Mixed lateral preference and parental left-handedness: possible markers of risk for PTSD.
Degree of lateral preference (mixed versus consistent), family history of parental left-handedness, and presence of posttraumatic stress disorder (PTSD) were measured in 118 right-handed male U.S. combat veterans. Right-handed participants with mixed lateral preference were more likely to have PTSD than were right-handers with consistent lateral preference. Respondents reporting a left-handed parent were also more likely to have PTSD. Finally, there was a significant difference in the proportion of participants with PTSD for three groups: participants with parental left-handedness and mixed lateral preference (100% PTSD), participants with parental left-handedness or mixed lateral preference (70% PTSD), and participants with neither parental left-handedness nor mixed lateral preference (44% PTSD). These findings suggest the possible usefulness of further examining the relationship between mixed lateral preference, parental left-handedness, and other possible indicators of risk for PTSD.
Chemtob
Claude M
CM
National Center for Posttraumatic Stress Disorder, Pacific Islands Division, 1132 Bishop Street, Suite 307, Honolulu, HI 96813, USA.
Taylor
Kristen B
KB
D015415:Biomarkers; D003130:Combat Disorders / Q000175:diagnosis / Q000453:epidemiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D015994:Incidence; D008297:Male; D010290:Parents; D011569:Psychiatric Status Rating Scales; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D012307:Risk Factors; D012737:Sex Factors; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis / Q000453:epidemiology*; D011795:Surveys and Questionnaires; D014481:United States / Q000453:epidemiology; D014728:Veterans / Q000706:statistics & numerical data
D015415:Biomarkers