In the conditioned magazine approach paradigm, rats are exposed to a contingent relationship between a conditioned stimulus (CS) and the delivery of food (the unconditioned stimulus, US). As the rats learn the CS-US association, they make frequent anticipatory head entries into the food magazine (the conditioned response, CR) during the CS. Conventionally, this is considered to be a Pavlovian p...

This study compared three methods of normalizing demand functions to allow comparison of demand for different commodities and examined how varying reinforcer magnitudes affected these analyses. Hens responded under fixed-ratio schedules in 40-min sessions with response requirement doubling each session and with 2-s, 8-s, and 12-s access to wheat. Over the smaller fixed ratios overall response r...

In this study, we investigated the effect of an indoor plant on task performance and on mood. Three room arrangements were used as independent variables: a room with (1) a plant, or (2) a magazine rack with magazines placed in front of the participants, or (3) a room with neither of these objects. Undergraduate students (M= 35, F= 55) performed a task of associating up to 30 words with each of ...

BACKGROUND Health promotion initiatives are an important element of occupational medicine practice but evaluating success is complex. The publishers of a quarterly health promotion magazine asked an aluminium smelting company if it would consider providing the magazine to its employees. AIMS To evaluate the possible benefits to employees of receiving a health promotion magazine. METHODS Thr...

The present study compares behavioral changes between two distinct rodent groups, hamsters (Mesocricetus auratus) and Wistar rats, when submitted in the same homogeneous experimental situations to a serial conditional discrimination procedure which involves water deprivation and the processing of temporal variables. Both hamsters and rats acquired serial positive conditional discrimination as i...

OBJECTIVE To assess the extent and content of newspaper and magazine coverage of research on passive smoking. DESIGN Content analysis of newspaper and magazine articles. SUBJECTS Articles reporting on passive smoking research published in newspapers (n = 180) or magazines (n = 92) between January 1981 and December 1994. MAIN OUTCOME MEASURES Numbers of articles, conclusions of articles, s...

A similar article was published in the May, 2006 issue of Lightwave Magazine.