and Shalev, L and Zakay, D and Lubow, R E},\n month = {November},\n year = {1994},\n note = {{PMID:} 7809400},\n keywords = {Adult, Attention, Contrast Sensitivity, Humans, Perception, Photic Stimulation},\n pages = {865--893}\n}","author_short":["Tsal, Y.","Shalev, L.","Zakay, D.","Lubow","E, R."],"author":["Tsal, Y","Shalev, L","Zakay, D","Lubow","E, R"],"abstract":"The effects of attention on brightness perception was investigated in four experiments. In the first three, subjects estimated the brightness of a briefly presented small grey square by selecting a number that corresponded to one of four possible squares varying on a lightness-darkness dimension. In the last experiment, subjects matched the brightness of two peripheral squares, one attended and one unattended. When the stimulus appeared on a white background (Experiments 1, 2, and 4a) it was judged as brighter when attention was directed to its location than when attention was diverted to another location. When the stimulus appeared on a dark background (Experiments 3 and 4b), the opposite pattern of results was obtained: the attended stimulus was judged as darker than the unattended one. These results show that attention reduces the perceived contrast between the stimulus and its background, suggesting that attention enables subjects to provide a more veridical judgement of stimulus brightness by limiting processing resources to the square itself, at the expense of the surrounding background. As attention produced a directional brightness effect rather than just an improvement in report accuracy, the results can be attributed to early perceptual processing effects, hence providing support for early selection views of attention."},"bibtype":"article","biburl":"http://bibbase.org/zotero/nbusch","downloads":0,"search_terms":["attention","reduces","perceived","brightness","contrast","tsal","shalev","zakay","lubow","e"],"title":"Attention reduces perceived brightness contrast","year":1994,"dataSources":["9Wz8i3YBFkeJte2aR"]}