Four rats had continuous access to activity wheels first, then access for 1 hr per day, and, subsequently, continuous access. Limiting S's access to the wheel substantially increased the total frequency of running. A distributional analysis of response duration, burst duration, and interburst interval showed that the increased frequency arose almost entirely from a shorten-ing of the interval between successive bursts. In contrast, speed of the individual response and number of responses per burst changed only negligibly. If S were running, the prob-ability that it would either stop or continue did not differ appreciably for the conditions of continuous or limited access to the wheel. But if S were not running, the probability that it ...
The present report describes an operant running device for rats. The apparatus makes use of an activ...
The effects on feeding of moving animals from individual- to pair-housing were explored in the prese...
Rats engage with voluntary running wheels spontaneously and come to run tremendous, stable distances...
In rats, long daily wheel access produces an escalation to excessive levels of running while short d...
Animal studies using the self-administration paradigm suggest that duration of drug access (Ahmed, 2...
These experiments explore a wheel running work-response function with the goal of paralleling the dr...
The first experiment sought specifically to determine whether variations in rats' overall run time i...
Dissociating motoric and motivational effects of pharmacological manipulations on operant behavior i...
Previous research suggested that allocation of responses on concurrent schedules of wheel-running re...
The aims of this study were to characterize the pattern of voluntary activity of young rats in respo...
<p><b>A</b>) <b>Representative </b><b>double-plotted </b><b>actograms</b> of the locomotor activity ...
analysis A scaling apprqach was introduced recently to assess equential nd geometrical spects of ani...
Bibliography: pages 55-60.The present study investigated the effects of shifts in reward magnitude o...
This experiment was designed to test the hypothesis that as drive level increased, defined by hours ...
The impact of food restriction and refeeding on wheel running was examined in 3 groups of rats: 55 d...
The present report describes an operant running device for rats. The apparatus makes use of an activ...
The effects on feeding of moving animals from individual- to pair-housing were explored in the prese...
Rats engage with voluntary running wheels spontaneously and come to run tremendous, stable distances...
In rats, long daily wheel access produces an escalation to excessive levels of running while short d...
Animal studies using the self-administration paradigm suggest that duration of drug access (Ahmed, 2...
These experiments explore a wheel running work-response function with the goal of paralleling the dr...
The first experiment sought specifically to determine whether variations in rats' overall run time i...
Dissociating motoric and motivational effects of pharmacological manipulations on operant behavior i...
Previous research suggested that allocation of responses on concurrent schedules of wheel-running re...
The aims of this study were to characterize the pattern of voluntary activity of young rats in respo...
<p><b>A</b>) <b>Representative </b><b>double-plotted </b><b>actograms</b> of the locomotor activity ...
analysis A scaling apprqach was introduced recently to assess equential nd geometrical spects of ani...
Bibliography: pages 55-60.The present study investigated the effects of shifts in reward magnitude o...
This experiment was designed to test the hypothesis that as drive level increased, defined by hours ...
The impact of food restriction and refeeding on wheel running was examined in 3 groups of rats: 55 d...
The present report describes an operant running device for rats. The apparatus makes use of an activ...
The effects on feeding of moving animals from individual- to pair-housing were explored in the prese...
Rats engage with voluntary running wheels spontaneously and come to run tremendous, stable distances...