caa a22 4500 475788478 CHVBK 20180406123705.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/PL00008165 doi (NATIONALLICENCE)springer-10.1007/PL00008165 Patterns, chunks, and hierarchies in serial reaction-time tasks [Elektronische Daten] [Iring Koch, Joachim Hoffmann] The impact of relational structures (i.e., the systematicity of relations between successive items) on incidental sequence learning was investigated in a serial reaction-time (SRT) task while keeping constant the statistical structure. In order to assess the influence of relational structures in stimulus and response sequences separately, the strength of relational patterns in sequences of digits as stimuli and of keystrokes as responses was orthogonally varied. In Exps. 1 and 2, the variation of relational patterns was mainly effective in the keystroke sequence. In Exp. 2, in addition to the variation of relational patterns, the presentation of stimuli was delayed at serial positions that were incongruent with the relational structure. The results show that these incongruent pauses reduced the learning of strongly structured sequences of keystrokes but improved the learning of weakly structured sequences. Experiment 3 suggests that even higher-order relations between elementary patterns are utilized to accelerate responses. The data are interpreted as evidence for the impact of relational patterns, in addition to statistical redundancies, on the formation of chunks. Reasons are discussed for the finding that relational chunking was more pronounced in the keystroke than in the digit sequences. Springer-Verlag Berlin Heidelberg, 2000 Koch Iring Max-Planck-Institut für psychologische Forschung, Leopoldstr. 24, D-80802 München e-mail: iring.koch@mpipf-muenchen.mpg.de, DE aut Hoffmann Joachim Department of Psychology, University of Würzburg, Röntgenring 11, D-97070, Würzburg, Germany e-mail: hoffmann@psychologie.uni-wuerzburg.de, DE aut https://doi.org/10.1007/PL00008165 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00008165 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Koch Iring Max-Planck-Institut für psychologische Forschung, Leopoldstr. 24, D-80802 München e-mail: iring.koch@mpipf-muenchen.mpg.de, DE aut NATIONALLICENCE 700 1- Hoffmann Joachim Department of Psychology, University of Würzburg, Röntgenring 11, D-97070, Würzburg, Germany e-mail: hoffmann@psychologie.uni-wuerzburg.de, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer