Comparative psychology emphasizes similarities and differences between levels in both the
abilities and the organization of behavior. Studies of the organization of species-typical …

In the past, the development of behavior in vertebrate embryos has been interpreted in terms
of two opposing viewpoints. Coghill, on the basis of his observations on the salamander …

ANIMAL behavior, long an attractive theme with students of natural history, has in recent
times become the centre of interest to investigators in the field of pyschogenesis. The study …

This chapter is written in an effort to deal with these questions: When does behavior begin?
How does behavior develop during the early weeks and months of life? The material …

The purpose of this chapter is to present a general framework for studying the development
of behavior. Kruijt (1964) proposed that, in young animals, the motor components of …

A general consideration of the growth of behavior discussed after the manner of the
anatomist who considers the growth of structure. Harvard Book List (edited) 1949# 524 …

Discusses the analysis of the contribution of normal experience occurring in early stages
(including embryogeny) to the development of species-typical behavior. It is now evident that …

The author finds that many forms of behavior which appear at birth have their origin in
prenatal movements of the embryo. He therefore concludes that" the development of …

The nature-nurture question is neither trivial nor simple (nor dead); it has ensnared, teased,
and persistently occupied some of the best scientific minds of the century [see, for example …

Presents a supplemental version of a 1967 treatise on conceptual issues in the study of
animal behavior. The need to establish multidisciplinary centers for developmental studies …