نتایج جستجو برای: increase of alpha brain wave amplitude
تعداد نتایج: 21281864 فیلتر نتایج به سال:
ANIMA has as a primary objective to compare three non conventional human computer interfaces that comply with the industrial robot ST Robotics R-17 instructions. This module, Alpha Waves Related Potentials -ARPexplains how brain waves are obtained, processed, analyzed and identified depending on their frequency. This module makes use of the Open EEG Project’s open hardware monitor for brain wav...
When attention is allocated to one visual hemifield, increased alpha power is observed in ipsilateral visual cortex. This has been attributed to synchronization of alpha-band oscillations within cortical regions which reflects inhibitory processing. Recent results, however, indicate that synchronization of alpha oscillations between cortical regions is relevant for transient functional coupling...
Abstract P300 is known as the most prominent component between cognitive components in electrical brain activity. According to done research, when brain encounters an inconsistent stimulation during processing a series of usual stimulation, a P300 component appears in recorded brain signal which could distinguishes from usual ones. Amplitude of P300 decreases after a short during act of auditor...
Event-related desynchronization (ERD) is attenuation in the amplitude of oscillations in specific frequency that occurs in relation to a specific neural activity [1]. The opposite phenomenon, event-related synchronization (ERS), is an increase in the amplitude [2]. A previous MEG study demonstrated that ERD occurs in alpha and beta bands following electrical stimulation of the median nerve or s...
Nicotinic receptors play an important role in modulating the activity of parasympathetic cardiac vagal neurons in the medulla. Previous work has shown nicotine acts via at least three mechanisms to excite brain stem premotor cardiac vagal neurons. Nicotine evokes a direct increase in holding current and facilitates both the frequency and amplitude of glutamatergic neurotransmission to cardiac v...
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
Ultrafast imaging using plane or diverging waves has recently enabled new ultrasound imaging modes with improved sensitivity and very high frame rates. Some of these new imaging modalities include shear wave elastography, ultrafast Doppler, ultrafast contrast-enhanced imaging and functional ultrasound imaging. Even though ultrafast imaging already encounters clinical success, increasing even mo...
The amplitude of the b-wave of the electroretinogram (ERG) varies with a circadian rhythm in the green iguana; the amplitude is high during the day(or subjective day) and low during the night (or subjective night). Dopamine and melatonin contents in the eye are robustly rhythmic under constant conditions; dopamine levels are high during the subjective day, and melatonin levels are high during t...
Introduction: Video games are common cultural issues with great influence in all societies. One of the important cognitive effects of video games is on creating stress on video players. The present research objective was to study different types of stress in players based on video game styles. Methods: A total of 80 players, aged 18 to 30 years, played four types of video games; Ru...
Background and Aim: Auditory and visual stimuli are the most important factors in communication. It seems during the brain maturation, decrease of visual inputs causes enhancement of somatosensory and auditory cortical responses. In this research latency and amplitude of auditory middle latency responses (AMLR) are studied in blinds and normally sighted subjects. Materials and Methods: This des...
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