cortex: Effect of experience on the brain.
In trobinj/trtools: Miscellaneous Tools for Teaching Statistics
cortex R Documentation
Effect of experience on the brain.
Description
Data from a randomized experiment investigating the effect of experience on brain development. Rats were randomized within litter to two groups: a treatment condition in which the rat lived in an enriched environment with other rats and toys that were regularly changed, and a control condition in which the rat lived in isolation without any toys. After one month each rats was sacrificed and the weight of its cortex was measured. Note that five such experiments were conducted.
Usage
cortex
Format
A data frame with 118 observations and four variables:
- weight
weight of the cortex in milligrams
- group
the treatment group (treatment or control)
- experiment
id for the experiment (1-5)
- litter
id for the litter (1-59)
Note
The data are from Freedman, Pisanai, and Purves (1998). They cite Rosenzweig, Bennett, and Diamond (1964) as the original study, but that source does not provide the data.
Source
Rosenzweig, M., Bennett, E. L., & Diamond, M. C. (1964). Brain changes in response to experience. Scientific American, 210, 22-29.
Freedman, D., Pisani, R., & Purves, R. (1998). Statistics (3rd edition). New York: Norton.
trobinj/trtools documentation built on Jan. 28, 2024, 3:20 a.m.
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| cortex | R Documentation |
Effect of experience on the brain.
Description
Data from a randomized experiment investigating the effect of experience on brain development. Rats were randomized within litter to two groups: a treatment condition in which the rat lived in an enriched environment with other rats and toys that were regularly changed, and a control condition in which the rat lived in isolation without any toys. After one month each rats was sacrificed and the weight of its cortex was measured. Note that five such experiments were conducted.
Usage
cortex
Format
A data frame with 118 observations and four variables:
- weight
weight of the cortex in milligrams
- group
the treatment group (treatment or control)
- experiment
id for the experiment (1-5)
- litter
id for the litter (1-59)
Note
The data are from Freedman, Pisanai, and Purves (1998). They cite Rosenzweig, Bennett, and Diamond (1964) as the original study, but that source does not provide the data.
Source
Rosenzweig, M., Bennett, E. L., & Diamond, M. C. (1964). Brain changes in response to experience. Scientific American, 210, 22-29.
Freedman, D., Pisani, R., & Purves, R. (1998). Statistics (3rd edition). New York: Norton.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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