Skip to main content
. Author manuscript; available in PMC: 2017 Feb 22.
Published in final edited form as: J Cogn Neurosci. 2014 Apr 16;26(10):2262–2274. doi: 10.1162/jocn_a_00648

Figure 4.

Figure 4

Effect of selective attention in the nociceptive-visual experiment (experiment 2). A. The left graph represents the noise-subtracted EEG amplitude spectrum (μV) of the nociceptive SS-EP, averaged across all subjects and all scalp electrodes in the ‘attend nociceptive’ (black waveform) and ‘attend visual’ (grey waveform) conditions. The right graph displays the single-subject differences between the magnitudes of the nociceptive SS-EPs obtained in the ‘attend nociceptive’ and ‘attend visual’ conditions (noise-subtracted signal amplitude measured at 6 Hz). Note that the amplitude of the nociceptive SS-EP was consistently greater in the ‘attend nociceptive’ condition as compared to the ‘attend visual’ condition. B. The left graph represents the noise-subtracted EEG amplitude spectrum (μV) of the visual SS-EP, averaged across all subjects and all scalp electrodes in the ‘attend nociceptive’ (black waveform) and ‘attend visual’ (grey waveform) conditions. The right graph displays the single-subject differences between the magnitudes of the nociceptive SS-EPs obtained in the ‘attend visual’ and ‘attend nociceptive’ conditions (noise-subtracted signal amplitude measured at 8.2 Hz). Note that the amplitude of the visual SS-EP was consistently greater in the ‘attend visual’ condition as compared to the ‘attend nociceptive’ condition.