Genevieve McArthur

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The aim of this study was to determine if, and when, the neural processes involved in switching associations formed with angry and happy faces start to diverge. We measured event-related potentials (ERPs) and behavioural responses while participants performed a reversal learning task with angry and happy faces. In the task, participants were simultaneously(More)
The mismatch negativity (MMN) component of the auditory event-related potential (ERP) reflects the process of change detection in the auditory system. The present study investigated the effect of deviance direction (increment vs. decrement) and calculation method (traditional vs. same-stimulus) on the amplitude of MMN. MMN was recorded for increments and(More)
Adolescence is a time of great change in the brain in terms of structure and function. It is possible to track the development of neural function across adolescence using auditory event-related potentials (ERPs). We measured passive auditory ERPs to pure tones and consonant-vowel (CV) syllables in 90 children and adolescents aged 10-18 years, as well as 10(More)
Previous work has found that auditory event-related potentials show maturational changes, with latency and amplitude of late components (N1 and P2) decreasing and increasing with age respectively. Our goal was to test the hypothesis that these changes reflect increased speed of neural processing in the auditory system. Thirty-three listeners, aged 10-50(More)
The aims of this study were to (a) compare sight word training and phonics training in children with dyslexia, and (b) determine if different orders of sight word and phonics training have different effects on the reading skills of children with dyslexia. One group of children (n = 36) did 8 weeks of phonics training (reading via grapheme-phoneme(More)
This study examined the relationship between social anxiety and the neural processing of threat in faces. Twenty-one adults with different levels of society anxiety were tested for their event-related potential responses to unattended threatening and nonthreatening faces, presented upright and upside-down, at three points in time: 160-210 ms (vertex(More)
Background. Auditory event-related potentials (ERPs) have proved useful in investigating the role of auditory processing in cognitive disorders such as developmental dyslexia, specific language impairment (SLI), attention deficit hyperactivity disorder (ADHD), schizophrenia, and autism. However, laboratory recordings of auditory ERPs can be lengthy,(More)
We report the first three cases of selective developmental letter position dyslexia in English. Although the parents and teachers of the children were concerned about these children's reading, standard tests did not reveal their deficit. It was only when the appropriate target words were presented, in this case, migratable words, that their letter position(More)
This study tested if children with specific language impairment (SLI) or children with specific reading disability (SRD) have abnormal brain responses to sounds. We tested 6- to 12-year-old children with SLI (N =19), children with SRD (N =55), and age-matched controls (N =36) for their passive auditory event-related potentials (ERPs) to tones, rapid tones,(More)
BACKGROUND Around 5% of English speakers have a significant problem with learning to read words. Poor word readers are often trained to use letter-sound rules to improve their reading skills. This training is commonly called phonics. Well over 100 studies have administered some form of phonics training to poor word readers. However, there are surprisingly(More)