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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Cue reactivity to appetitive and aversive cues among female smokers and non-smokers

Susabda, Agnes 2009 December 1900 (has links)
This study examined the motivational state associated with smoking craving specifically among women and the effect of deprivation and smoking status on the relationship between responses to appetitive cues. Utilizing both psychophysiological (startle EMG, skin conductance) and self-report measures, we compared cue reactivity to positive, neutral, aversive, smoking, and chocolate pictures among groups of 10 hr. smoking deprived smokers, non-deprived smokers, and non-smokers. Smokers responded to smoking cues similar to pleasant affect cues with more inhibited startle and high arousal, while responses from non-smoking females indicated a neutral state. However, deprivation also significantly increased startle responses to smoking cues when compared to non-deprived smokers. Furthermore, a closer look at skin conductance responses to aversive cues suggest that smoking status (deprived and non-deprived groups) significantly inhibited one?s ability to habituate to negative affect stimuli. When responses to chocolate cues were examined, psychophysiological and self-report data seemed to indicate that smoking deprivation influenced one's ability to attend to other appetitive/rewarding cues. Implications of these results on female smoking craving and sensitivity to appetitive cues are discussed.
2

A Comparison of Measures of Signal-To-Noise Ratio, Jitter, Shimmer, and Speaking Fundamental Frequency in Smoking and Nonsmoking Females

Coy, Kelly (Kelly Bishop) 12 1900 (has links)
Fifteen nonsmoking and fifteen smoking females 19 to 36 years of age were evaluated on measures of signal-to-noise ratio (SNR), jitter, shimmer, and speaking fundamental frequency (F0). The results indicated that: 1) there is a significant difference between female smokers and nonsmokers on measures of SNR, mean, and maximum F0 and, 2) there is no significant difference between female smokers and nonsmokers on measures of jitter, shimmer and minimum F0 . The SNR was found to be a powerful tool which is capable of distinguishing subtle vocal characteristics between the subject groups. It would appear that cigarette smoking may have an impact on the voice before distinct laryngeal pathologies are present.

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