Two-step principal component analysis (PCA) as a method for separating auditory N1 and N250 elicited from 9-year-old children using a dense electrode array : comparison between ERP-PCA and CSD-PCA
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Single-trial-based temporal principal component analysis on extracting event-related potentials of interest for an individual subject
Zhang, Guanghui; Li, Xueyan; Lu, Yingzhi; Tiihonen, Timo; Chang, Zheng; Cong, Fengyu (Elsevier, 2023)Background: Temporal principal component analysis (tPCA) has been widely used to extract event-related potentials (ERPs) at group level of multiple subjects ERP data and it assumes that the underlying factor loading is ... -
Event-related potentials to tones show differences between children with multiple risk factors for dyslexia and control children before the onset of formal reading instruction
Hämäläinen, Jarmo; Lohvansuu, Kaisa; Ervast, Leena; Leppänen, Paavo H.T. (Elsevier BV; International Organization of Psychophysiology, 2015)Multiple risk factors can affect the development of specific reading problems or dyslexia. In addition to the most prevalent and studied risk factor, phonological processing, also auditory discrimination problems have ... -
Attentional Processes in Children With Attentional Problems or Reading Difficulties as Revealed Using Brain Event-Related Potentials and Their Source Localization
Santhana Gopalan, Praghajieeth Raajhen; Loberg, Otto; Lohvansuu, Kaisa; McCandliss, Bruce; Hämäläinen, Jarmo; Leppänen, Paavo (Frontiers Media, 2020)Visual attention-related processes include three functional sub-processes: alerting, orienting, and inhibition. We examined these sub-processes using reaction times, event-related potentials (ERPs), and their neuronal ... -
Responsivity to dyslexia training indexed by the N170 amplitude of the brain potential elicited by word reading
Gonzáles, G. Fraga; Žarić, G.; Tijms, J.; Bonte, M.; Blomert, L.; Leppänen, Paavo H.T.; van der Molen, M. W. (Academic Press, 2016)The present study examined training effects in dyslexic children on reading fluency and the amplitude of N170, a negative brain-potential component elicited by letter and symbol strings. A group of 18 children with ...
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