Example of pain picture and neutral picture.

<p>Example of pain picture and neutral picture.</p

Means (<i>M</i>), standard deviations (<i>SD</i>) and differences between the groups (<i>t</i>-tests) in age, self-pain ratings, POM ratings and the SPF.

<p><i>Note</i>. <i>POM</i>, <i>Pain of model; SPF</i>, <i>Saarbruecker Persoenlichkeitsfragebogen</i>. Self-pain ratings and POM ratings were each measured on 11-point NRSs (0–10).</p><p>Means (<i>M</i>), standard deviations (<i>SD</i>) and differences between the groups (<i>t</i>-tests) in age, self-pain ratings, POM ratings and the SPF.</p

Correlation of personal distress with the slopes of the BOLD response.

<p>The statistical maps are shown superimposed on the averaged T1-weighted dataset of all subjects. Yellow/orange colours signify positive correlations.</p

One sample t-test against zero for the slopes of the BOLD response (pain pictures > neutral pictures) across the whole sample.

<p>The statistical maps are shown superimposed on the averaged T1-weighted dataset of all subjects. Blue/green colours signify negative slopes of the BOLD response significantly different from zero, i.e. neural habituation.</p

Two sample t-test between the groups’ slopes of the BOLD response (pain exposure versus touch exposure).

<p>The statistical maps are shown superimposed on the averaged T1-weighted dataset of all subjects. Yellow/orange colours signify larger values of the slopes of the BOLD response, i.e. less neural habituation.</p

Correlation of trait fantasy with the slopes of the BOLD response.

<p>The statistical maps are shown superimposed on the averaged T1-weighted dataset of all subjects. Yellow/orange colours signify positive correlations.</p

Stimulation paradigm.

<p>Stimulation paradigm.</p

Scatterplots of correlations.

<p>Behavioural data were z-transformed. As smaller slope values of the BOLD response express stronger habituation, positive correlations between personal distress/fantasy scale and the slopes of the BOLD response indicate that a high occurrence of this trait corresponds to less neural habituation. As smaller slope values for both the BOLD response and POM ratings express stronger habituation, a positive correlation of these variables indicate that a stronger reduction in POM ratings corresponds to stronger neural habituation.</p

Cluster maxima of clusters for which the ratings of trait fantasy correlated with the slopes of the BOLD response across the whole sample (n = 62).

<p>Thresholds are based on cluster-level thresholding with an initial threshold of <i>p</i> < .01 and a cluster threshold of <i>p</i> < .05 (minimum cluster size: 1944 mm³).</p

Cluster maxima of clusters for which the slopes of the BOLD response for the contrast pain > no pain were ≠ 0 (one sample <i>t</i>-test) across the whole sample (n = 62).

<p>All t values were negative, indicating negative slopes and thus habituation. Thresholds are based on cluster-level thresholding with an initial threshold of <i>p</i> < .01 and a cluster threshold of <i>p</i> < .05 (minimum cluster size: 1944 mm³).</p