^aCentre for Pain Research, University of Bath, Bath, United Kingdom

^bDepartment of Psychology, University of Bath, Bath, United Kingdom

Address: Department of Psychology, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom. Tel.: +44(0)1225 383671; fax: +44(0)1225 386752. E-mail address: [email protected] (E. Keogh).

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