eCite Digital Repository

Three versus six sessions of Computer-aided vicarious exposure treatment for Spider Phobia


Fraser, JM and Kirkby, KC and Daniels, BA and Gilroy, L and Montgomery, IM, Three versus six sessions of Computer-aided vicarious exposure treatment for Spider Phobia, Behaviour Change, 18, (No. 4) pp. 213-224. ISSN 0813-4839 (2001) [Refereed Article]

DOI: doi:10.1375/bech.18.4.213


Thirty participants diagnosed with specific phobia (spiders) were randomly allocated to receive a treatment dose of either three or six 45-minute sessions of a computer-aided vicarious exposure (CAVE) for spider phobia. Phobic symptom severity was measured at pretreatment, post-treatment and at one-month follow-up on a range of subjective and behavioural meausres. Results showed that participants in both groups improved significantly across the majority of outcome measures from pre- to posttreatment and pretreatment to follow-up assessment. There were no significant differences between the three- and six-session groups. Process measures indicated that the six-session treatment group performed approximately twice as a much vicarious exposure, however, competence on the program was reached by the end of three sessions. These results suggest that rehearsal of CAVE, beyond the level at which skill learning is consolidated, is not of therapeutic values. Further research is required to ascertain whether other forms of dosage effect may operate in computer-delivered behaviour therapy. For example, delivery of a wider range, rather than amount, of CAVE scenarios, or the delivery of a hierarchy of exposure stimuli on the screen, without a vicarious component, may show a dose-response relationship.

Item Details

Item Type:Refereed Article
Research Division:Health Sciences
Research Group:Health services and systems
Research Field:Mental health services
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Mental health
UTAS Author:Fraser, JM (Miss Jillian Maree Fraser)
UTAS Author:Kirkby, KC (Professor Kenneth Kirkby)
UTAS Author:Daniels, BA (Dr Brett Daniels)
UTAS Author:Gilroy, L (Ms Lisa Gilroy)
UTAS Author:Montgomery, IM (Dr Iain Montgomery)
ID Code:24151
Year Published:2001
Web of Science® Times Cited:12
Deposited By:Psychiatry
Deposited On:2002-08-01
Last Modified:2002-11-20

Repository Staff Only: item control page