I'm running a Qdec analysis in which I'm looking for correlations between cortical thickness and a continuous CSF measurement.

I'm interested in a specific area in which a cluster of correlation pops up, but doesn't survive cluster-wise correction for multiple comparisons. 
The details of the cluster are the following: 

Contrast: 'rh-Avg-thickness-CSF_protein-Cor', 15fwhm, DOF: 61
ClusterNo: 1   

Max:  3.1156   

VtxMax:  122763  

Size(mm2):  1247.98   

TalX:  19.9

TalY:  -46.6  

TalZ:  -9.0

NVtxs:  2022

Annotation: lingual

I would like to know if there is a way to extract the mean p-value [or, better, -log10(p)] of the uncorrected cluster. 

Thank you very much in advance,

Best, 

Lucia