Origin, structure, and role of background EEG activity. Part 2. Analytic phase
نویسندگان
چکیده
منابع مشابه
Origin, structure, and role of background EEG activity. Part 2. Analytic phase.
OBJECTIVE To explain spontaneous EEG through measurements of spatiotemporal patterns of phase among beta-gamma oscillations. METHODS High-density 8 x 8 intracranial arrays were fixed over sensory cortices of rabbits. EEGs were spatially low pass filtered, temporally bandpass filtered and segmented in overlapping windows stepped at 2 ms. Phase was measured with the cosine as the temporal basis...
متن کاملOrigin, structure, and role of background EEG activity. Part 4: Neural frame simulation.
OBJECTIVE To develop a method for simulating background EEG based on the premise that the self-organized activity from synaptic interaction among populations of neurons creates sustained fluctuations that can be modeled with the filtered output of a random number generator. METHODS The logarithm of the amplitude of activity was weighted in accordance with 1/f, the log frequency in both tempor...
متن کاملOrigin, structure, and role of background EEG activity. Part 3. Neural frame classification.
OBJECTIVE To show that cortical responses to conditioned stimuli (CS) include intermittently induced spatial patterns of amplitude modulation (AM) of beta-gamma oscillation called frames. METHODS EEGs were recorded from 8x8 high-density arrays fixed on primary sensory cortices of rabbits trained to discriminate CS with reinforcement (CS+) from those without (CS-). EEG frames were located with...
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Objective: To develop a method for simulating background EEG based on the premise that the activity from synaptic excitation among populations of neurons can be modeled with the filtered output of a random number generator. Methods: The logarithm of the amplitude of activity was weighted in accordance with 1/f, the log frequency in both temporal (PSDT) and spatial (PSDX) spectra. The activity w...
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in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
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ژورنال
عنوان ژورنال: Clinical Neurophysiology
سال: 2004
ISSN: 1388-2457
DOI: 10.1016/j.clinph.2004.02.028