TESTED PAW PREFERENCE IN 591 MICE FROM 7 HIGHLY INBRED STRAINS AND 2 HYBRID CROSSES. CONSISTENCY OF PREFERENCE OVER TIME AND GRIP STRENGTH WERE ASSESSED. SS EXHIBITED RELIABLE FUNCTIONAL LATERALITY AND INDIVIDUAL PREFERENCES WERE ENDURING. BOTH RIGHT AND LEFT PAW PREFERENT SS WERE OBSERVED WITHIN EACH OF THE 9 GENETICALLY UNIFORM GROUPS. 1/2 THE SS IN C57BL/6J AND DBA/2J STRAINS WERE DEXTRAL, AND 1/2, SINISTRAL. THIS INDICATES THAT MAXIMAL VARIATION IN LATERALIZATION MAY EXIST IN POPULATIONS POSSESSING MINIMAL GENETIC VARIANCE, AND SUGGESTS THAT HAND PREFERENCE IS NOT DETERMINED BY HEREDITARY FACTORS.(PsycINFO Database Record (c) 2017 APA, all rights reserved)