title: Visual field x response hand interactions and level priming in the processing of laterally presented hierarchical stimuli.
abstract: Hemisphere-specific processing of laterally presented global and local stimulus levels was investigated by (a) examining interactions between the visual field of stimulus presentation and the response hand and (b) comparing intra- with inter-hemispheric effects of level priming (i.e. faster and more accurate performance when the target level repeats). Although in Experiment 1, which involved two-choice responses with left and right hands, performance costs occurred when the same hemisphere received the stimulus and controlled the response hand, further analyses suggest that these effects reflect spatial compatibility rather than intra-hemispheric interference. Consistent with the spatial compatibility interpretation, in Experiment 2 a similar visual field x response interaction was obtained with regard to left and right responses given with the same hand. Trial-to-trial level priming occurred in both experiments and was unaffected by the intra-hemispheric sequence of target levels. Implications regarding hemispheric processing mode are discussed.
authors.affiliation: Helmut-Schmidt-University/University of the Federal Armed Forces Hamburg, Holstenhofweg 85, D-22043 Hamburg, Germany. Mike.Wendt@hsu-hh.de
authors.forename: Mike
authors.initials: M
authors.lastname: Wendt
authors.forename: Ina
authors.initials: I
authors.lastname: Vietze
authors.forename: Rainer H
authors.initials: RH
authors.lastname: Kluwe
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D003463:Cues; D005260:Female; D005364:Field Dependence-Independence; D007839:Functional Laterality / Q000502:physiology*; D006225:Hand / Q000502:physiology; D006801:Humans; D008297:Male; D008606:Mental Processes / Q000502:physiology; D009068:Movement / Q000502:physiology; D010364:Pattern Recognition, Visual / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology*; D012016:Reference Values; D014794:Visual Fields / Q000502:physiology*