Schleifer Michael, Weiss Gabrielle, Cohen Nancy, Elman Meryl, Cvejic Helen, Kruger Elena
Montreal Children's Hospital.
Am J Orthopsychiatry. 1975 Jan;45(1):38-50. doi: 10.1111/j.1939-0025.1975.tb01164.x.
Observations of nursery behavior and tests of cognitive style and motor impulsivity were carried out with 28 hyperactive preschool children of normal intelligence and 26 matched control children. The hyperactive group was also observed and tested on methylphenidate and placebo. Methylphenidate was found to reduce hyperactivity at home, but it did not improve nursery behavior or psychological functioning. Unwanted side effects made the drug less useful at this age than in older hyperactive children.
对28名智力正常的多动学龄前儿童和26名匹配的对照儿童进行了托儿所行为观察、认知风格测试和运动冲动性测试。还对多动组儿童在服用哌甲酯和安慰剂的情况下进行了观察和测试。结果发现，哌甲酯可减少家中的多动行为，但并未改善托儿所行为或心理功能。在这个年龄段，药物的不良副作用使其不如在年龄较大的多动儿童中那么有用。
