Related Experiment Video
Updated: Dec 18, 2025

Wheel Running and Environmental Complexity as a Therapeutic Intervention in an Animal Model of FASD
Published on: February 2, 2017
Environmental Complexity and Research Outcomes
Kathleen R Pritchett-Corning1,2
1Office of Animal Resources, Faculty of Arts and Sciences, Harvard University, Cambridge, Massachusetts.
Abstract:
Environmental complexity is an experimental paradigm as well as a potential part of animals' everyday housing experiences. In experimental uses, researchers add complexity to stimulate brain development, delay degenerative brain changes, elicit more naturalistic behaviors, and test learning and memory. Complexity can exacerbate or mitigate behavioral problems, give animals a sense of control, and allow for expression of highly driven, species-typical behaviors that can improve animal welfare. Complex environments should be designed thoughtfully with the animal's natural behaviors in mind, reported faithfully in the literature, and evaluated carefully for unexpected effects.
Related Concept Videos
Naturalistic Observations
Environmental Influences on Intelligence
Gene-Environment Interactions
Background and Environment Affect Phenotype
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
Impact of Social Context on Individuals
Environmental Applications of Microorganisms

