Dissociation of explicit and implicit responses during a change blindness task in schizophrenia.

Background: Patients with schizophrenia are abnormally disturbed by information onsets, which may result in a disadvantage in filtering relevant information. The paradigm of change blindness offers the interesting possibility of studying sensitivity to the sudden irruption of visual information with ecological stimuli in schizophrenia. An increased attentional capture by the irruption of visual information would suggest better performance in patients than in healthy controls.

Statistical analysis of "looked-but-failed-to-see" accidents: highlighting the involvement of two distinct mechanisms.

Circumstances where "looked-but-failed-to-see" accidents arise are a particular subject of study. In order to better understand why normal drivers could miss a relevant event signaling danger, more than 500 accidents were analyzed in-depth with regard to driver-environment-goal interactions. Results show four typical situations that imply two distinct mechanisms.