S-ketamine influences strategic allocation of attention but not exogenous capture of attention

Autor(en)

Isabella Fuchs, Ulrich Ansorge, Christoph Huber-Huber, Anna Hoflich, Rupert Lanzenberger

Abstrakt

We investigated whether s-ketamine differentially affects strategic allocation of attention. In Experiment 1, (1) a less visible cue was weakly masked by the onsets of competing placeholders or (2) a better visible cue was not masked because it was presented in isolation. Both types of cue appeared more often opposite of the target (75%) than at target position (25%). With this setup, we tested for strategic attention shifts to the opposite side of the cues and for exogenous attentional capture toward the cue's side in a short cue-target interval, as well as for (reverse) cueing effects in a long cue-target interval after s-ketamine and after placebo treatment in a double-blind within-participant design. We found reduced strategic attention shifts after cues presented without placeholders for the s-ketamine compared to the placebo treatment in the short interval, indicating an early effect on the strategic allocation of attention. No differences between the two treatments were found for exogenous attentional capture by less visible cues, suggesting that s-ketamine does not affect exogenous attentional capture in the presence of competing distractors. Experiment 2 confirmed that the competing onsets of the placeholders prevented the strategic cueing effect. Taken together, the results indicate that s-ketamine affects strategic attentional capture, but not exogenous attentional capture. The findings point to a more prominent role of s-ketamine during top-down controlled forms of attention that require suppression of automatic capture than during automatic capture itself.

Organisation(en)

Institut für Psychologie der Kognition, Emotion und Methoden

Externe Organisation(en)

Medizinische Universität Wien

Journal

Consciousness and Cognition

Band

35

Seiten

282-294

Anzahl der Seiten

13

ISSN

1053-8100

DOI

https://doi.org/10.1016/j.concog.2015.01.009

Publikationsdatum

09-2015

Peer-reviewed

Ja

ÖFOS 2012

501001 Allgemeine Psychologie

Schlagwörter

ASJC Scopus Sachgebiete

Experimental and Cognitive Psychology, Developmental and Educational Psychology

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/sketamine-influences-strategic-allocation-of-attention-but-not-exogenous-capture-of-attention(19015693-d6bf-454e-9303-1e060ea663d0).html