E. D. Bruin

Black tea improves attention and self-reported alertness

J. Rycroft, L. V. Buren, M. Rowson, 2011, Appetite.

Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task

John J. Foxe, Simon P. Kelly, S. Kelly, 2012, Neuropharmacology.

l-Theanine and caffeine improve task switching but not intersensory attention or subjective alertness

Vanessa E. G. Martens, Suzanne J. L. Einöther, J. Rycroft, 2010, Appetite.

Relationships between tea and other beverage consumption to work performance and mood

J. Bryan, Suzanne J. L. Einöther, M. Tuckey, 2012, Appetite.

Attention Benefits of Tea and Tea Ingredients

Suzanne J. L. Einöther, T. Giesbrecht, L. V. Buren, 2013 .

Psychopharmacology of theobromine in healthy volunteers

A. Palmer, M. Baggott, H. Wit, 2013, Psychopharmacology.

Age-related differences in brain activity during extended continuous word recognition in children

Jan W. Van Strien, Johanna C. Glimmerveen, Vanessa E. G. Martens, 2009, NeuroImage.

Consumption of a mid-morning snack improves memory but not attention in school children

S. Muthayya, A. Kurpad, K. Srinivasan, 2007, Physiology & Behavior.