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  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 24 (1987), S. 0 
    ISSN: 1469-8986
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin , Psychologie
    Notizen: Stressful stimuli have been reported to trigger increased smoking. The present experiment involved induction of differing levels of performance anxiety in 10 male smokers. In the high anxiety condition, subjects performed mental arithmetic with competitive pressure; in the low anxiety control condition, no competitive pressure was applied. Both sessions included smoking and sham smoking trials. Scores on the Profile of Mood States showed significantly more anxiety on the day of the high anxiety session than on the day of the low anxiety session, confirming the effectiveness of anxiety-induction procedures. Nicotine intake as inferred from topographical measures was significantly greater under conditions of high anxiety. Greater post-smoking decreases in anxiety in the high-anxiety condition, as compared to the low-anxiety condition and the two sham-smoking conditions, were also observed. Both smoking and anxiety level significantly increased heart rate; lack of statistical interaction suggests additive rather than potentiating effects. Peripheral skin temperature rose in response to mental arithmetic, a trend counteracted by smoking. No significant smoking-related changes in performance were found.
    Materialart: Digitale Medien
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  • 2
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Psychology of women quarterly 26 (2002), S. 0 
    ISSN: 1471-6402
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Psychologie
    Notizen: Studies examining women’s appearance ideals and weight concern have predominantly relied on samples of White women. This study addresses this oversight, examining the different relations among embodied femininity, weight concern, and depressive symptomatology that exist for different groups of women. Using a nationally representative sample of women between the ages of 18 and 45, bivariate analyses were conducted using three samples of Latina, Black, and White women. When sample size allowed, a multivariate model was tested (i.e., for Black and White respondents). Results confirm, as hypothesized, different patterns of relations between embodied femininity, weight concern, and depressive symptomatology for each of the samples. At the bivariate level, embodied femininity, weight concern, and depressive symptomatology were positively intercorrelated among Latina respondents. Whereas weight concern fully mediated the relation between embodied femininity and depressive symptomatology for the White respondents, the mediational model was not borne out for the Black respondents. For the latter, although embodied femininity and weight concern were related, weight concern was unrelated to depressive symptoms. Both of these patterns are discussed, as well as the need for greater empirical sensitivity to various constructions of femininity among women of different ethnicities.
    Materialart: Digitale Medien
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  • 3
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Psychology of women quarterly 25 (2001), S. 0 
    ISSN: 1471-6402
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Psychologie
    Notizen: There are strong social pressures for U.S. females, particularly those of European heritage, to achieve and maintain an extremely low body weight. These pressures are reflected in a variety of media sources, including advertising. We argue that valuing thinness, exposure to thinness-depicting media, and lacking skepticism about tobacco advertisements have adverse effects on young women's decisions about smoking, particularly smoking for weight control. We tested these hypotheses in a study of 188 female undergraduates, both never-smokers and daily smokers. Believing that smoking controls weight, exposure to thinness-depicting media, and low levels of skepticism about tobacco advertising were associated with being a smoker. Among smokers, believing that smoking controls weight, internalizing thinness pressures, and low levels of feminist consciousness were associated with smoking for weight control. Results are discussed with the aim of encouraging public health anti-smoking campaigns targeted at women, and smoking cessation programs that are responsive to the needs of weight-concerned female smokers.
