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The Publisher would like to apologise to the authors for a number of errors that appeared in the article referenced below [1].

On page 52, left column, line 4, the end of the first sentence should read ‘. . . because the geometrical pattern and the valence category of the emotional picture were fixed (e.g. a circle, pleasant; a triangle, neutral; a square, unpleasant).’

On page 52, left column, the sentence starting on line 11 should read ‘The task consisted of 16 blocks, each of which were preceded by an instruction slide informing the subject as to whether the condition was expected or unexpected.’

On page 53, a number of errors appeared in Table 1. The corrected table is reproduced below.

Table 1
Table 1:
Significant activation during the delay period of each category of emotional picture in the expected condition compared to the delay period in the unexpected condition.

On page 54, Figure 2 should have appeared in colour. The correct figure and caption is reproduced below.

Fig. 2
Fig. 2:
Statistical parametric maps of brain regions (in the second level group analysis for the 15 subjects) showing significant increases in BOLD contrast associated with the delay period (a,b: pleasant, c–e: unpleasant) in the expected condition compared to the delay period in the unexpected condition at a statistical threshold of p < 0.001 (uncorrected) at the single voxel level and p < 0.05 (corrected) at the cluster level. Clusters of activation were overlaid onto a T1 weighted anatomical magnetic resonance image. (a) Activation in the left middle frontal gyrus. (b) Activation in the left superior frontal gyrus. (c) Activation in the right inferior frontal gyrus. (d) Activation in the right amygdala. (e) Activation in the left anterior cingulate. (f,g) The BOLD signal time courses for the pre and post warning stimulus within the clusters in which there was significant activation during the expected condition (f: pleasant, g: unpleasant). MFG, middle frontal gyrus; SFG, superior frontal gyrus; IFG, inferior frontal gyrus. Error bars indicate s.e.m.


1. Ueda K, Okamoto Y, Okada G, Yamashita H, Hori T and Yamawaki S. Brain activity during expectancy of emotional stimuli: an fMRI study. Neuroreport 14, 51–55 2003.
© 2003 Lippincott Williams & Wilkins, Inc.