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Liquid crystal displays (LCD) are currently replacing the previously dominant cathode ray tubes (CRT) in most vision science applications. While the properties of the CRT technology are widely known among vision scientists, the photometric and temporal properties of LCDs are unfamiliar to many practitioners. We provide the essential theory, present(More)
The effect of electrical stimulation of the median raphe nucleus on the activity of spontaneously firing single neurones in the substantia nigra and mesencephalic reticular formation (MRF) has been investigated in urethane anaesthetized rats. Depression of activity was the predominant effect observed although this was sometimes accompanied by periods of(More)
UNLABELLED A double-blind, randomized, placebo-controlled study was conducted in 14 healthy male volunteers to assess the effects of sertraline on the pharmacokinetics and pharmacodynamics of carbamazepine. METHOD Subjects received carbamazepine 200 mg once daily for 2 days and every 12 hours thereafter. On Days 16 to 32, subjects also received either(More)
Among the various possible criteria guiding eye movement selection, we investigate the role of position uncertainty in the peripheral visual field. In particular, we suggest that, in everyday life situations of object tracking, eye movement selection probably includes a principle of reduction of uncertainty. To evaluate this hypothesis, we confront the(More)
Circling behaviour following the unilateral intranigral injection of the gamma-aminobutyric acid (GABA) transaminase inhibitor ethanolamine-O-sulphate, (EOS), or the tryptophan hydroxylase inhibitor p-chlorophenylalanine (pCPA) was compared, both for spontaneous circling and for circling induced by apomorphine administration. EOS-injected rats exhibited(More)
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