The CLIPR remote laboratory microprocessor system: Development and applications

Bailey, Daniel E.; Ward, Wayne H.; Spear, Terry L.; Leatherman, R.; Waite, Joanne L.; Christian, Tom

doi:10.3758/bf03205664

Behavior Research Methods & Instrumentation

1979

DOI: 10.3758/bf03205664

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The CLIPR remote laboratory microprocessor system: Development and applications

Daniel E. Bailey

Wayne H. Ward

Terry L. Spear

et al.

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1981

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“…Third, the larger the system, the greater the number of programs available in libraries, and the easier is the programming compared with a stand-alone system. If a free (or cheap) timesharing computer is unavailable, the interface can be connected easily to a standalone microcomputer such as a Terak or Apple and Bailey, Ward, Spear, Leatherman, Waite, & Christian, 1979;Fox, Ward, & Lesgold, 1979). However, as yet, transportable systems have not been developed (see Friendly & Franklin, 1979, for additional discussion of such designs).…”

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confidence: 99%

A microcomputer interface for control of real-time experiments in cognitive psychology

Ratcliff

Layton²

1981

Behavior Research Methods & Instrumentation

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A microcomputer system for real-time control of experiments in cognitive psychology is described. The microcomputer serves as an interface that allows a remote timesharing computer to control the timed display of textual material on CRTs and collect response times accurate to 1 msec. It can control two CRT subject stations presenting the same or different experiments and control other devices such as slide projectors and tape recorders. It is argued that such special-purpose microcomputer interfaces provide a real-time laboratory with significantly less effort than does the more traditional laboratory minicomputer.A major portion of the time of many cognitive psychologists is spent in the development and use of laboratory computer systems. Such systems have often taken the form of dedicated laboratory minicomputers for precise experimental control of stimulus presentation and response recording. The rapid decrease in cost and the rise in power of microcomputers now make it feasible to develop special-purpose microcomputers that act as intelligent controllers of experiments. The system described in this paper uses a microcomputer-based interface to allow a remote timesharing computer to control timed display of textual material and collection of response times. It also gives the timesharing system the ability to control devices (e.g., slide projectors and tape recorders) and to receive input from on-off devices (e.g., extra pushbuttons) or analog input (e.g., potentiometer or GSR levels).The interface is plugged in between the computer and the terminals. To the computer it is exactly like a terminal; to the terminal the interface is like a computer. Thus, no spacial connections or modifications are needed to the computer or the terminals to install the interface (although extra connections can be added to provide better control of the CRT displays). When the system is first switched on, the interface is in its "transparent" mode and one of the terminals operates as if it were connected directly to the timesharing computer. A Roger Ratcliff provided some aid in system design and Mike Layton performed the system implementation. For information on a commercial version of this system, contact W. Michael Layton, AGS, Box 64, Hanover, New Hampshire 03755. We would like to thank Jim Hansen for providing the microcomputer for the prototype version of the system and Gail McKoon for comments on this paper.

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A microcomputer interface for control of real-time experiments in cognitive psychology

Ratcliff

Layton²

1981

Behavior Research Methods & Instrumentation

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“…Papers from this conference have often been helpful in illustrating the functioning of in-place laboratory systems that may be duplicated by others (e.g., Bailey, Ward, Spear, Leatherman, Waite, & Christian, 1979;Crossman & Williams, 1978;Santa & Streit, 1978; these are but a few of the many helpful papers). Some of us have learned first-hand, however, that duplication of other people's computer laboratories may neither satisfy our current objectives nor permit even the satisfaction of a modest set of foreseeable objectives.…”

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External memory: High speed, low speed, and no speed

Revlin

1981

Behavior Research Methods & Instrumentation

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The CLIPR remote laboratory microprocessor system: Development and applications

Cited by 2 publications

References 7 publications

A microcomputer interface for control of real-time experiments in cognitive psychology

A microcomputer interface for control of real-time experiments in cognitive psychology

External memory: High speed, low speed, and no speed

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