Effects of Marihuana on Contingent Negative Variation and Reaction Time

Drugs as Research Tools in Psychology: Experiments with Drugs in Personality Research

“…On the other hand [p. 718]: 'The depressant effects of A9-THC on CNV magnitude could be due to dose-and personalityrelated actions in the opposite direction on the same brain system, or to separate depressant effects on differ ent systems. Biphasic dose-related effects of marihuana on CNV magnitude have been reported previously by Braden et al [1974], and the direction of CNV response to nicotine is influenced by both dose and personality [. Ashton et al, 1974Ashton et al, , 1980Eysenck and O 'Connor, 1979].…”

A Comparison of Some Physiological and Psychological Effects of Propranolol and Diazepam in Normal Subjects

“…Bidirectional effects on the CNV have been shown to occur after several other drugs including nicotine (Ashton et al, 1973(Ashton et al, , 1974(Ashton et al, , 1975, amphetamine (Teece & Cole, 1974) and cannabis (Low, Klonoff & Marcus, 1973;Braden, Stillman & Wyatt, 1974), and biphasic effects on behaviour are well known to occur with alcohol and barbiturates. In the case of nicotine, the direction of the effect on the CNV was influenced by the dose and the personality of the subject (Ashton et al, 1973(Ashton et al, , 1974(Ashton et al, , 1975.…”

The Effects of Tetrahydrocannabinol on the Recognition of Emotionally Charged Words: An Analysis Using Event-Related Brain Potentials

“…Event-related brain potentials are minute voltage fluctuations which can be recorded noninvasively from the intact human scalp occurring in response to stimulus events and cognitive processes [15]. There have been some early studies using ERPs to investigate the effects of tetrahydrocannabinol (THC) [16][17][18][19][20][21][22]. However, these were restricted to rather simple paradigms such as the recording of the contingent negative variation or the P300 late positive component.…”