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. 2013 May 13;2:675–683. doi: 10.1016/j.nicl.2013.05.001

Table 3.

Stepwise LDA results.

Wilks λ χ2 Significance level Classification accuracy
Input based on areas showing a ‘group’ × ‘valence contrast’ interaction
All contrasts before cluster threshold correction
  • VLPFC (neu–neg)

  • VLPFC (pos–neu)

  • Dorsal cingulate gyrus (neu–neg)

  • Dorsal cingulate gyrus (pos–neg)

0.067 37.067 p < 0.001 100%
All contrasts after cluster threshold correction
  • MFG (pos–neu)

  • IPL (pos–neu)

  • VLPFC (neu–neg)

0.159 26.768 p < 0.001 100%



Input based on areas showing a main effect of valence
All contrasts after cluster threshold correction
  • Caudate nucleus (neu–neg)

  • DMPFC (pos–neg)

0.477 11.094 p = 0.004 100%

VLPFC = ventrolateral prefrontal cortex, MFG = middle frontal gyrus, IPL = intraparietal lobule, DMPFC = dorsomedial prefrontal cortex.