Dager, Stephen R., and Matthew E. Layton. "Human Brain Metabolic Response To Caffeine And The Effects Of Tolerance." American Journal Of Psychiatry 156.2 (1999): 229. Academic Search Complete. Web. 24 Oct. 2014.
Haller, Sven, et al. "Acute Caffeine Administration Effect On Brain Activation Patterns In Mild Cognitive Impairment." Journal Of Alzheimer's Disease 41.1 (2014): 101-112. Academic Search Complete. Web. 24 Oct. 2014.
_ _ _. "Acute Caffeine Administration Impact On Working Memory-Related Brain Activation And Functional Connectivity In The Elderly: A BOLD And Perfusion MRI Study." Neuroscience 250.(2013): 364-371. Academic Search Complete. Web. 24 Oct. 2014.
Hammond, D. Corydon. "The Effects Of Caffeine On The Brain: A Review." Journal Of Neurotherapy 7.2 (2003): 79-89. Academic Search Complete. Web. 24 Oct. 2014.
Klaassen, Elissa B., et al. "The Effect Of Caffeine On Working Memory Load-Related Brain Activation In Middle-Aged Males." Neuropharmacology 64.(2013): 160-167. Academic Search Complete. Web. 24 Oct. 2014.
Lage, Ricardo, Carlos Diéguez, and Miguel López. "Caffeine Treatment Regulates Neuropeptide S System Expression In The Rat Brain." NeuroscienceLetters 410.1 (2006): 47-51. AcademicSearch Complete. Web. 24 Oct. 2014.
Nehlig, Astrid. "Coffee, Tea, Chocolate, AndTheBrain / EditedByAstridNehlig." Nutrition, brain, andbehavior ; v. 2. n.p.: Boca Raton, Fla. : CRC Press, c2004., 2004. Agricola. Web. 24 Oct. 2014.
Sanders, Laura. "Mind & Brain: Caffeine Shakes Up Growing Brain: Mice Exposed Before Birth Show Memory Deficits." Science News 184.6 (2013): 12. Academic Search Complete. Web. 24 Oct. 2014.
Temple, Jon G., Joel S. Warm, and William N. Dember. "The Effects Of Signal Salience And Caffeine On Performance, Workload, And Stress In An Abbreviated Vigilance Task." Human Factors 42.2 (2000): 183-194. Applied Science & Technology Full Text (H.W. Wilson). Web. 24 Oct. 2014.