Summary
Verbal material was presented to 28 Ss for reproduction in the dichotic-listening-method in order to analyse the laterality effect. The distribution of attention as well as the sequence of reproduction of the items was varied through different instruction.
The results are as follows:
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1.
We succeeded in replicating the laterality effect reported in literature.
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2.
Reproduction performance from the left as well as from the right increases significantly in that part of the experiment in which S pays attention to one side only.
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3.
In spite of this increase in reproduction performance on both sides a significant laterality difference could also be shown in this particular situation.
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4.
This effect was not influenced by the lenght of our experiment.
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5.
When reproducing with attention focused on the items arriving at the left ear, Ss are less able to filter out items arriving simultanously at the right ear; right ear items are remembered and reproduced in this situation more often than left ear items in the opposite experimental situation.
Zusammenfassung
Mit der Dichotic-Listening-Methode wurde 28 Vpn verbales Material zur Reproduktion dargeboten, um den in der Literatur vielfach diskutierten Lateralitätseffekt zu analysieren. Die Aufmerksamkeitsverteilung wie auch die Reproduktionsabfolge der Items wurde durch Instruktion variiert.
Die Ergebnisse sind folgende:
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1.
Der in der Literatur bekannte Lateralitätseffekt konnte repliziert werden.
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2.
Die Reproduktionsleistung steigt sowohl von rechts wie von links in dem Teil des Versuchs signifikant an, in welchem die Aufmerksamkeit durch spezifische Instruktion nur auf eine Seite gerichtet ist.
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3.
Trotz des Anstiegs der Reproduktionsleistung auf beiden Seiten konnte ein signifikanter Lateralitätseffekt auch in dieser Situation noch gesichert werden.
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4.
Dieser Effekt ist auch nicht durch eine Übungsphase in der hier verwendeten Länge auszuschließen.
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5.
Bei der Reproduktion bei gerichteter Aufmerksamkeit „nur von links“ wird signifikant häufiger als in der entsprechenden Situation „nur von rechts“ die „Abschirmung“ durchbrochen, d.h. von der anderen (rechten) Seite eingelaufene Reize mit erinnert und angesagt.
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Mainka, G., Hörmann, H. Genügt der Begriff „Aufmerksamkeit“ zur Erklärung des sogenannten Lateralitätseffekts ?. Psychol. Forsch. 34, 295–311 (1971). https://doi.org/10.1007/BF00424729
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DOI: https://doi.org/10.1007/BF00424729