Skip to main content
Fig. 2 | BMC Psychiatry

Fig. 2

From: Maternal antenatal anxiety and electrophysiological functioning amongst a sub-set of preschoolers participating in the GUSTO cohort

Fig. 2

a Pre-condition Block. In the Pre-condition, an attention grabber is first presented on the screen. When the experimenter forwards the paradigm, a “squawk” sound is played 500 ms before displaying the happy or angry actor on an orange or purple background. The child was required to push a “happy” or “angry” button on the keyboard depending on the stimulus. Actor A was depicted looking happy and Actor B was depicted looking angry. Depicted images and colors are for presentation purposes only. The attention grabber used was an image from a popular children’s TV; the faces used were from the NimStim, though these stimuli are not presented in this manuscript, in keeping with the NimStim authors’ instructions to limit use for testing purposes. b Post-condition Block. The Post-condition is similar to the Pre-condition. However, the actors’ expressions are now swapped for the majority of the 78 post-condition trials. That is, for most trials the actor that previously appeared angry (here, Actor B) was shown looking happy and the actor that previously looked happy (here, Actor A) was shown looking angry. However, to maintain task demands, the pre-condition emotional expressions were displayed 12 times during the post-condition (4 times per block). Depicted images and colors are for presentation purposes only. The attention grabber used was an image from a popular children’s TV; the faces used were from the NimStim, though in keeping with the NimStim authors’ instructions to limit use for testing purposes NimStim images are not presented here

Back to article page