What effect does the environment have on intellectual differences in humans?

          The environment has different effects on intellectual different in humans. Donald O. Hebb thought that the environment played a critical role in the development of intelligence in humans (Olson & Hergenhahn, 2013). Hebb thought that there were two types of environments that had an effect on learning, which are restricted environments and enriched environments. Restricted environments have disabling effects on early learning and the development of the nervous system (Olson & Hergenhahn, 2013). Basically, these environments have disabling effects as for intelligence. and development. Enriched environments with a wide variety of sensory and motor experience have the potential to enhance development (Olson & Hergenhahn, 2013). For individuals in enriched environments, learning can occur faster and develop is well balanced. Enriched environments also have a positive effect that restricted environments do not, which is reversing the effects of restricted environments. When one experiences damage in a restricted environments it can be reversed by transitioning into enriched environments.

Reference

Olson, M. H. & Hergenhahn, B. R. (2013). An introduction to theories of learning (9th ed.). Upper Saddle River, NJ: Pearson.