Poison control

About: Poison control is a research topic. Over the lifetime, 394709 publications have been published within this topic receiving 15781638 citations.

Judged frequency of lethal events

Abstract: A series of 5 experiments with 660 adult Ss studied how people judge the frequency of death from various causes. The judgments exhibited a highly consistent but systematically biased subjective scale of frequency. Two kinds of bias were identified: (a) a tendency to overestimate small frequencies and underestimate larger ones; and (b) a tendency to exaggerate the frequency of some specific causes and to underestimate the frequency of others, at any given level of objective frequency. These biases were traced to a number of possible sources, including disproportionate exposure, memorability, or imaginability of various events. Ss were unable to correct for these sources of bias when specifically instructed to avoid them. Comparisons with previous laboratory studies are discussed, along with methods for improving frequency judgments and the implications of the present findings for the management of societal hazards. (36 ref) (PsycINFO Database Record (c) 2012 APA, all rights reserved)

Stability of aggressive reaction patterns in males: a review.

Abstract: Considered in the review are 16 studies on the stability of aggressive behavior and reaction patterns. There is great variation among the studies in sample composition, in definition of variables, in method of data collection, and in the ages and intervals studied. Generally, the size of a (disattenuated) stability coefficient tends to decrease linearly as the interval between the two times of measurement (T2— 7\) increases. Furthermore, the degree of stability can be broadly described as a positive linear function of the interval covered and the subject's age at the time of first measurement, expressed in the age ratio T-^/T^,. The degree of stability that exists in the area of aggression was found to be quite substantial; it was, in fact, not much lower than the stability typically found in the domain of intelligence testing. Marked individual differences in habitual aggression level manifest themselves early in life, certainly by the age of 3. It was generally concluded that (a) the degree of longitudinal consistency in aggressive behavior patterns is much greater than has been maintained by proponents of a behavioral specificity position, and (b) important determinants of the observed longitudinal consistency are to be found in relatively stable, individual-differentiating reaction tendencies or motive systems (personality variables) within individuals.

The Basics of Brain Development

Abstract: Over the past several decades, significant advances have been made in our understanding of the basic stages and mechanisms of mammalian brain development. Studies elucidating the neurobiology of brain development span the levels of neural organization from the macroanatomic, to the cellular, to the molecular. Together this large body of work provides a picture of brain development as the product of a complex series of dynamic and adaptive processes operating within a highly constrained, genetically organized but constantly changing context. The view of brain development that has emerged from the developmental neurobiology literature presents both challenges and opportunities to psychologists seeking to understand the fundamental processes that underlie social and cognitive development, and the neural systems that mediate them. This chapter is intended to provide an overview of some very basic principles of brain development, drawn from contemporary developmental neurobiology, that may be of use to investigators from a wide range of disciplines.