“…The IFS discriminate between healthy controls and patients with bvFTD (Torralva et al, 2009 ; Gleichgerrcht et al, 2011 ; Fiorentino et al, 2013 ; Custodio et al, 2016 ), AD (Torralva et al, 2009 ; Gleichgerrcht et al, 2011 ; Moreira et al, 2014 ; Custodio et al, 2016 ), relapsing–remitting multiple sclerosis (Bruno et al, 2015 ), bipolar disorder and ADHD (Baez et al, 2014 ), as well as between clinical conditions, with bvFTD patients scoring lower than those with major depression (Fiorentino et al, 2013 ) and AD (Torralva et al, 2009 ; Custodio et al, 2016 ). Cut-offs have been presented throughout the studies, with overall values of sensitivity and specificity above 70%: 23.5 (Custodio et al, 2016 ) and 25 (Torralva et al, 2009 ) for the detection of dementia, and 17.5 (Custodio et al, 2016 ) and 19 (Torralva et al, 2009 ) for the discrimination between bvFTD and AD patients. In a sample with lower education, Moreira et al ( 2014 ) showed that an optimal cut-off of 17 discriminated between healthy controls from AD patients.…”