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. Author manuscript; available in PMC: 2008 Feb 20.
Published in final edited form as: Psychophysiology. 2007 Sep 10;44(6):987–990. doi: 10.1111/j.1469-8986.2007.00591.x

Figure 2.

Figure 2

Grand-averaged ERPs elicited in the 900 ms interval following cue onset at lateral posterior electrodes ipsilateral and contralateral to the cued side, for the infrequent and frequent probe conditions. LDAP: Late Directing Attention Positivity. Scalp distribution map of the LDAP showing a maximum over lateral posterior electrode sides in the time interval between 700 and 800 ms (maximum effect) after cue onset. This map represents the difference between ipsi- and contralateral brain activity. It was constructed in the same was as for the ADAN. As a result of the mirroring procedure, the LDAP appears as negative voltage (blue) over the left hemisphere and as positive voltage over the right hemisphere (red). Amplitudes range between from −0.6 and0.6μV; each line represents an increment of 0.1μV.