A mountain climber is ascending a high cliff. He searches for handholds, checks the adjustment of his rope, the position of the person above and below him, and looks for signs of ice that will make a foothold dangerous. He carefully avoids any patch of gravel. Meanwhile, the view around him may be breathtakingly beautiful, but we say that he is paying, for the moment at least, no “attention” to it. He has a task (self-set) at hand, and to perform it adaptively he must perceive the affordances for climbing in footholds, handholds, surface conditions, and the state of his companions. Otherwise, disaster awaits them. Optimal pickup of information of this sort requires experience and skill in detection of the affordances involved. The same degree and quality of selection of information would not be found in the same man performing a task like walking along a sidewalk. Walking along a sidewalk does not require careful inspection; such a task allows a search for information relevant to tasks other than locomotion. Indeed, sidewalks are built to make the job of walking easier, to put fewer demands on the system to search for information to locomote.
KeywordsClay Respiration Assure Posit Adrenalin
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- Bruner, J.S. Processes of cognitive growth: Infancy (Heinz Werner Lectures Series, Vol. 3 ). Barre, Mass.: Barre, 1968.Google Scholar
- Cohen, L. B., & Gelber, E. R. Infant visual memory. In L. B. Cohen & P. Salapatek (Eds.), Infant perception: From sensation to cognition (Vol. 1 ). New York: Academic, 1975.Google Scholar
- Gibson, E. J. Principles of perceptual learning and development. New York: Prentice-Hall, 1969.Google Scholar
- Gibson, E. J., Poag, M. K., & Rader, N. The effect of redundant rhyme and spelling patterns on a verbal discrimination task. In Appendix to Final Report, Project No. 90046, Grant No. OEG-2-9-420446-1071 ( 010 ), Cornell University and U.S. Office of Education, 1972, pp. 1–11.Google Scholar
- Hagen, J. W., & Hale, G. A. The development of attention in children. In A. D. Pick (Ed.), Minnesota symposium on child psychology (Vol. 7 ). Minneapolis: University of Minnesota Press, 1973.Google Scholar
- Kahneman, D. Attention and effort. Englewood Cliffs, N.J.: Prentice-Hall, 1973.Google Scholar
- Mackworth, J. Development of attention. In V. Hamilton & M. D. Vernon (Eds.), The development of cognitive processes. New York: Academic, 1976.Google Scholar
- Neisser, U. Cognition and reality. San Francisco: W. H. Freeman, 1976.Google Scholar
- Piaget, J. The mechanisms of perception. London: Routledge & Kegan Paul, 1969.Google Scholar
- Pick, A. D., Frankel, D. G., & Hess, V. L. Children’s attention: The development of selectivity. Chicago: University of Chicago Press, 1975.Google Scholar
- Preyer, W. The mind of the child. Part I. The senses and the will. New York: D. Appleton Century, 1888.Google Scholar
- Titchener, E. B. A textbook of psychology. New York: Macmillan, 1924.Google Scholar
- Von Üexkull, J. [A stroll through the worlds of animals and men.] In C. H. Schiller (Ed. and trans.), Instinctive behavior: The development of a modern concept. New York: International Universities Press, 1957. (Originally published, 1934.)Google Scholar