Lateral preference in post-traumatic stress disorder

Spivak, Baruch; Segal, Michael M.; Mester, Roberto; Weizman, Abraham

doi:10.1017/s0033291797005837

Cited by 48 publications

(46 citation statements)

References 20 publications

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“…It must also be noted that we found a significant negative correlation between cortisol and strength of lateral bias (independent of direction). This finding is of interest in view of research indicating that mixed handedness occurs at a higher rate in post-traumatic stress disorder patients than in experimental controls, suggesting that hemispheric lateralization is relevant to the pathophysiology of this disorder (Spivak et al 1998). …”

Section: Discussionmentioning

confidence: 73%

Hormonal Correlates of Hand Preference in Free-ranging Primates

Westergaard¹,

Chavanne²,

Lussier³

et al. 2000

Neuropsychopharmacology

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Section: Discussionmentioning

confidence: 73%

Hormonal Correlates of Hand Preference in Free-ranging Primates

Westergaard¹,

Chavanne²,

Lussier³

et al. 2000

Neuropsychopharmacology

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“…Non-right handers, meaning either ambidextrous or left-handed (also referred to as mixed handedness), are more prone than right-handers to suffer from a range of conditions, including schizophrenia [32,33], psychosis [34] and post-traumatic stress disorder [35]. Also, as found in a large sample of 11-year-old children [36], ambidextrous handedness is associated with poorer verbal, nonverbal, reading and mathematical skills compared to either left-or right-handers.…”

Section: Limb Preference and Performancementioning

confidence: 99%

A Matter of Degree: Strength of Brain Asymmetry and Behaviour

Rogers

2017

Symmetry

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Abstract:Research on a growing number of vertebrate species has shown that the left and right sides of the brain process information in different ways and that lateralized brain function is expressed in both specific and broad aspects of behaviour. This paper reviews the available evidence relating strength of lateralization to behavioural/cognitive performance. It begins by considering the relationship between limb preference and behaviour in humans and primates from the perspectives of direction and strength of lateralization. In birds, eye preference is used as a reflection of brain asymmetry and the strength of this asymmetry is associated with behaviour important for survival (e.g., visual discrimination of food from non-food and performance of two tasks in parallel). The same applies to studies on aquatic species, mainly fish but also tadpoles, in which strength of lateralization has been assessed as eye preferences or turning biases. Overall, the empirical evidence across vertebrate species points to the conclusion that stronger lateralization is advantageous in a wide range of contexts. Brief discussion of interhemispheric communication follows together with discussion of experiments that examined the effects of sectioning pathways connecting the left and right sides of the brain, or of preventing the development of these left-right connections. The conclusion reached is that degree of functional lateralization affects behaviour in quite similar ways across vertebrate species. Although the direction of lateralization is also important, in many situations strength of lateralization matters more. Finally, possible interactions between asymmetry in different sensory modalities is considered.

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“…Lateral preference was assessed by self-completion of an inventory consisting of two measures, both used by Spivak et al (1998). First, responses on the Edinburgh Handedness Inventory (EHI; Oldfield, 1971) were scored using the summing method used by Spivak et al (1998) rather than Oldfield's (1971) laterality quotient to give a handedness score (Oldfield10) and laterality score (Oldfield12) including foot and eye preference.…”

Section: Methodsmentioning

confidence: 99%

“…First, responses on the Edinburgh Handedness Inventory (EHI; Oldfield, 1971) were scored using the summing method used by Spivak et al (1998) rather than Oldfield's (1971) laterality quotient to give a handedness score (Oldfield10) and laterality score (Oldfield12) including foot and eye preference. Second, the behaviorally validated Coren inventory (Coren, Porac, & Duncan, 1979) measured hand, foot, ear, and eye preference, providing a laterality score when summed.…”

Section: Methodsmentioning

confidence: 99%

“…Two studies in male combat veterans and one in traumatized children have considered lateral preference in PTSD. Spivak, Segal, Mester, and Weizman (1998) and Chemtob and Taylor (2003) found increased mixed lateral preference in veterans with PTSD. Saltzman, Weems, Reiss, and Carrión (2006) found increased mixed laterality in traumatized children with PTSD and a correlation between laterality scores and symptom severity, indicating a leftward bias with increasing symptomatology.…”

mentioning

confidence: 95%

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Left hand preference is related to posttraumatic stress disorder

Choudhary

O’Carroll

2007

Journal of Traumatic Stress

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Previous studies have found an increased prevalence of mixed/left handedness in male combat veterans and children with posttraumatic stress disorder (PTSD). This study examined lateral preference and screened for possible PTSD using a self-completion instrument in a general population sample (N = 596). Fifty-one individuals met all criteria for possible diagnosis of PTSD and, significantly, this group contained relatively more left handers; this effect was associated with strong left-handedness, rather than weak or mixed handedness. Left handers were found to have significantly higher scores in arousal symptoms of PTSD. This study extends previous findings to a civilian population and to women and suggests the association with left handedness may be a robust finding in people with PTSD.

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Lateral preference in post-traumatic stress disorder

Cited by 48 publications

References 20 publications

Hormonal Correlates of Hand Preference in Free-ranging Primates

Hormonal Correlates of Hand Preference in Free-ranging Primates

A Matter of Degree: Strength of Brain Asymmetry and Behaviour

Left hand preference is related to posttraumatic stress disorder

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