Effects of Drive Level upon Differentiation of Response Force.
Abstract
Five groups of rats were trained to press an isometric manipulandum and were rewarded with a 20 mg. pellet on responses meeting or exceeding an 8.0 gm. force criterion. All groups were run under 24 hr. food deprivation with different drive levels determined by prefeeding of 0, 3, 6, 9, or 12 gms. The major findings are: (1) mean and median peak force of responding, as well as standard deviation of the mean, are U-shaped functions of amount of prefeeding during acquisition, with the lowest levels occuring at an intermediate drive level; (2) gain is an inverse U-shaped function of amount of prefeeding during acquisition, with the highest value occuring at an intermediate drive level. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1966
- Accession Number
- AD0740381
Entities
People
- W. Douglas Ensminger
Organizations
- Princeton University