FIG. 1. Changes in total haemoglobin for newborn Italian infants. Each infant contributes more than three blocks in each one of the conditions. All blocks are summed across infants. (a) Indicates how the probes were placed over the left and right hemispheres (LH, RH). (b) Results showing the activity recorded over each one of the hemispheres. Darkest grey, forward speech; lightest grey, backward speech; intermediate grey, silence. Reproduced by permission of Peña et al (2003).
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