Evidence for increased background neural noise in migraine with aura: Hyperactive but not hyperresponsive.

There was a marginal effect of group, with a nonsignificant trend toward increased background activity in the migraine group (migraine group mean = −500.01, SE = 122.99, control group mean = −741.88, SE = 126.12, estimated Cohen's d = 0.72, CI, −0.13 to 1.58).

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