Effects of Dexamphetamine and Nabilone on Temporal Stimuli Binding Windows using Auditory or Visual Unimodal and Multimodal Illusions in Healthy Volunteers

I hypothesised that healthy participants would show widening of temporal stimuli binding windows (TSBWs) in illusions with a variety of multimodal and unimodal stimuli when their brain dopamine/noradrenaline levels are increased. Further more, if cannabis is propsychotic, a cannabinoid agonist would cause widened TSBWs in healthy participants but TSBWs would be narrowed if cannabis is antipsychotic. In conclusion, increasing brain dopamine/noradrenaline using dexamphetamine only widened the TSBWs at audio-visual multimodal illusion test, not audio or visual unimodal illusion tests. The synthetic cannabinoid receptor agonist, nabilone, did not increase TSBWs but did increase the experience of auditory unimodal illusion in healthy participants.