Contingency tracking during unsignaled delayed reinforcement

Three experiments were conducted with rats in which responses on one lever (labeled the functional lever) produced reinforcers after an unsignaled delay period that reset with each response during the delay. Responses on a second, nonfunctional, lever did not initiate delays, but, in the first and third experiments, such responses during the last 10 s of a delay did postpone food delivery another 10 s. In the first experiment, the location of the two levers was reversed several times. Responding generally was higher on the functional lever, though the magnitude of the difference diminished with successive reversals. In the second experiment, once a delay was initiated by a response on the functional lever, in different conditions responses on the nonfunctional lever either had no effect or postponed food delivery by 30 s. The latter contingency typically lowered response rates on the nonfunctional lever. In the first two experiments, both the functional and nonfunctional levers were identical except for their location; in the third experiment, initially, a vertically mounted, pole-push lever defined the functional response and a horizontally mounted lever defined the nonfunctional response. Higher response rates occurred on the functional lever. These results taken together suggest that responding generally tracked the response-reinforcer contingency. The results further show how nonfunctional-operanda responses are controlled by a prior history of direct reinforcement of such responses, by the temporal delay between such responses and food delivery, and as simple generalization between the two operanda.     

Cosmic Mind?

This article explores the remote scientific possibility of something like “cosmic mind” or “cosmic minds.” Descartes proposed his famous dualism, res cogitans (mental reality) plus res extensa (physical reality). With Isaac Newton and classical physics, res extensa won in Western science and with it, we lost our minds; we lost our subjective pole. Quantum mechanics has seemed to many, since its formulation in the Schrödinger equation in 1926, to hint beyond physics to a role for the human conscious observer in quantum measurement. At least two interpretations of quantum mechanics, or its extension—the latter by Penrose and Hameroff, and the former by myself—suggest a new panpsychism where conscious awareness and possibly free will occur at quantum measurements anywhere in the universe. If so, then we live in a vastly participatory universe. More: entangled quantum variables may conceivably share some form of consciousness and free will, whether embodied in us, or living forms elsewhere in the universe, or disembodied; hence, something like cosmic mind or minds are not ruled out. If true, life anywhere in the universe will have evolved with mind and free will. Souls are not impossible.     

A PERFORMANCE IMPROVEMENT PROGRAM FOR AN INTERNATIONAL-LEVEL TRACK AND FIELD ATHLETE

This study outlined the development, implementation, and evaluation of an intervention strategy that was designed to improve the technical skill and performance of an international-level pole vaulter. Intervention, in the form of a prompting and shaping procedure, consisted of breaking a photoelectric beam with the hands at the moment of take-off. The height of the beam was gradually increased until the vaulter reached maximum arm extension at take-off. Increase in arm extension was matched by an increase in bar height clearance.