title: Hemispheric asymmetries of a motor memory in a recognition test after learning a movement sequence.
abstract: Two experiments utilizing a spatial-temporal movement sequence were designed to determine if the memory of the sequence is lateralized in the left or right hemisphere. In Experiment 1, dominant right-handers were randomly assigned to one of two acquisition groups: a left-hand starter and a right-hand starter group. After an acquisition phase, reaction time (RT) was measured in a recognition test by providing the learned sequential pattern in the left or right visual half-field for 150ms. In a retention test and two transfer tests the dominant coordinate system for sequence production was evaluated. In Experiment 2 dominant left-handers and dominant right-handers had to acquire the sequence with their dominant limb. The results of Experiment 1 indicated that RT was significantly shorter when the acquired sequence was provided in the right visual field during the recognition test. The same results occurred in Experiment 2 for dominant right-handers and left-handers. These results indicated a right visual field left hemisphere advantage in the recognition test for the practiced stimulus for dominant left and right-handers, when the task was practiced with the dominant limb.
authors.affiliation: Saarland University, Im Stadtwald B8.2, D-66041 Saarbrücken, Germany. Electronic address: p.leinen@mx.uni-saarland.de.
authors.forename: Peter
authors.initials: P
authors.lastname: Leinen
authors.affiliation: Saarland University, Im Stadtwald B8.2, D-66041 Saarbrücken, Germany. Electronic address: s.panzer@mx.uni-saarland.de.
authors.forename: Stefan
authors.initials: S
authors.lastname: Panzer
authors.affiliation: Texas A&M University, Department of Health and Kinesiology, Texas A&M University College Station, TX 77843-4243, United States. Electronic address: CSHEA@TAMU.EDU.
authors.forename: Charles H
authors.initials: CH
authors.lastname: Shea
mesh_terms: D005133:Eye Movements / Q000502:physiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D021641:Recognition, Psychology / Q000502:physiology*; D012691:Serial Learning / Q000502:physiology*; D014163:Transfer, Psychology / Q000502:physiology; D014794:Visual Fields; D055815:Young Adult
keywords: Lateralization; Recognition; Representation; Sequence learning