V interfejse mozg–komp'yuter na volne P300 (IMK-P300) vybor komand pol'zovatelya vozmozhen za schet fokusirovaniya im vnimaniya vneshnem stimule-komande i vydelenii iz EEG reakcii k etomu stimulu — v vide komponentov potencialov, svyazannyh s sobytiyami (PSS). Dlya polucheniya signala PSS stimuly neobhodimo mnogokratno povtoryat', odnako vvidu sushchestvuyushchej variativnosti latentnosti reakc...

هدف: این تحقیق با هدف ارائه مدلی برای ارتقای صلاحیت‌های حرفه‌ای مشاوران آموزشی در خدمات به دانش‌آموزان مقطع متوسطه اول انجام شد.مواد و روش‌ها: روش پژوهش حاضر، توصیفی از نوع اکتشافی حیث رویکرد، ترکیبی (کیفی-کمی) بود. بدو کار بخش کیفی مبتنی بر اجرای مصاحبه‌های صورت نیمه‌ساختاریافته خبرگان، ابعاد مؤلفه‌ها شناسایی کمی بهره‌گیری پرسشنامه، نسبت جمع‌آوری داده‌ها اقدام شد. مشارکت‌کنندگان 14 خبره حوزه م...

A feeding trial was performed to assess dietary protein:lipid ratios for the grow-out phase of bullfrog (Lithobates catesbeianus). Nine balanced isoenergetic diets were formulated, combining three different protein levels (300, 400, and 500 g kg−1) with lipid (50, 100, 200 kg−1), designated as P300/50L, P300/100L, P300/200L, P400/50L, P400/100L, P400/200L, P500/50L, P500/100L, P500/200L. Additi...

A B S T R A C T Introduction: In an oddball experiment, the context in which novel stimuli are presented affects characteristics of novelty P3, i.e. as long as there is a difficult task in which the difference between standard and target stimuli is small, recurrent presentation of a highly discrepant stimulus can lead to P300 highly similar to novelty P3. Effect of stimulus properties on P300 h...

Introduction: Evoked potentials arisen by stimulating the brain can be utilized as a communication tool  between humans and machines. Most brain-computer interface (BCI) systems use the P300 component,  which is an evoked potential. In this paper, we evaluate the use of the hidden Markov model (HMM) for  detection of P300.  Materials and Methods: The wavelet transforms, wavelet-enhanced indepen...

OBJECTIVE The P300 event-related potential shows anterior P300 increases on NoGo tasks (target stimulus=withhold response) relative to Go tasks (target stimulus=commit response). This 'NoGo anteriorization' has been hypothesized to reflect response inhibition. However, silent-count tasks show similar P300 anteriorization. The P300 anteriorization on silent-count tasks relative to Go tasks canno...

OBJECTIVE To characterize downstream effectors of p300 acetyltransferase in the myocardium. BACKGROUND Acetyltransferase p300 is a central driver of the hypertrophic response to increased workload, but its biological targets and downstream effectors are incompletely known. METHODS AND RESULTS Mice expressing a myocyte-restricted transgene encoding acetyltransferase p300, previously shown to...