Mostrando 521 - 540 Resultados de 854 Para Buscar '"The Alpha Band"', tiempo de consulta: 0.56s Limitar resultados
  1. 521
    “…Frontal alpha asymmetry (FAA) as measured by electroencephalographic (EEG) power in the alpha band (8–13 Hz), is a sensitive indicator of asymmetric brain activity in the frontal cortex. …”
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  2. 522
    “…Furthermore, the relative power in Alpha band increased with decreasing task load and time on task, while relative Theta power showed the opposite pattern. …”
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  3. 523
    “…We found that lower alpha band activity was reduced when individuals prepared unexpected sentence endings compared to expected sentence endings. …”
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  4. 524
    “…The results showed that females induced stronger TF power and PLI values than males in only the alpha band over the whole brain regarding the vMMN. …”
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  5. 525
    “…We have investigated the changes in Electroencephalography (EEG) power and functional connectivity of alpha band in resting state of the brain after exposure to Indian classical music. …”
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  6. 526
    “…Both alpha magnitude and the Berger effect were larger for individual alpha than for a generic (8–12 Hz) alpha band. The log‐transform on single epochs (a) maximized the t‐value of the contrast between the eyes‐open and eyes‐closed conditions when tested within each participant, and (b) rendered near‐normally distributed alpha power across epochs and participants, thereby making further transformation of epoch averages superfluous. …”
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  7. 527
    “…We show that for oscillations recorded during rest, high levels of alpha‐band LRTC in the sensorimotor region predicted good reaction‐time performance in the attention task. …”
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  8. 528
    “…Here, we investigated the effects of radiofrequency (RF) fields emitted by new-generation mobile technologies, specifically, Universal Mobile Telecommunications System (UMTS) and Long-Term Evolution (LTE), on intrinsic scalp EEG activity in the alpha band (8–12 Hz) and cognitive performance in the Stroop test. …”
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  9. 529
    “…RESULTS: We found that the IMPA1 mutation was associated with relative decreases in frontal theta band power as well as altered alpha-band variability with no regional specificity during the eyes-open condition. …”
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  10. 530
    “…As expected, accuracy decreased with increasing WM load, reflected by power modulations in the theta-alpha band (5–12 Hz). Importantly, these power changes were directly related to the tract strength between parahippocampus and parietal cortex. …”
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  11. 531
    “…To distinguish entrainment from rebound effects, we investigated the correlation between alpha peak frequency change and alpha-enhancement strength. We quantified the alpha band power before and after 10 Hz rACS in 15 healthy subjects. …”
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  12. 532
    “…Neither top-down nor bottom-up cross-modal attention modulated alpha or gamma power in primary sensory cortices. Instead, we found alpha band effects in bilateral frontal and right parietal cortex. …”
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  13. 533
    “…Linear mixed effects analyses were conducted to model the latency of responses reaction time (RT) to automation signals using the physiological metrics and time period. Alpha-band activity at the midline parietal region in conjunction with heart rate variability (HRV) was important in modeling RT over time. …”
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  14. 534
    “…The employed EEG indices were the mental engagement (ME: the ratio between beta activity and the sum of alpha and theta activity); the approach/withdrawal (AW: the frontal alpha asymmetry in the alpha band); and the frontal theta activity and the spectral asymmetry index (SASI: the ratio between beta minus theta and beta plus theta). …”
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  15. 535
  16. 536
    “…Moreover, we observed a later modulation of the alpha band (8–12 Hz) from 555–785 ms over central electrodes, with estimated generators within the left superior parietal lobule, which may reflect post-lexical activation of the object-directed features of the motor action concepts. …”
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  17. 537
    “…We first discuss evidence for interactions between endogenous oscillatory brain dynamics and externally induced electromagnetic field activity. Alpha band (8–12 Hz) activities are of special interest here because of the wide application and therapeutic effectiveness of rhythmic TMS (rTMS) using a stimulus repetition frequency at or near 10 Hz. …”
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  18. 538
    “…Furthermore, the evoked power of the alpha band during the self-referential condition was significantly correlated with the SRM bias score in the patients (r = 0.595, p = 0.009). …”
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  19. 539
    por Sorati, Marzieh, Behne, Dawn Marie
    Publicado 2019
    “…However, musicians showed significant suppression of N1 amplitude and desynchronization in the alpha band in audiovisual speech, not present for non-musicians. …”
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  20. 540
    “…The findings showed that subjective levels of stress and sympathetic nerve activity were increased in the MEG session in the stress condition, whereas appetite gradually increased in the MEG session only in the control condition. The decrease in alpha band power in the frontal pole caused by viewing the food images was greater in the stress condition than in the control condition. …”
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