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    Oxford, UK : Carfax Publishing Limited
    Addiction 93 (1998), S. 0 
    ISSN: 1360-0443
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin , Psychologie
    Notizen: Aims. Recent research suggests that people who become smokers may be more sensitive to the positive effects of nicotine than those who do not take up smoking . Design and setting. The present study was designed to investigate this hypothesis by querying initial experiences with cigarette smoking in smokers, ex-smokers and never-smokers recruited from the local community . Participants. Subjects were 80 women (23 highly dependent smokers (Fagerstrom Tolerance Questionnaire score 7), 30 less-dependent smokers (FTQ6), 12 ex-smokers and 15 never-smokers) . Measurements. Subjects were asked to rate pleasurable sensations and displeasurable sensations on a scale of 1=none to 4=intense, and to indicate the presence or absence of pleasurable rush or buzz, relaxation, dizziness, nausea and cough; social context was also queried. Pleasurable rush or buzz, relaxation, dizziness, nausea and cough were related to ratings of pleasurable and unpleasant sensations to establish their affective valence . Findings. Pleasurable sensations, pleasurable rush or buzz and relaxation (pleasant effects) were significantly more likely to occur in the smoker categories than in never-smokers. The ratio of pleasurable to unpleasant sensations, computed as an index of overall hedonic impact of initial exposure, also significantly favored the smoker categories. By contrast, unpleasant sensations, nausea and cough (unpleasant effects) did not differ significantly among groups. Dizziness, which did not definitely emerge as either pleasurable or unpleasant, was significantly more likely to be reported among the smoker groups than among never-smokers . Conclusions. People who become highly dependent cigarette smokers appear to have more pleasurable sensations at their initial exposure to tobacco; unpleasant reactions to the first cigarette do not seem to protect against subsequent smoking.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Addiction 89 (1994), S. 0 
    ISSN: 1360-0443
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin , Psychologie
    Notizen: Cigarette smokers (n = 387) completed a questionnaire measure of smoking motives, and subgroups of this sample provided external validation information. Seven factors emerged from a principal components’analysis: automatic, sedative, addictive, stimulation, psychosocial, indulgent and sensorimotor manipulation. A higher-order principal components analysis revealed the presence of two second-order factors. Inspection of the pattern of correlations between factor scores and criterion variables clearly indicated that the first four factors above and their underlying second-order factor are more closely related to nicotine pharmacology and mood-altering effects of nicotine than the latter three motives and their underlying second-order factor. Moreover, the positive correlations between these pharmacological motives and age, coupled with a negative relationship between age and the non-pharmacological motives, support the description of the smoking career as a progressive transfer of reward from non-pharmacological to pharmacological factors. These findings suggest that self-reported reasons for smoking represent more than bias in verbal report.
    Materialart: Digitale Medien
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  • 6
    ISSN: 1360-0443
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin , Psychologie
    Notizen: Sensitivity to nicotine was explored using test doses administered via intra-nasal aerosol in 10 smokers and JO never-smokers. Smokers received 1.50 mg nicotine (in 2 sprays, 〈 5 seconds apart, one spray per nostril); never-smokers received either 0.50 mg (n = 3) or 0.25 (n = 7) nicotine. Accumulation of nicotine in plasma, per unit dose administered, was nearly four times greater in never-smokers, than in smokers, indicating differences in pharmacokinetic tolerance. To examine sensitivity to nicotine without this confound, peak physiological reactivity (heart rate and blood pressure changes) was divided by peak plasma nicotine increment and the ratio was expressed as a function of cotinine level prior to dosing, thereby relating sensitivity to nicotine to history of exposure. In smokers, functional sensitivity to nicotine was inversely related to customary nicotine intake, replicating previous findings for light and heavy smokers. The observation that never-smokers were not much more sensitive to nicotine than light smokers is notable given the disparity in previous history of exposure.
    Materialart: Digitale Medien
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Psychopharmacology 108 (1992), S. 460-465 
    ISSN: 1432-2072
    Schlagwort(e): Cigarette smoking ; Dose-related ; Euphoriant effects ; Nicotine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Two studies were conducted to replicate and extend previous demonstrations of smoking-induced, dose-related reports of euphoria, and to confirm this relationship using measures of plasma nicotine. In experiment 1, overnight-deprived subjects, in three different sessions, smoked ultralow-, high-nicotine, and usualbrand cigarettes. In experiment 2, ultralow-, medium-, and high-nicotine cigarettes were used, and plasma nicotine was measured. In both studies, subjects were asked to depress a button during euphoric sensations. Number of sensations for the ultralow-nicotine cigarette was significantly lower than for the high-nicotine cigarette in the first study, and than for both the medium- and high-nicotine conditions in the second; a significant linear trend was observed for number of sensations as a function of plasma nicotine level in the second study. For the high-nicotine cigarette, 19 of 22 subjects experienced at least one sensation (mean around three), starting around 2.5 min after lighting up. Together, these studies support the existence of a dose-response relationship for nicotine-induced euphoric sensations; suggest that they are more pronounced following overnight abstinence than following minimal deprivation, and in more dependent smokers; and characterize in detail the temporal features of these sensations.
