title: Platelet monoamine oxidase activity and other markers of monoaminergic systems in predicting impulsivity and risk-taking behaviour
reg no: ETF5450
project type: Estonian Science Foundation research grant
subject: 5. Social Sciences
status: accepted
institution: TU Faculty of Social Sciences
head of project: Jaanus Harro
duration: 01.01.2003 - 31.12.2006
description: This projects aims at capitalising on the methological basis and database established during the previous grant period (1999-2002) and on the additional databases to be formed in 2003-2006 in order to answer the following research questions: a) which are the risk-taking behaviours associated with low platelet MAO activity and which are not; b) whether platelet MAO activity is associated with one or several facets of impulsivity; c) whether higher than average platelet MAO is related to personality or behavioural choice-making, when the directly inhibitory effect of tobacco smoke on enzyme activity is under control; d) whether platelet MAO activity can be changing during lifetime; e) if yes, which changes in lifestyle are associated with such a change; f) and whether in such a case there is any corresponding change in personality; g) how big is the role of the intron 13 polymorphism in the transcription factor AP-2ß gene in the regulation of platelet MAO activity; h) which other transcription factors could be regulating platelet MAO activity; i) whether the neurotrophic factor BDNF in platelets is regulating platelet MAO activity; j) and whether BDNF could serve as the factor regulating the activity of serotonergic neurons; k) whether the exon 3 polymorphism in dopamine D4 receptor gene is associated with the individual variability of platelet MAO activity.

Each part of this project will give a response to a basic question in biological psychology. Several graduate students will carry our research for their thesis within this framework. The new knowledge will contribute to the understanding of behavioural choice-making and the collective role of heredity and environment in this, thus suggesting novel ideas how to prevent hazardous behaviour.

project group
no name institution position  
1.Marika EllerUniversity of Tarturesearcher 
2.Jaanus HarroTU Faculty of Social Sciencesprofessor 
3.Evelyn KiiveTartu Universitylecturer (0.5)