Logo Logo
Help
Contact
Switch language to German
Vergleich des Geruchsvermögens von Patientinnen mit einer Anorexia nervosa und Normalgewichtigen in Abhängigkeit vom Sättigungszustand
Vergleich des Geruchsvermögens von Patientinnen mit einer Anorexia nervosa und Normalgewichtigen in Abhängigkeit vom Sättigungszustand
The aim of this thesis was to compare the olfactory performance of anorectic patients and healthy controls with regard to the state of satiety. Using the Sniffin’ Sticks, sensitivity to a non-food odor (n-butanol) and to a food-related odor (isoamyl acetate) was assessed in 12 anorectic females and 24 healthy controls. Threshold tests were performed in a hungry as well as in a satiated state, odor discrimination and odor identification only when satiated. Pleasantness of the odors was recorded. In terms of the non-food odor n-butanol, the olfactory sensitivity of anorectic patients and controls did not differ. Patients with anorexia nervosa had a significantly lower detection threshold for the food-related odor, but only in the hungry condition. Anorectic patients showed significant deficits in odor discrimination and identification, and under-evaluated the pleasantness of isoamyl acetate. The results suggest an impaired projection from secondary to tertiary olfactory structures in anorexia nervosa, based upon the dichotomy of performance between detection threshold and odor discrimination/identification. The reduced pleasantness of isoamyl acetate indicates a decreased olfactory responsiveness to food stimuli in anorexia nervosa.
Anorexia nervosa, Sniffin' Sticks, Geruchssinn, Nahrungsaufnahme, Riechschwelle
Schreder, Tatjana
2009
German
Universitätsbibliothek der Ludwig-Maximilians-Universität München
Schreder, Tatjana (2009): Vergleich des Geruchsvermögens von Patientinnen mit einer Anorexia nervosa und Normalgewichtigen in Abhängigkeit vom Sättigungszustand. Dissertation, LMU München: Faculty of Medicine
[thumbnail of Schreder_Tatjana.pdf]
Preview
PDF
Schreder_Tatjana.pdf

1MB

Abstract

The aim of this thesis was to compare the olfactory performance of anorectic patients and healthy controls with regard to the state of satiety. Using the Sniffin’ Sticks, sensitivity to a non-food odor (n-butanol) and to a food-related odor (isoamyl acetate) was assessed in 12 anorectic females and 24 healthy controls. Threshold tests were performed in a hungry as well as in a satiated state, odor discrimination and odor identification only when satiated. Pleasantness of the odors was recorded. In terms of the non-food odor n-butanol, the olfactory sensitivity of anorectic patients and controls did not differ. Patients with anorexia nervosa had a significantly lower detection threshold for the food-related odor, but only in the hungry condition. Anorectic patients showed significant deficits in odor discrimination and identification, and under-evaluated the pleasantness of isoamyl acetate. The results suggest an impaired projection from secondary to tertiary olfactory structures in anorexia nervosa, based upon the dichotomy of performance between detection threshold and odor discrimination/identification. The reduced pleasantness of isoamyl acetate indicates a decreased olfactory responsiveness to food stimuli in anorexia nervosa.