The Twin Adolescent (TA) Study is investigating the "Genetics of
Laterality, Health and Wellbeing, Personality, Smell Sensitivity, Taste
Sensitivity and Reading".
The study consists of three parts.
1) Self report questionnaire
2) Smell and taste tests
3) reading task
To advance understanding of the genetic basis of the following behavioural
*Laterality (Annett Handedness Questionnaire, Footedness and Eyeness
*Personality (NEO PI-R)
*Olfactory function (National Geographic Smell Test (1986), Brief Smell
Identification Test (Sensonics, Inc)
*Taste perception (Monell Taste Test , n-propylthiouracil (PROP))
*Attitudes towards parenting (added November 2002)
An approach pack will be sent to 1,000 plus twin pairs (half identical
(monozygotic (MZ)), half non-identical (dizygotic (DZ))) aged 12-25 years of
age inviting them to participate. The approach pack contained a letter
describing the study, a self-report questionnaire, a reading list in a sealed
envelope, smell identification and taste tests. A follow-up phone call is
made by a trained research interviewer within two weeks of the pack being
mailed out. The primary purpose of the follow up call was to administer the
The QIMR Human Research Ethics Committee (HREC) gave human ethics approval
for the study (P481) on 2nd July 2002. HREC Mtg 28/6/02 **E-application (H0206-029 [P481] ).
Professor Nick Martin, QIMR
Dr Margie Wright, QIMR
Mark Wainwright (PhD Student)
Sarah Medland (PhD Student)
Romana Leisser (PhD Student)
Professor Max Coltheart, PhD, DSc. Macquarie Centre for Cognitive Science,
MacQuarie University, NSW.
Dr Anne Castles. Macquarie Centre for Cognitive Science, Macquarie University, NSW.
Dr Timothy Bates. Centre for Cognitive Science, Macquarie University, NSW.
Dr Danielle R Reed. Monell Chemical Senses Center,
Dr Paul Breslin. Monell Chemical Senses Centre, Philadelphia, PA.