Schwartz, C. E., Wright, C. I., Shin, L. M., Kagan, J., Whalen, P. J., McMullin, K. G., & Rauch, S. L. (2003). Differential amygdalar response to novel versus newly familiar neutral faces: A functional MRI probe developed for studying inhibited temperament. Biological Psychiatry, 53(10), 854-862. https://doi.org/10.1016/S0006-3223(02)01906-6

Schwartz, Carl E., Christopher I. Wright, Lisa M. Shin, Jerome Kagan, Paul J. Whalen, Katherine G. McMullin, and Scott L. Rauch. "Differential Amygdalar Response to Novel Versus Newly Familiar Neutral Faces: A Functional MRI Probe Developed for Studying Inhibited Temperament." Biological Psychiatry 53, no. 10 (2003): 854-862. https://doi.org/10.1016/S0006-3223(02)01906-6.

Schwartz, Carl E., et al. "Differential Amygdalar Response to Novel Versus Newly Familiar Neutral Faces: A Functional MRI Probe Developed for Studying Inhibited Temperament." Biological Psychiatry, vol. 53, no. 10, 2003, pp. 854-862, https://doi.org/10.1016/S0006-3223(02)01906-6.