Do infants, like adults, consider both the probability of falling and the severity of a potential fall when deciding whether to cross a bridge? Crawling and walking infants were encouraged to cross bridges varying in width over a small drop-off, a large drop-off, or no drop-off. Bridge width affects the probability of falling, whereas drop-off…

Pigeons responded in a perceptual categorization task with six different stimuli (shades of gray), three of which were to be classified as "light" or "dark", respectively. Reinforcement probability for correct responses was varied from 0.2 to 0.6 across blocks of sessions and was unequal for correct light and dark responses. Introduction of a new…

Assessed how individual characteristics and perceptions of infant needs are associated with decisions about employment. Comparisons and findings about decisions to work or stay home are interpreted in light of maternal demographic and personality attributes and maternal perceptions of infant needs and characteristics. (Author/BL)

The author reviews some of his observations regarding the responsibility of the physician caring for the hopelessly ill child and presents the resolutions proposed in 1974 by the adhoc committee on Ethics and Survival. (SB)

Examined maternal employment decisions after birth of first child. Findings from 164 new mothers revealed that occupational status, family income, role commitment, division of labor, and job stress distinguished mothers who returned to employment and those who stayed home throughout first year. Financial need was most important reason for…