Enhanced cognitive performance and cheerful mood by standardized extracts of <i>Piper methysticum</i> (Kava‐kava)

Thompson, Richard B.; Ruch, Willibald; Hasenöhrl, Rüdiger U.

doi:10.1002/hup.581

Cited by 37 publications

(35 citation statements)

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“…The intake of a single dose of Kava extract (300 mg; p.o.) led to an increase in state cheerfulness, while the phytopharmacon did not influence state seriousness and bad mood (Thompson et al 2004). Helping behavior and physical activity were positively associated with cheerfulness (Sarid et al 2010).…”

Section: Introductionmentioning

confidence: 86%

Temperamental basis of sense of humor: validating the state-trait-cheerfulness-inventory in Mainland China

Chen

Ruch

2016

Humor

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This paper examined the reliability and validity of the State-Trait-Cheerfulness-Inventory (STCI) in Mainland China. The Chinese translation of the STCI-T<106i>, STCI-S<45i> and the Temporal Satisfaction with Life Scale (TSWLS) were administered to 476 university students (313 females, 157 males, 6 missing; 20.40 ± 1.35 years of age). Results showed that the STCI-T<106> and the STCI-S<45> had high Cronbach alphas ranging from 0.60 to 0.92 in Mainland China, and the factorial structures of the instruments were supported. The STCI-T<60> and STCI-S<30> were developed utilizing three criteria for the selection of items. Cronbach alphas were satisfactory ranging from 0.67 to 0.94. The factor structure of the items appeared to be highly generalizable in Mainland China. Joint factor analyses of the state and trait items yielded three factors (cheerfulness, seriousness and bad mood) both as traits and states with the homologous concepts positively correlated. As expected, cheerfulness correlated negatively with bad mood, and cheerfulness correlated negatively with state seriousness. Meanwhile, seriousness correlated positively with bad mood. Moreover, life satisfaction was related positively with cheerfulness and negatively with bad mood, and could be predicted by high cheerfulness and low bad mood. Applications of the STCI-T<60> and STCI-S<30> in the Chinese context and future research are discussed. Abstract: This paper examined the reliability and validity of the State-TraitCheerfulness-Inventory (STCI) in Mainland China. The Chinese translation of the STCI-T<106i>, STCI-S<45i> and the Temporal Satisfaction with Life Scale (TSWLS) were administered to 476 university students (313 females, 157 males, 6 missing; 20.40 ± 1.35 years of age). Results showed that the STCI-T<106> and the STCI-S<45> had high Cronbach alphas ranging from 0.60 to 0.92 in Mainland China, and the factorial structures of the instruments were supported. The STCI-T<60> and STCI-S<30> were developed utilizing three criteria for the selection of items. Cronbach alphas were satisfactory ranging from 0.67 to 0.94. The factor structure of the items appeared to be highly generalizable in Mainland China. Joint factor analyses of the state and trait items yielded three factors (cheerfulness, seriousness and bad mood) both as traits and states with the homologous concepts positively correlated. As expected, cheerfulness correlated negatively with bad mood, and cheerfulness correlated negatively with state seriousness. Meanwhile, seriousness correlated positively with bad mood. Moreover, life satisfaction was related positively with cheerfulness and negatively with bad mood, and could be predicted by high cheerfulness and low bad mood. Applications of the STCI-T<60> and STCI-S<30> in the Chinese context and future research are discussed.

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Section: Introductionmentioning

confidence: 86%

Temperamental basis of sense of humor: validating the state-trait-cheerfulness-inventory in Mainland China

Chen

Ruch

2016

Humor

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“…Many researchers demonstrated Kava's effectiveness in anxiety disorders and enhancing sleep quality through preclinical or placebo-controlled double-blind studies (Capasso and Sorrentino, 2005;Brown and Gerbarg, 2001;Conner et al, 2001;Witte et al, 2005;Shinomiya et al, 2005b;Jorm et al, 2004a;Barnett et al, 2001;Cote et al, 2004;Abraham et al, 2004;Geier and Konstantinowicz, 2004;Feltenstein et al, 2003;Wheatley, 2001a;2001b;Singh and Singh, 2002;Ernst, 2002;Smith et al, 2001;Beaubrun and Gray, 2000;Pittler and Ernst, 2000). Thompson et al (2004) investigated the acute effects of the herbal anxiolytic Kava-kava on emotional reactivity and cognitive performance through a double-blind randomized placebo-controlled trial involving healthy volunteers. The results of this study indicate that the mood-elevating effects of Kava were most prominent in trait cheerful subjects, indicating that trait cheerfulness moderated the drug-induced increase in cheerful mood.…”

Section: Piper Methysticum (Kava Kava)mentioning

confidence: 99%

Potential medicinal plants for CNS disorders: an overview

2006

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Although very few drugs are currently approved by regulatory authorities for treating multi-factorial ailments and disorders of cognition such as Alzheimer's disease, certain plant-derived agents, including, for example, galantamine and rivastigmine (a semi-synthetic derivative of physostigmine) are finding an application in modern medicine. However, in Ayurveda, the Indian traditional system of medicine which is more than 5000 years old, selected plants have long been classified as 'medhya rasayanas', from the Sanskrit words 'medhya', meaning intellect or cognition, and 'rasayana', meaning 'rejuvenation'. These plants are used both in herbal and conventional medicine and offer benefits that pharmaceutical drugs lack. In the present article, an attempt has been made to review the most important medicinal plants, including Ginkgo biloba, St John's wort, Kava-kava, Valerian, Bacopa monniera and Convolvulus pluricaulis, which are widely used for their reputed effectiveness in CNS disorders.

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“…High trait cheerful individuals readily engage in amusing interactions and they also experience more amusement than those low in trait cheerfulness in elicitors free of context, like laughing gas or the herb kava-kava (see Thompson et al 2004). On the contrary, low trait cheerful individuals have generally higher thresholds for the experience and expression of amusement compared to high trait cheerful individuals.…”

Section: Introductionmentioning

confidence: 99%

The influence of a virtual companion on amusement when watching funny films

et al. 2015

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We investigated the role of a virtual companion and trait cheerfulness on the elicitation of amusement. Ninety participants watched funny films in four conditions: either alone, with a virtual companion laughing or verbally expressing amusement at fixed time points (pre-scripted), or additionally joining the participant's laughter (responsive companion). Amusement was assessed facially and vocally by coding Duchenne Displays and laughter vocalizations. Participants' cheerful mood pre and post the film watching and positive experience were assessed. Results showed that high trait cheerful individuals generally experienced and expressed more amusement than low trait cheerful individuals. The presence of a virtual companion (compared to being alone) led to more laughter for individuals low in trait cheerfulness. Unexpectedly, the responsive companion did not elicit more amusement than the pre-scripted companion. The general disliking of virtual companions and gelotophobia related negatively to amusement. Amusement expressing virtual companions may be used in interventions aiming at eliciting positive responses, especially for individuals with higher thresholds for amusement.

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Enhanced cognitive performance and cheerful mood by standardized extracts of Piper methysticum (Kava‐kava)

Cited by 37 publications

References 44 publications

Temperamental basis of sense of humor: validating the state-trait-cheerfulness-inventory in Mainland China

Temperamental basis of sense of humor: validating the state-trait-cheerfulness-inventory in Mainland China

Potential medicinal plants for CNS disorders: an overview

The influence of a virtual companion on amusement when watching funny films

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