نتایج جستجو برای: 8 hz and alpha 8
تعداد نتایج: 16953717 فیلتر نتایج به سال:
We search for a first-order phase transition (PT) gravitational wave (GW) signal from Advanced LIGO and Virgo's first three observing runs. Due to the large theoretical uncertainties, four GW energy spectral shapes bubble sound collisions widely adopted in literature are investigated, separately. Our results indicate that there is no evidence existence of such signals, therefore we give upper l...
Abstract Background Williams syndrome (WS) is neurodevelopmental disorder characterised by executive deficits of attention and inhibitory processing. The current study examined the neural mechanisms during resting states in adults with WS order to investigate how this subserves associated syndrome. Method Adopting electroencephalography (EEG) methodology, cortical electrical activity was record...
The effect of electrical field stimulation (1, 2, 5, 10 Hz for a total of 480 pulses at 15-minute intervals) on the release of 3H-norepinephrine from the superfused portal vein of spontaneously hypertensive rats (SHR) or Wistar-Kyoto rats (WKY) of various ages was studied. The ages of the animals were (in weeks) 5-6 (prehypertensive), 8-10 (young hypertensives), 16-18 (older hypertensives), and...
Creativity, the ability to produce innovative ideas, is a key higher-order cognitive function that is poorly understood. At the level of macroscopic cortical network dynamics, recent electroencephalography (EEG) data suggests that cortical oscillations in the alpha frequency band (8-12 Hz) are correlated with creative thinking. However, whether alpha oscillations play a functional role in creat...
We studied the EEG and Rorschach test (RT) of nineteen AIDS patients and eight normal people in the same age group. Eight patients presented slow alpha rhythms (8 to 9 Hz); three, not-slow alpha rhythms (> 9 to 13 Hz); and eight, beta rhythms in background activity. Paroxystic activity, characterized by diffuse theta or delta waves, was present in eleven patients. We observed Oberholzer syndrom...
Simultaneous resting state functional magnetic resonance imaging (rsfMRI)-resting state electroencephalography (rsEEG) studies in healthy adults showed robust positive associations of signal power in the alpha band with BOLD signal in the thalamus, and more heterogeneous associations in cortical default mode network (DMN) regions. Negative associations were found in occipital regions. In Alzhei...
The study aimed at mapping (i) the distributed alpha (8–13 Hz) electroencephalography (EEG) sources specific for mild Alzheimer’s disease (AD) compared with vascular dementia (VaD) in normal, elderly people (Nold) and (ii) the distributed alpha EEG sources sensitive to mild AD at different stages of severity. Resting EEG (10–20 electrode montage) was recorded from 48 mild AD, 20 VaD and 38 Nold...
This paper presents a review about the brain, biological neuron, brainwave and electroencephalograph or EEG. Human Brain produces four bands of frequency such as delta, alpha, beta and theta. Every frequency bands have different range delta (0.23 Hz), theta (38 Hz), alpha (8-12 Hz) and beta (12-30 Hz) can be used for analyzing brain activities. Additionally, the brain is also divided into two h...
This paper investigates the hypothesis that the coordination difficulties of DCD children are associated with an increased coherence in the cortical motor regions, which persists with age. Forty-eight children participated in the study (24 DCD and 24 Controls). Their ages ranged from 8 to 13 years, divided into three groups (8-9, 10-11, and 12-13 years old). Children were required to perform fi...
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