کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
142063 162971 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Looking for cognition in the structure within the noise
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب شناختی
پیش نمایش صفحه اول مقاله
Looking for cognition in the structure within the noise
چکیده انگلیسی

Neural activity in the mammalian CNS is determined by both observable processes, such as sensory stimuli or motor output, and covert, internal cognitive processes that cannot be directly observed. We propose methods to identify these cognitive processes by examining the covert structure within the apparent ‘noise’ in spike trains. Contemporary analyses of neural codes include encoding (tuning curves derived from spike trains and behavioral, sensory or motor variables), decoding (reconstructing behavioral, sensory or motor variables from spike trains and hypothesized tuning curves) and generative models (predicting the spike trains from hypothesized encoding models and decoded variables). We review examples of each of these processes in hippocampal activity, and propose a general methodology to examine cognitive processes via the identification of dynamic changes in covert variables.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 13, Issue 2, February 2009, Pages 55–64
نویسندگان
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