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Basic and Clinical Neuroscience، جلد ۱، شماره ۳، صفحات ۲۱-۲۹
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Using P300 to Evaluate the Effect of Object Color Knowledge in Novelty Detection |
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| چکیده انگلیسی مقاله |
A B S T R A C T Introduction: In an oddball experiment, the context in which novel stimuli are presented affects characteristics of novelty P3, i.e. as long as there is a difficult task in which the difference between standard and target stimuli is small, recurrent presentation of a highly discrepant stimulus can lead to P300 highly similar to novelty P3. Effect of stimulus properties on P300 has also been previously examined and it has been shown that it plays a significant role in P300 topography, its amplitude and latency.Here we have examined the effect of surface color of objects of high color-diagnosticity in a visual oddball paradigm. Methods: In two separate conditions, we used pictures of fruits as target and novel stimuli. In condition one, novel stimuli were pictures of fruits in their canonical colors. In the second condition, novel stimuli were the same photo filtered to have a different non-canonical color. P300 was compared among these conditions. Results: Both target P3 and novelty P3 were detected in the two conditions but no significant difference was evident between conditions.Discussion: This result suggests that comparing to shape information color cue does not play a significant role in detecting context novelty. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
محمد امین khoshlessan | mohammad amin khoshlessan
niavaran bldg., niavaran square, tehran, iran, p. o. box 19395-5746, tel 98 21 2229 4035, fax 98 21 2228 0352, email amin@ipm.ir p300 amp;amp; object color knowledge
صدرا ساده | sadra sadeh
medical school, iran university of medical sciences
سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (Iran university of medical sciences)
رضا نیلی پور | reza nilipour
medical school, iran university of medical sciences, department of speech therapy, university of social welfare and rehabilitation sciences
سازمان اصلی تایید شده: دانشگاه علوم بهزیستی و توانبخشی (University of social welfare and rehabilitation sciences)
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| نشانی اینترنتی |
http://bcn.iums.ac.ir/browse.php?a_code=A-10-1-29&slc_lang=en&sid=en |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
Cellular and molecular Neuroscience |
| نوع مقاله منتشر شده |
Original |
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