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Stuttering in Adults: The Acoustic Startle Response, Temperamental Traits, and Biological Factors
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Alm, Per A.; Risberg, Jarl – Journal of Communication Disorders, 2007
The purpose of this study was to investigate the relation between stuttering and a range of variables of possible relevance, with the main focus on neuromuscular reactivity, and anxiety. The explorative analysis also included temperament, biochemical variables, heredity, preonset lesions, and altered auditory feedback (AAF). An increased level of…
Descriptors: Stuttering, Adults, Heredity, Genetics
Planar Asymmetry Tips the Phonological Playground and Environment Raises the Bar.
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Eckert, Mark A.; Lombardino, Linda J.; Leonard, Christiana M. – Child Development, 2001
Examined the contribution of biological and environmental variables to 11-year-olds' phonological development. Found that temporal lobe (planar) asymmetry, hand preference, family history of reading disability, and SES explained over half the variance in phonological and verbal performance, demonstrating a linear association between cerebral…
Descriptors: Biological Influences, Brain, Children, Environmental Influences
The Developmental Interface between Nature and Nurture: A Mutual Influence Model of Child Antisocial Behavior and Parent Behaviors.
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Ge, Xiaojia; And Others – Developmental Psychology, 1996
Examined evidence for reciprocal influence between adoptive parents' behavior and heritable characteristics of adopted children. Found that psychiatric disorders of biological parents were significantly related to children's antisocial/hostile behaviors and consequently with adoptive parents' behavior. Also, the adoptee's antisocial/hostile…
Descriptors: Adolescent Attitudes, Adolescent Development, Adolescents, Adopted Children