    Materialart: Digitale Medien
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  • 8
    ISSN: 1432-2072
    Schlagwort(e): Aerosol ; Nicotine ; Controlled dosing ; Cortisol response ; Physiological response ; Subjective response ; Smokers
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The present report describes anIntranasalNicotineAerosolDeliveryDevice (INADD) employing an artist's airbrush as aerosolizer and precise, electromechanical control of spray duration. It was designed for the administration of controlled doses of nicotine in a laboratory setting and has been used successfully in over 30 smokers and nonsmokers of both genders. In the present study, nicotine was administered to 12 male smokers at three different doses (0.05 mg, 1.00 mg, and 2.00 mg), and at the same dose (1 mg) on three different occasions. The low dose produced a minimal change in plasma nicotine, while the high dose produced a peak increment of around 16 ng/ml. The medium dose reliably produced a peak increment of around 8–9 ng/ml on all three occasions. Nicotine in plasma showed a sharp rise followed by a slower decline, mimicking the pattern associated with cigarette smoking. Physiological and biochemical responses showed significant dose-response relationships. Subjective reports suggested that aerosol dosing was somewhat aversive, but it is unclear whether this effect is intrinsic to the method or due to other factors. The device described in this report answers the need for a safe and easy means of controlling nicotine dose. Moreover, since nicotine administration via aerosol is novel for both smokers and non-smokers, minimizing the contributions of behavioral tolerance and habituation to the dosing vehicle, it lends itself to the comparison of the pharmacological effects of nicotine between experienced and naive subjects.
    Materialart: Digitale Medien
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  • 9
    ISSN: 1573-3521
    Schlagwort(e): cigarette smoking ; cotinine ; exercise ; nicotine ; stress hormones
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract The present study was conducted to examine the effects of acute aerobic exercise on smoking behavior. On alternate days, 10 healthy young smokers were subjected to half an hour of sustained high exercise (about 56% of maximum work capacity) or of low exercise (about 28% of maximum, simulating normal daytime activity). During the high-exercise condition, there were pronounced increases in physiological markers of physical activity such as mean work, heart rate, and lactic acid as well as elevations in circulating hormones (norepinephrine, epinephrine, and immunoreactive beta-endorphin and cortisol) known to be affected by vigorous exercise. Despite a trend toward decreased desire for cigarettes after the high exercise condition, there were no differences in plasma nicotine levels following the smoking of a usual-brand cigarette 35 min later. The sustained effects of the two exercise conditions were also similar: plasma cotinine levels 24 hr later (reflecting nicotine intake over the entire exercise day) revealed no significant differences between hight and low exercise.
    Materialart: Digitale Medien
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  • 10
    ISSN: 1573-3521
    Schlagwort(e): cardiovascular reactivity ; concurrent relaxation training ; nonconcurrent relaxation training ; stress
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract Eight patients in a cardiac rehabilitation program, after exposure to two psychological stressors approximately equivalent with respect to cardiovascular reactivity, were given nonconcurrent progressive muscle relaxation training and retested for reactivity. They were then provided with relaxation training concurrently with one of the stressors and exposed again to the two stressors. No significant effects for nonconcurrent progressive muscle relaxation training were detected. Concurrent training, in contrast, produced reductions in both systolic and diastolic blood pressure. Reductions resulting from training on the target stressor showed little tendency to generalize to the nontarget stressor; the discrimination was particularly well defined for systolic blood pressure. We conclude that muscle relaxation techniques are maximally effective in reducing reactivity to psychological stressors when relaxation training is provided concurrently with the stressor. Our findings further suggest that to inculcate the relaxation response reliably across different situations, specific training to enhance generalization may be needed.
    Materialart: Digitale Medien
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