Fig. 1: Visual oddball paradigm. Participants are presented with a series of greyscale images of faces and outdoor scenes. | Translational Psychiatry

Fig. 1: Visual oddball paradigm. Participants are presented with a series of greyscale images of faces and outdoor scenes.

From: Brain responses to different types of salience in antipsychotic naïve first episode psychosis: An fMRI study

Fig. 1: Visual oddball paradigm. Participants are presented with a series of greyscale images of faces and outdoor scenes.The alternative text for this image may have been generated using AI.

66.6% of those were ‘standard’ images. The remaining 33.4% consisted of four types of rare or contextually deviant events, which were randomly intermixed with the standard stimuli; each occurred with a probability of 8.3%. These deviant events were: neutral stimuli that required a motor response (‘target oddball’); stimuli that evoked a negative emotional response (‘emotional oddball’, angry face or image of car crash); novel stimuli (‘novel oddball’, different neutral images that appear only once); and neutral stimuli (‘neutral oddball’, neutral image of face or scene)

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