A growing number of students presenting with nonlethal self-injury has recently captured the attention of school nurses. The purpose of intentional self-harm is aimed at reducing emotional distress. This is not a new phenomenon, but what is alarming is the increasing incidence of self-injurious behavior among adolescents. This behavior is raising many questions for school staff. School nurses, along with guidance department staff, are searching for information and direction needed to address this behavior. School nurses, educated about self-injury, can serve as resources for other school staff members. Prevention strategies for all adolescents can be developed as well as strategies targeted at groups of at-risk adolescents. Because mental health care is critical for the treatment of self-injury, referral and early access to counseling is an important role for school nurses. In addition, a plan that includes educating staff members and parents can be developed. Included in this comprehensive plan is developing a protocol to be used to guide the care of adolescents who self-injure.
Acquisition of three-alternative simultaneous matching-to-sample and oddity-from-sample was investigated. Five goldfish were trained on matching and five on oddity for a minimum of 70 days. Subsequently, six of the fish were trained for 70 days on the other task. Acquisition was similar for oddity and matching. Correct responding started at about chance level and slowly increased to about 75%, with some animals performing at levels of over 85%. Acquisitiqp of oddity following matching and matching following oddity began below chance. Maximal level of performance on second-task oddity was comparable to that on first-task matching. By contrast, the maximal levels of performance when matching was the second task were not as high as that of the same subjects at the end of firsttask oddity. All fish exhibited strong color preferences during matching acquisition but not during oddity acquisition. The data demonstrated that goldfish can acquire a discrimination in which the stimulus associated with reinforcement depends on the identity of a second stimulus.
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