Object discrepancy modulates feature prediction across eye movements

Köller CP, Poth CH, Herwig A (2018)
Psychological Research 84(1): 231-244.

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Abstract / Bemerkung
Object perception across saccadic eye movements is assumed to result from integrating two information sources: incoming peripheral object information and information from a foveal prediction (Herwig and Schneider, J Exp Psychol Gen 143(5):1903–1922, 2014, Herwig, J Vis 15(16), 7, 2015). Predictions are supposed to be based on transsaccadic associations of peripheral and foveal object information. The main function of these predictions may be to conceal discrepancies in resolution and locations across saccades. Here we ask how predictions are affected by discrepancies between peripheral and foveal objects. Participants learned unfamiliar transsaccadic associations by making saccades to objects whose shape systematically changed during the saccade. Importantly, we manipulated the size of this change between participants to induce different magnitudes of object discrepancy. In a subsequent test, we found that judgment shifts of peripheral shape perception toward the predicted foveal input depended on change size during acquisition. Specifically, the contribution of prediction decreased for large changes but did not reach zero, showing that even for large changes (i.e., square to circle or vice versa) the prediction was not ignored completely. These findings indicate that object discrepancy during learning determines how much the resulting foveal prediction contributes to perception in the periphery.
Erscheinungsjahr
2018
Zeitschriftentitel
Psychological Research
Band
84
Ausgabe
1
Seite(n)
231-244
ISSN
0340-0727
eISSN
1430-2772
Page URI
https://pub.uni-bielefeld.de/record/2917131

Zitieren

Köller CP, Poth CH, Herwig A. Object discrepancy modulates feature prediction across eye movements. Psychological Research. 2018;84(1):231-244.
Köller, C. P., Poth, C. H., & Herwig, A. (2018). Object discrepancy modulates feature prediction across eye movements. Psychological Research, 84(1), 231-244. doi:10.1007/s00426-018-0988-5
Köller, C. P., Poth, C. H., and Herwig, A. (2018). Object discrepancy modulates feature prediction across eye movements. Psychological Research 84, 231-244.
Köller, C.P., Poth, C.H., & Herwig, A., 2018. Object discrepancy modulates feature prediction across eye movements. Psychological Research, 84(1), p 231-244.
C.P. Köller, C.H. Poth, and A. Herwig, “Object discrepancy modulates feature prediction across eye movements”, Psychological Research, vol. 84, 2018, pp. 231-244.
Köller, C.P., Poth, C.H., Herwig, A.: Object discrepancy modulates feature prediction across eye movements. Psychological Research. 84, 231-244 (2018).
Köller, Cassandra Philine, Poth, Christian H., and Herwig, Arvid. “Object discrepancy modulates feature prediction across eye movements”. Psychological Research 84.1 (2018): 231-244.

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