In the present study, we examined sexual knowledge, sexual behavior, and psychological adjustment of adolescents with blindness. The sample included 36 Dutch adolescents who are blind, 16 males and 20 females. Results of the interviews revealed no problems regarding sexual knowledge or psychological adjustment. Sexual behavior however, was more at risk. Adolescents with blindness had less sexual experiences and were older in having sexual experiences compared with youth without disabilities in the Netherlands. Subgroup analysis showed that boys with blindness scored higher on selfesteem if they had sexual intercourse. If boys perceived their family as overprotective they less often experienced sexual intercourse. Furthermore, if boys reported more family opposition, they more often had experienced sexual intercourse. These results were not found for girls in this sample. We would like to recommend to youth with visual impairments to be active in leisure activities, outside their homes, in the presence of peers.

The current study examined whether there are differences between gay father families (n = 36) and heterosexual families (n = 36) on father‐child relationship, fathers' experiences of parental stress and children's wellbeing. The gay fathers in this study all became parents while in same‐sex relationships. They donated sperm to lesbian couples and then shared the child‐rearing with them in kinship arrangements. It was also examined whether aspects that are related specifically to gay fathers (i.e., experiences of rejection, having to defend their family situation, with whom the children live, and conflicts with the children's mothers) are also related to the father‐child relationship, parental stress and children's wellbeing. Data were collected by means of questionnaires filled in by the fathers. No significant differences between the family types were found on emotional involvement and parental concern in the father‐child relationship, parental burden (as an aspect of parental stress) or the children's wellbeing. However, gay fathers felt less competent in their child‐rearing role than heterosexual fathers. For gay fathers especially, experiences of rejection and the feeling that they have to defend their situation were significantly related to father‐child relationship, parental stress and children's wellbeing.

Part 1 of this study attempted to discriminate clinical responders and nonresponders to methylphenidate (MPH) on the basis of neuropsychological deficit profiles. Part 2 addressed the question to what extent MPH might ameliorate these deficits. Hyperactive clinical responders (n = 30) and nonresponders (n = 28) to MPH, were compared to normal controls (n = 27) on selective and sustained attention tasks and on conventional psychological and neurological measures. The responders took part in a randomized double-blind placebo-controlled crossover study. They ingested a placebo (PL) or MPH (0.3-0.6 mg/kg/day) during 4 weeks, and were then tested. After crossover, another period of 4 weeks was concluded by a second test series. Compared to controls, both responders and nonresponders showed attention deficits in encoding, memory search, and decision operations, as well as in focused and sustained attention, vigilance, and use of feedback. These deficits were the most severe in the responders. Anamnestic data, IQ scores, and neurological variables did not discriminate between groups. MPH selectively alleviates attention deficits. MPH did not affect divided attention, except for an increased accuracy of response organization. The drug, however, greatly improved focused and sustained attention, vigilance, impulsivity, and the behavioral adaptivity to feedback.

This research was supported, under the auspices of the Open Research Area (Application BO 3973/1-1; Principal Investigator, Michael E Lamb), by grants from the UK Economic and Social Research Council (ESRC; Grant ES/K006150/1; Principal Investigator, Michael E. Lamb), The Netherlands Organisation for Scientific Research (NWO; Grant NWO 464-11-001, Principal Investigator, Henny W.M. Bos) and the French Agence Nationale de Recherche (ANR; Grant ANR-12-ORAR-00005-01, Principal Investigator, Olivier Vecho) whose support is gratefully acknowledged. There were no competing interests.

Funded by the Parkes Foundation, the University of Amsterdam and the Leuven University Hospital. No conflict of interest.