Table 3. Relationship between cortical thickness and Creative Ability Test performance.

Measures of divergent thinking	Brain area	Side	Talairach coordinates*			Size(mm2)	t max
			x	y	z
CAT fluency 1
	Lateral Occipital Cortex	left	−41.2	−75.2	−2.5	118.2	5.48
	Postcentral Gyrus	left	−37.5	−33.7	62.2	46.4	4.61
CAT originality
	Lingual Gyrus	left	−18.7	−75.8	−9.2	398.0	5.03
	Lateral Occipital Cortex	left	−28.4	−94.0	−5.2	753.7	4.67
	Superior Parietal Cortex	left	−13.0	−76.4	43.7	78.7	3.90
	Temporal Pole	left	−32.7	8.9	37.7	84.8	3.87
	Enthorinal Cortex	left	−27.8	−17.4	−30.6	49.3	3.63
	Isthmus Cingulate Cortex	left	−5.4	−45.1	30.7	36.2	3.60
	Superior Frontal Gyrus	left	−7.8	29.5	45.3	25.0	3.36
CAT originality with IQ
	Lingual Gyrus	left	−15.5	−78,9	−10.8	484.5	5.00
	Temporal Pole	left	−33.0	10.5	−38.0	143.7	4.21
	Lateral Occipital Cortex	left	−28.5	−94.4	−3.0	580.2	4.16
	Superior Frontal Gyrus	left	−7.4	28.4	45.8	130.4	4.15
	Superior Parietal Cortex	left	−12.5	−76.2	43.5	105.0	4.02
	Isthmus Cingulate Cortex	left	−4.3	−43.2	29.7	53.9	3.72
	Inferior Temporal Cortex	left	−47.3	−63.6	−5.4	20.6	3.46

t _max = t-value of maximum positive correlation between cortical thickness and CAT performance. All regions survive FDR-correction p<0.05 with Total Intracranial Volume, sex and age as nuisance variables. Size (mm²)  =  surface area of the cluster in square millimeters.*Note on Talairach: FreeSurfer does not report true "Talairach" coordinates. The coordinates listed under "Talairach" are actually based on Matthew Brett's 10/8/98 non-linear transform from MNI305 space (see https://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems).

¹ No significant associations after IQ correction.