caa a22 4500 386354103 CHVBK 20180307111844.0 cr unu---uuuuu 161130e198902 xx s 000 0 eng 10.1017/S0033291700011120 doi S0033291700011120 pii (NATIONALLICENCE)cambridge-10.1017/S0033291700011120 Social interaction and speed of information processing following very severe head-injury [Elektronische Daten] Eighteen adults who had suffered a very severe closed head-injury more than 18 months previously and required long-term rehabilitative support were compared with a closely matched control group. Unlike previous studies, which have reported negative personality change involving an increase in aversive behaviour, our behavioural observation data suggest that a global reduction in behavioural productivity, or negative symptomatology, characterizes social interaction by this group. This resulted in their being judged less socially skilled, less likeable and less interesting, and thus less reinforcing to interact with. Speed of information processing was specifically impaired for the closed head-injury group, although this did not correlate with global behavioural ratings of social interaction behaviour. It is suggested that low behavioural productivity may be associated with family burden, and that the low quantity of social interaction experienced by severely head-injured adults may reflect the unreinforcing nature of their interactions. Copyright © Cambridge University Press 1989 Godfrey Hamish P. D. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand Knight Robert G. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand Marsh Nigel V. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand Moroney Bernadette Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand Bishara Samir N. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand Psychological Medicine Cambridge University Press 19/1(1989-02), 175-182 0033-2917 19:1<175 1989 19 PSM https://doi.org/10.1017/S0033291700011120 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0033291700011120 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Godfrey Hamish P. D. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand NATIONALLICENCE 700 1- Knight Robert G. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand NATIONALLICENCE 700 1- Marsh Nigel V. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand NATIONALLICENCE 700 1- Moroney Bernadette Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand NATIONALLICENCE 700 1- Bishara Samir N. Departments of Psychology and Neurosurgery, University of Otago, Dunedin, New Zealand NATIONALLICENCE 773 0- Psychological Medicine Cambridge University Press 19/1(1989-02), 175-182 0033-2917 19:1<175 1989 19 PSM CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge