Jacoba Johnson

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The contribution of rewarded actions to automatic attentional selection remains obscure. We hypothesized that some forms of automatic orienting, such as object-based selection, can be completely abandoned in favor of a reward-maximizing strategy. In the two experiments reported here, we presented identical visual stimuli to observers while manipulating what(More)
The performance of a slide agglutination test for detection of toxoplasma-specific IgG was assessed and compared with that of the dye test and latex agglutination test. The slide agglutination test was as sensitive as, and more specific than, latex agglutination. The predictive value of a negative slide agglutination test was less than the latex(More)
OBJECTIVES Our main objective was to evaluate the feasibility of an automated analysis of fetal myocardial velocity recordings obtained by color tissue Doppler imaging (cTDI). METHODS This was a prospective cross-sectional observational study of 107 singleton pregnancies in ≥41 weeks of gestation. Myocardial velocity recordings were obtained by cTDI in a(More)
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