{"id":68,"date":"2016-02-04T16:01:48","date_gmt":"2016-02-04T21:01:48","guid":{"rendered":"http:\/\/commons.trincoll.edu\/purpleperils\/?page_id=68"},"modified":"2016-02-04T16:07:13","modified_gmt":"2016-02-04T21:07:13","slug":"on-exploratory-vs-performatory-manipulation-and-the-experiments-being-performed-to-distinguish-them","status":"publish","type":"page","link":"https:\/\/commons.trincoll.edu\/purpleperils\/1962-1964\/on-exploratory-vs-performatory-manipulation-and-the-experiments-being-performed-to-distinguish-them\/","title":{"rendered":"On Exploratory vs. Performatory Manipulation and the Experiments being Performed to Distinguish Them"},"content":{"rendered":"<p>August 1963<\/p>\n<h3>On Exploratory vs. Performatory Manipulation and the Experiments being Performed to Distinguish Them<\/h3>\n<p>J. J. Gibson, Cornell University<\/p>\n<h5>The World Wide Web distribution of James Gibson&#8217;s &#8220;Purple Perils&#8221; is for scholarly use with the understanding that Gibson did not intend them for publication. References to these essays must cite them explicitly as unpublished manuscripts. Copies may be circulated if this statement is included on each copy.<\/h5>\n<p>The difference between exploratory and performatory manipulation might be said to be one of <strong>attention<\/strong>, but I rather say it is a difference of <strong>intention<\/strong>. The purpose is information in one case and achievement in the other.<br \/>\nHeld&#8217;s experiments fail to distinguish between <strong>exploratory and performatory action<\/strong> (Cf. &#8220;Useful Dimensions&#8221;). He only distinguishes &#8220;active movements&#8221; from &#8220;passive movement&#8221;. What he ought to say is that only <strong>intended<\/strong> movements cause adaptation to the prism situations, not unintended movements of the hands. And I would add that either the intention to <strong>explore<\/strong> or to <strong>perform<\/strong> would be sufficient to yield adaptation. (Exploratory eye-movements with head movements are <strong>never<\/strong> performatory responses, but they are probably sufficient for phenomenal adaptation to spectacles, as Kohler and I conclude. Note that<strong>unintended<\/strong> eye movements cause illusory motions of the world).<br \/>\nThe stimulus information obtained from exploratory activity of the hands may be quite different from the stimulus feedback from performatory activity of the hands. The first is a selection from an inexhaustible supply; the second is in selective. How can we further elaborate and test these hypotheses?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>August 1963 On Exploratory vs. Performatory Manipulation and the Experiments being Performed to Distinguish Them J. J. Gibson, Cornell University The World Wide Web distribution of James Gibson&#8217;s &#8220;Purple Perils&#8221; is for scholarly use with the understanding that Gibson did not intend them for publication. References to these essays must cite them explicitly as unpublished &hellip; <a href=\"https:\/\/commons.trincoll.edu\/purpleperils\/1962-1964\/on-exploratory-vs-performatory-manipulation-and-the-experiments-being-performed-to-distinguish-them\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;On Exploratory vs. Performatory Manipulation and the Experiments being Performed to Distinguish Them&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1001,"featured_media":0,"parent":16,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/pages\/68"}],"collection":[{"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/users\/1001"}],"replies":[{"embeddable":true,"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/comments?post=68"}],"version-history":[{"count":1,"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/pages\/68\/revisions"}],"predecessor-version":[{"id":74,"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/pages\/68\/revisions\/74"}],"up":[{"embeddable":true,"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/pages\/16"}],"wp:attachment":[{"href":"https:\/\/commons.trincoll.edu\/purpleperils\/wp-json\/wp\/v2\/media?parent=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}