Genes, Brains, and Human Potential The Science and Ideology of Intelligence
148 INTELLIGENT DEVELOPMENT dynamics rather than a linear command sequence. Development, that is, constitutes a responsive, inte ...
INTELLIGENT DEVELOPMENT 149 Such “canalization” of development, as Waddington called it, is found in all basic aspects of the bo ...
150 INTELLIGENT DEVELOPMENT Developmental Plasticity Canalization of development is obviously advantageous when a single form or ...
INTELLIGENT DEVELOPMENT 151 population densities. Likewise, the sex ratio in certain reptiles is known to be developmentally pla ...
152 INTELLIGENT DEVELOPMENT fairly defi nite endpoint, when the adult structure/function has been con- structed. Some further ma ...
INTELLIGENT DEVELOPMENT 153 in spatially well- defi ned social groups in which there are many females and few males. When a male ...
154 INTELLIGENT DEVELOPMENT DEVELOPMENT AND EVOLUTION It is natu ral to think of these intelligent developmental pro cesses as d ...
INTELLIGENT DEVELOPMENT 155 A classic example involves “heat shock” proteins in fruit fl ies. As their name suggests, this is a ...
156 INTELLIGENT DEVELOPMENT ways, and with little correlation between ge ne tic and phenotypic varia- tion. Nevertheless, the ge ...
INTELLIGENT DEVELOPMENT 157 of hype and publicity mentioned in chapter 1, these parents are mostly convinced that the potential ...
158 INTELLIGENT DEVELOPMENT assembly. But their activities then need to be coordinated so that the whole functions harmoniously ...
INTELLIGENT DEVELOPMENT 159 standing on end), produce heat by shivering, stimulate adrenaline pro- duction to activate muscles, ...
160 INTELLIGENT DEVELOPMENT Hormones Interact Th at hormones interact and do not usually act as in de pen dent switches has been ...
INTELLIGENT DEVELOPMENT 161 mone corticotropin. Th is then enters the bloodstream to reach the adre- nal glands above the kidney ...
162 INTELLIGENT DEVELOPMENT and in development, function and variation in physiology are best mod- eled by nonlinear dynamics ra ...
INTELLIGENT DEVELOPMENT 163 being seated within the anterior end of the body, receiving impressions from the sense organs, and d ...
164 INTELLIGENT DEVELOPMENT convinced that natu ral ability varies as if it were a physiological trait. For that reason, he and ...
INTELLIGENT DEVELOPMENT 165 should not be surprising: ge ne tic variance for impor tant traits will tend to be much reduced by n ...
166 INTELLIGENT DEVELOPMENT system, so long as a basic threshold is reached, the exact levels do not matter. Indeed, as describe ...
INTELLIGENT DEVELOPMENT 167 All this further suggests that the popu lar conceptual model of IQ and its heritability have far mor ...
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