Prestimulus alpha and beta determinants of ERP responses in the Go/NoGo task.
نویسندگان
چکیده
The nature of the relationships between the level of immediately-prestimulus EEG activity and auditory ERP components remains unclear. Particularly, both inverse and direct relationships have been reported for the alpha band. Here we aim to clarify the pattern of prestimulus EEG contributions in alpha (8-13 Hz), and investigate those in beta (14-24 Hz), for five ERP components (P1, N1, P2, N2, P3) in an auditory equiprobable Go/NoGo paradigm. Separate FFTs were applied to the prestimulus Cz data of each accepted trial. The alpha and beta bands were independently assessed. The mean prestimulus spectral band amplitude was computed and used to sort the trials at nine central sites, and the upper and lower sorted trial thirds were averaged to form ERPs for Go and NoGo responses. Prestimulus EEG level effects (High vs. Low) were examined in each component's latency and amplitude, and Go reaction time was also assessed. Prestimulus alpha directly modulated the amplitude of the positive components (P1, P2, P3), while prestimulus beta directly modulated the positivity of the exogenous component amplitudes (P1, N1, P2); each amplitude effect occurred independently of the Go/NoGo stimulus conditions. Prestimulus beta also inversely modulated Go N1 latency; no reaction time effects were found for either band. The pattern of findings is intriguing and the various modulations are discussed in relation to attention and arousal. Together, these results confirm the importance of the EEG brain state immediately prestimulus, and indicate the considerable influence that these states have on event-related response processing.
منابع مشابه
Prestimulus delta and theta determinants of ERP responses in the Go/NoGo task.
Ongoing low-frequency EEG activity has long been associated with ERP components and their cognitive processing interpretations, yet few studies have directly investigated the prestimulus low-frequency EEG-ERP relationships, particularly within the auditory domain. The present study assessed the delta (1-3 Hz) and theta (4-7 Hz) bands individually, and their prestimulus influence on five subsequ...
متن کاملP300 Component Modulation During a Go/Nogo Task in Healthy Children
ABSTRACT Introduction: Several differences in the P300 component are observed when responses must be executed or inhibited in the Go/Nogo task. However, few studies were established by using well-controlled task with respect to the preparatory processing and stimulus probability. In the present study, we examined the peak amplitude and latency of Go-P300 (P300 evoked by visual Go stimuli) and N...
متن کاملThe Effects of Amnestic Mild Cognitive Impairment on Go/NoGo Semantic Categorization Task Performance and Event-Related Potentials.
We examined the effects of amnestic mild cognitive impairment (aMCI) on behavioral (response times and error rates) and scalp-recorded event-related potential (ERP) measures of response execution and inhibition, using Go/NoGo tasks involving basic and superordinate semantic categorization. Twenty-five aMCI (16 F; 68.5±8 years) and 25 age- and gender-matched normal control subjects (16 F; 65.4±7...
متن کاملEvaluation of self-esteem in children with attention-deficit/hyperactivity disorder based on event-related potential
Background: Self-esteem, the value we place on ourselves, has been associated with effects on health, and life satisfaction. Many studies reported that children with attention-deficit/hyperactivity disorder (ADHD) suffer from low self-esteem has been associated with negative life outcomes. The present study investigated neural correlation of self-esteem in this group compared with typically dev...
متن کاملEEG Dynamics of a Go/Nogo Task in Children with ADHD
BACKGROUND Studies investigating event-related potential (ERP) evoked in a Cue-Go/NoGo paradigm have shown lower frontal N1, N2 and central P3 in children with attention-deficit/hyperactivity disorder (ADHD) compared to typically developing children (TDC). However, the electroencephalographic (EEG) dynamics underlying these ERPs remain largely unexplored in ADHD. METHODS We investigate the ev...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- International journal of psychophysiology : official journal of the International Organization of Psychophysiology
دوره 89 1 شماره
صفحات -
تاریخ انتشار 2013