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. Author manuscript; available in PMC: 2018 Jul 1.
Published in final edited form as: Headache. 2017 Jun 19;57(7):1051–1064. doi: 10.1111/head.13121

Figure 3. Brain Structure Measurements that Contributed to the Data-Driven Sub-classification of Migraine.

Figure 3

Measurements of brain cortical surface area, cortical thickness, and regional volumes significantly contributed to the automated sub-classification of brain MRIs. Seven factors contributed to the model including: 2 factors composed of a combination of 14 surface area measures; 3 factors composed of a combination of 20 cortical thickness measures; and 2 factors composed of a combination of 14 volume measures. “Loading” is a measurement of how much an individual brain structural feature contributed to the classification.