Linmin Zhang and Liina Pylkkänen have a new paper out in Psychonomic bulletin & review on the neural processing of the functional adjectives same and different.

Zhang, L., & Pylkkänen, L. (2018). Composing lexical versus functional adjectives: Evidence for uniformity in the left temporal lobe. Psychonomic bulletin & review, 1-14. https://link.springer.com/content/pdf/10.3758/s13423-018-1469-y.pdf