Joram van Driel

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Performance errors in conflict tasks often result from inappropriate action impulses, and are thought to signal the need for increased control over the motor system. However, errors may also result from lapses in sustained attention, which may require different monitoring and adaptation mechanisms. Distinguishing between the mechanisms of adaptation is(More)
A large body of findings has tied midfrontal theta-band (4-8 Hz) oscillatory activity to adaptive control mechanisms during response conflict. Thus far, this evidence has been correlational. To evaluate whether theta oscillations are causally involved in conflict processing, we applied transcranial alternating current stimulation (tACS) in the theta band to(More)
Dyslexia is heritable and associated with auditory processing deficits. We investigate whether temporal auditory processing is compromised in young children at-risk for dyslexia and whether it is associated with later language and reading skills. We recorded EEG from 17 months-old children with or without familial risk for dyslexia to investigate whether(More)
Large-amplitude sleep slow oscillations group faster neuronal oscillations and are of functional relevance for memory performance. However, relatively little is known about the impact of slow oscillations on functionally coupled networks. Here, we provide a comprehensive view on how human slow oscillatory dynamics influence various measures of brain(More)
BACKGROUND Cross-frequency coupling methods allow for the identification of non-linear interactions across frequency bands, which are thought to reflect a fundamental principle of how electrophysiological brain activity is temporally orchestrated. In this paper we uncover a heretofore unknown source of bias in a commonly used method that quantifies(More)
During situations of response conflict, cognitive control is characterized by prefrontal theta-band (3- to 8-Hz) activity. It has been shown that cognitive control can be triggered proactively by contextual cues that predict conflict. Here, we investigated whether a pretrial preparation interval could serve as such a cue. This would show that the temporal(More)
In grapheme-color synesthesia, a number or letter can evoke two different and possibly conflicting (real and synesthetic) color sensations at the same time. In this study, we investigate the relationship between synesthesia and executive control functions. First, no general skill differences were obtained between synesthetes and non-synesthetes in classic(More)
Using a sensitive enzyme immunoassay, carcinoplacental alkaline phosphatase (CPAP) was determined in sera of 1266 patients with gyneocological cancers. All these patients were referred after initial surgical treatment elsewhere. There were 95 patients with evidence of disease at the time of the study and 1171 without evidence of disease. Of the 95 patients(More)
We have compared a new enzyme immunoassay for progesterone receptors (Abbott PgR-EIA, monoclonal) with our standard radioligand binding-assay (PgR-RBA). For both assays cytosols were freshly prepared from human breast cancer specimens that had been stored frozen for up to 1 year, and predominantly tissues were used which contained critically low amounts of(More)
Placental-like alkaline phosphatase (PLAP) was measured by its catalytic activity (CA), using an amplified enzyme-linked immunoassay, and by its immunologic activity (IA), using an enzyme-linked immunosorbent assay. In both assays the same monoclonal anti-PLAP antibody was used as the primary reagent. This antibody reacts with the main epitope on PLAP that(More)