Schedule-induced polydipsia contrast in the rat

Schedule-induced polydipsia was studied using a behavioral contrast paradigm. Food pellets were delivered to food-deprived rats on a response-independent FT 1-min schedule. Licking on a tube produced water on a MULT FR 10 FR 10, MULT FR 10 EXT, or MIXED FR 10 EXT for three rats (Experiment 1) and on a MULT VI VI, MULT VI EXT, or MIXED VI EXT schedule for three other rats (Experiment 2). On the FR schedules, rats could drink more water by increasing lick rates, but on the VI schedules the amount of drinking was fixed by the schedule parameters and was relatively unaffected by lick rates. Relative to MULT FR FR, positive polydipsia contrast was clearly demonstrated on MULT and MIXED FR EXT; but relative to MULT VI VI, contrast was not demonstrated on MULT and MIXED VI EXT. These data suggest that polydipsia contrast occurs only if increased licking permits increased drinking.     

Developmental Achievements of 7‐year‐old Children in Poland in the Light of International Tests and the Requirements of the Polish Language School Program

The language competence and reading comprehension of 406 7‐year‐old children are examined in the research discussed in this article. The children were tested using comparative tests as part of an international project conducted in 14 countries and sponsored by the IEA and the High Scope Research Foundation in Ypsilanti, USA. The discussion here relates only to a part of this wider research and focuses upon the aims and contents of Polish language teaching in grades I—III of the Polish primary school.     

A Role for Music Therapy in Special Education

Music therapy is the planned use of music to achieve therapeutic aims. This article outlines the role and application of music therapy in special education with reference to findings documented in recent research and practice literature. Music therapy in Australia is practised in medical contexts (e.g., nursing homes, hospice care, hospitals) and education contexts (e.g., special schools, regular schools, and special education development units). Music therapists also work in private practice or in community programs.     

Book review

Suzanne Grant Lewis and Joel Samoff, eds., Microcomputers in African Development: Critical Perspectives (Boulder, CO: Westview Press, 1992), 258 pp., $42.50 (ISBN 0–8133–7934–2).     

Perspectives on… Roaches, Guerrillas, and “Librarians on the Loose”

Sophistication and accessibility can be dangerous bedfellows, especially when it comes to information sources. One of the real challenges in undergraduate academic libraries can be connecting students in a meaningful way to the resources that will be most helpful and understandable for them. This article discusses how techniques borrowed from the world of business and marketing, as well as customer service techniques, can provide some useful strategies for librarians serving undergraduates.