Genetic and Environmental Influences on Semantic Verbal Fluency Across Midlife and Later Life Daniel E. GustavsonMatthew S. Panizzonfor the IGEMS Consortium Original Research 06 February 2021 Pages: 99 - 109
Genetic Correlates of Psychological Responses to the COVID-19 Crisis in Young Adult Twins in Great Britain Kaili RimfeldMargherita MalanchiniRobert Plomin Original Research Open access 24 February 2021 Pages: 110 - 124
The Role of Remembered Parenting on Adult Self-Esteem: A Monozygotic Twin Difference Study Riley L. MarshallColin R. HarbkeLisabeth Fisher DiLalla Original Research 01 January 2021 Pages: 125 - 136
Heteropaternal Siblings Misclassified as Dizygotic Twins: A Potential Biasing Factor for Heritability Estimates? Ian A. SilverJoseph L. NedelecHolly Lonergan Original Research 05 January 2021 Pages: 137 - 143
What Do People Know About the Heritability of Sleep? Juan J. Madrid-ValeroRobert ChapmanAlice M. Gregory Original Research 23 January 2021 Pages: 144 - 153
Direct and Indirect Effects of Maternal, Paternal, and Offspring Genotypes: Trio-GCTA Espen Moen EilertsenEshim Shahid JamiEivind Ystrom Original Research 02 January 2021 Pages: 154 - 161
Correction to: Effects of Environmental Stress and Gender on Associations among Symptoms of Depression and the Serotonin Transporter Gene Linked Polymorphic Region (5-HTTLPR) Beverly H. BrummettStephen H. BoyleRedford B. Williams Correction 21 December 2020 Pages: 162 - 162
Correction to: 5-HTTLPR and Gender Moderate Changes in Negative Affect Responses to Tryptophan Infusion Beverly H. BrummettChristopher L. MullerAllison Ashley-Koch Correction 16 December 2020 Pages: 163 - 163