“…Many patients with chronic pancreatitis report symptoms that are associated with a decrease in cognitive function, such as depressive symptoms (Gallassi, Morreale, & Pagni, 2001;Gomez et al, 2006;Oosterman, Derksen, van Wijck, Veldhuijzen, & Kessels, 2011), sleep disturbances (Goel, Rao, Durmer, & Dinges, 2009) and the use of opioid medication (Sjogren, Thomsen, & Olsen, 2000).…”