Is there a supplement that would improve my ability to make quick, split-second decisions and react to various stimuli?
L
onge
C
ity
Advocacy & Research for Unlimited Lifespans
Posted 16 November 2007 - 09:49 PM
Posted 16 November 2007 - 10:03 PM
Electroencephalogr Clin Neurophysiol. 1997 May;102(5):401-13.
Caffeine effects on perceptual and motor processes.
Lorist MM, Snel J.
University of Groningen, The Netherlands. m.m.lorist@ppsw.rug.nl
The effects of a single dose of caffeine on specific information processing operations were examined by using a visual selective attention task in which subjects were asked to select between a left and right hand response on the basis of two different target letters. The target was presented on a predefined position in the visual field and was either presented alone or with flanker letters, calling for the correct, the incorrect or no specific response. A dose of 3 mg/kg body weight caffeine or lactose, dissolved in a cup of decaffeinated coffee, was administered double blind and deceptively to overnight abstinence coffee drinkers. Behavioural measures were supplemented by psychophysiological measures. The present results replicated the basic findings obtained in this paradigm. The results indicated that the time to localise the target decreased and response preparation started earlier after caffeine than after placebo. These caffeine effects did not interact with the time subjects spent on the task or with the reaction time distribution, which might be due to a high level of practice.
PMID: 9191584 [PubMed - indexed for MEDLINE]
Nutr Neurosci. 2002 Dec;5(6):433-42.
A rapid effect of caffeinated beverages on two choice reaction time tasks.
Durlac PJ, Edmunds R, Howard L, Tipper SP.
Army Research Institute, Simulator Systems Research Unit, 12350 Research Parkway, Orlando, FL 32826, USA. pjdurlach@hotmail.com
Though consumers of tea and coffee can report feeling beneficial subjective effects of consumption virtually immediately, tests for objective effects of caffeine immediately post-consumption have been rare. Two experiments examined caffeine's ability to influence reaction time in choice reaction time tasks, using a dose of caffeine typical of a cup of tea or instant coffee, and testing at short post-consumption delays. Two groups of participants were given 60 mg of caffeine, after overnight abstinence, either in a hot tea drink, or a hot water drink. Two control groups also received hot tea or water, but without caffeine. In Experiment 1, participants were given a keypress task before the drink (baseline), immediately after the drink, and 40 min after the drink. In Experiment 2, a touch-screen test was given either 1, 14, or 27 min post consumption. Caffeine was found to reduce the effect of a distracter on reaction time in the keypress test and to reduce reaction time in a component of the touch-screen task; however, in neither experiment were these effects significantly modulated by post-consumption delay length. Thus, the speed of caffeine's action on psychomotor performance was shown to be on the order of minutes.
PMID: 12509073 [PubMed - indexed for MEDLINE]
Posted 16 November 2007 - 10:16 PM
Posted 16 November 2007 - 10:49 PM
Posted 16 November 2007 - 11:09 PM
Posted 16 November 2007 - 11:24 PM
Posted 17 November 2007 - 12:24 AM
Posted 17 November 2007 - 12:32 AM
Posted 17 November 2007 - 12:45 AM
Eirenicon,
Aye.
I'm not looking to dodge bullets. More like:
Actually, those balls do fly like bullets sometimes! [lol]
Posted 17 November 2007 - 01:04 AM
Posted 17 November 2007 - 07:05 AM
Posted 17 November 2007 - 07:49 AM
Posted 17 November 2007 - 07:03 PM
Posted 17 November 2007 - 09:09 PM
Posted 17 November 2007 - 09:42 PM
adderall
Posted 18 November 2007 - 05:46 PM
progressive, is you daily green tea with cocoa hot or cold? Do you add a sweetener? Does it taste good at all or is it strictly for health? It doesn't sound too tasty, but I could be wrong.
Posted 18 November 2007 - 09:55 PM
I drink a big cup of green tea w/ powdered cocoa every day.
...
I take it hot and add stevia. However, I have learned to love the taste of strong green tea and strong cocoa.
Posted 18 November 2007 - 10:44 PM
Posted 02 December 2007 - 06:06 PM
Posted 02 December 2007 - 10:35 PM
Psychomotor and cognitive effects of piribedil,
a dopamine agonist, in young healthy volunteers
by
Schuck S, Bentue-Ferrer D, Kleinermans D,
Reymann JM, Polard E, Gandon JM, Allain H.
Laboratoire de Pharmacologie Experimentale et Clinique,
Universite de Rennes I - Faculte de Medecine,
CS 34317, 35 043 Rennes cedex, France.
Fundam Clin Pharmacol. 2002 Feb;16(1):57-65
ABSTRACT
Piribedil is a dopamine agonist acting on D2 and D3 central nervous system dopamine receptors. This drug has been administered to 12 young healthy male volunteers (age 22 +/- 2 years) according to a single center randomized, double-blind, two ways cross-over, placebo controlled trial, including a washout period of one week. Placebo and piribedil were administered by a single intravenous infusion over 2 h (3 mg). Psychomotor performance and cognitive functions were assessed through a standardized and computerized psychometric tests battery and a continuous electroencephalogram (EEG) mapping. Piribedil improved simple reaction time (P=0.02), immediate (P=0.045 and 0.004), and delayed free recall (P=0.05), dual coding test (P=0.02) and increased theta and fast beta waves on the EEG (P < 0.05 and 0.001, respectively). No deleterious effect was observed on the tests exploring attention and concentration via the other procedures. It is concluded that a single intravenous perfusion of piribedil 3 mg improves alertness and the information processing speed within the central nervous system, in healthy volunteer
Posted 03 December 2007 - 07:34 AM
Posted 03 December 2007 - 10:16 PM
Oh yeah? Do you have any further comments? I was probably going to get a chance to try it soon.
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