Illusory conjunctions in the time domain and the resulting time-course of the attentional blink.
Illusory conjunctions in the time domain are errors made in binding stimulus features presented In the same spatial position in Rapid Serial Visual Presentation (RSVP) conditions. Botella, Barriopedro, and Suero (2001) devised a model to explain how the distribution of responses originating from stimuli around the target in the series is generated. They proposed two routes consisting of two sequential attempts to make a response. The second attempt (sophisticated guessing) is only employed if the first one (focal attention) fails in producing an integrated perception. This general outline enables specific predictions to be made and tested related to the efficiency of focal attention in generating responses in the first attempt. Participants had to report the single letter in an RSVP stream of letters that was presented in a previously specified color (first target, T1) and then report whether an X (second target, T2) was or was not presented. Performance on T2 showed the typical U-shaped function across the T1-T2 lag that reflects the attentional blink phenomenon. However, as was predicted by Botella, Barriopedro, and Suero's model, the time-course of the interference was shorter for trials with a correct response to T1 than for trials with a T1 error. Furthermore, longer time-courses of interference associated with pre-target and post-target errors to the first target were indistinguishable.
Botella
Juan
J
Facultad de Psicología, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain. juan.botella@uam.es
Arend
Isabel
I
Suero
Manuel
M
D001288:Attention; D001767:Blinking; D006801:Humans; D007088:Illusions; D011897:Random Allocation; D013028:Space Perception; D013998:Time Perception; D014796:Visual Perception