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Basic and Clinical Neuroscience، جلد ۵، شماره ۳، صفحات ۲۰۵-۲۱۱
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| عنوان فارسی |
Evaluation of Phase Locking and Cross Correlation Methods for Estimating the Time Lag between Brain Sites: A Simulation Approach |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Evaluation of Phase Locking and Cross Correlation Methods for Estimating the Time Lag between Brain Sites: A Simulation Approach |
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| چکیده انگلیسی مقاله |
Introduction: Direction and latency of electrical connectivity between different sites of brain explains brain neural functionality. We compared efficiency of cross correlation and phase locking methods in time lag estimation which are based on local field potential (LFP) and LFPspike signals, respectively. Methods: Signals recorded from MT area of a macaque’s brain was used in a simulation approach. The first signal was real brain activity and the second was identical to the first one, but with two kinds of delayed and not delayed forms. Time lag between two signals was estimated by cross correlation and phase locking methods. Results: Both methods estimated the time lags with no errors. Phase locking was not as time efficient as correlation. In addition, phase locking suffered from temporal self bias. Discussion: Correlation was a more efficient method. Phase locking was not considered as a proper method to estimate the time lags between brain sites due to time inefficiency and self bias, the problems which are reported for the first time about this method. |
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| کلیدواژه‌های انگلیسی مقاله |
Phase Lock,Correlation,Lag,Direction,Brain Site. |
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| نویسندگان مقاله |
محمد جواد سلطان زاده | mohammad javad soltanzadeh
neuroscience research laboratory, biomedical engineering department, faculty of electrical engineering, iran university of science and technology iust , tehran, iran.
سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)
محمدرضا دلیری | mohammad reza daliri
mohammad reza daliri
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| نشانی اینترنتی |
http://bcn.iums.ac.ir/browse.php?a_code=A-10-1-208&slc_lang=en&sid=en |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
fa |
| موضوعات مقاله منتشر شده |
Behavioral Neuroscience |
| نوع مقاله منتشر شده |
Original |
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