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Examining impulsivity as an endophenotype using a behavioral approach: a DRD2 TaqI A and DRD4 48-bp VNTR association study

Dan TA Eisenberg* email, James MacKillop* email, Meera Modi email, Joshua Beauchemin email, David Dang email, Stephen A Lisman email, J Koji Lum email and David S Wilson email

Behavioral and Brain Functions 2007, 3:2doi:10.1186/1744-9081-3-2

EIQ version used - Minor correction

Dan T.A. Eisenberg   (21 March 2008)  Northwestern University

An astute reader pointed out a minor point of confusion in the manuscript. The Eysenck Impulsivity measure (EIQ) used in this manuscript is that of the 1978 citation:

Eysenck SBG, Eysenck HJ: Impulsiveness and Venturesomeness - Their Position in a Dimensional System of Personality Description. Psychol Rep 1978, 43(3):1247-1255.

We did not use the specific EIQ measure in the other citation: Eysenck SBG, Pearson PR, Easting G, Allsopp JF: Age Norms for Impulsiveness, Venturesomeness and Empathy in Adults. Pers Individ Dif 1985, 6(5):613-619.

Hope that clears up any confusion.

Dan Eisenberg

Competing interests

I have no competing interests to declare.

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