Dear all,<div>I'm new to FSL and I have a quick question:</div><div>I'd like to perform a cluster-based correction with a F contrast (with a cluster-defining threshold of p &lt; 0.01, i.e. z &gt; 2.3) and I tried -F 2.3 but it seemed to be wrong.</div><div>How should I define the threshold for the F contrasts for cluster-based correction?</div><div>Thanks a lot!</div><div>Best regards,</div><div>Bin Liu</div>