Perception of successive targets presented in invariant-item streams
2005 (English)In: Acta Psychologica, ISSN 0001-6918, E-ISSN 1873-6297, Vol. 120, no 1, 19-34 p.Article in journal (Refereed) Published
When two successive, spatially overlapping, targets (S1 and S2) are presented on a blank background, S2 typically dominates in explicit perception. We tested whether S2 dominance is also found for the conditions of presenting S1 and S2 in a stream of irrelevant objects. Successive target letters were presented within a stream of invariant stimulus items (capital Is). The stream items were presented either as a perceptually continuous object where both type and token appeared invariant (60-Hz stream) or as a flickering stream of successive replicas of the invariant stationary object where the type appeared invariant but the token appearance seemed intermittent (20-Hz condition). Compared to the control condition where targets were presented on a blank background we found that (1) recognition rate was lower for targets embedded in a perceptually continuous type-and-token object (60 Hz), but was unchanged for targets in a perceptually flickering sequence of the invariant-object tokens (20 Hz); (2) S1 recognition rate was higher compared to S2 recognition rate within the first epoch of stream (0-150 ms) while within the later stream-epochs S2 dominated over S1 as usual; (3) the overall difference in recognition rates between S1 and S2 was decreased. The results are discussed in the theoretical context of visual masking and attentional blink.
Place, publisher, year, edition, pages
Elsevier, 2005. Vol. 120, no 1, 19-34 p.
Visual masking, Object recognition, RSVP, Attentional blink, Type and token
Psychology (excluding Applied Psychology)
Research subject Natural sciences; Humanities and Social sciences
IdentifiersURN: urn:nbn:se:his:diva-12197DOI: 10.1016/j.actpsy.2005.02.007ISI: 000231644900002PubMedID: 15876418ScopusID: 2-s2.0-23844470156OAI: oai:DiVA.org:his-12197DiVA: diva2:925642