“…The few existing neuropsychological studies of at-risk children from our laboratory and others have identified significant discrepancies between Verbal and Performance IQ (VIQ > PIQ; Decina et al, 1983;Kestenbaum, 1979;McDonoughRyan et al, 2002), deficiencies in academic achievement (McDonough-Ryan et al, 2002;Quakenbush, Kutcher, Robertson, Boulos, & Chaban, 1996;Sigurdsson, Fombonne, Sayal, & Checkley, 1999), and attentional disturbance (Kron & Kestenbaum, 1988). Consistent with these findings in at-risk children, it has been reported that a small group (N ¼ 7) of unaffected monozygotic twins of adults with BPD were deficient in short-term memory and mental control (Gourovitch et al, 1999).…”