ERIC Number: EJ630385
Record Type: CIJE
Publication Date: 2001
Low Cognitive Functioning in Nondemented 80+-Year-Old Twins Is Not Heritable.
Petrill, Stephen A.; Johansson, Boo; Pedersen, Nancy L.; Berg, Stig; Plomin, Robert; Ahern, Frank; McClearn, Gerald E.
Intelligence, v29 n1 p75-83 2001
Studied the genetic influence of low cognitive functioning in 200 pairs of twins aged at least 80 years and identified as not demented. Results suggest that the heritability of low cognitive functioning in this group was nonsignificant, but above-average cognitive functioning shows substantial group heritability. (SLD)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A