Pursuit Meter II, a Computer-Based Device for Testing Pursuit-Tracking Performance

Ke, Ferslew; Je, Manno; Br, Manno; Wa, Vekovius; Jm, Hubbard; Le, Bairnsfather

doi:10.2466/pms.1982.54.3.779

Cited by 16 publications

(15 citation statements)

References 6 publications

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“…Though circles are harder to track than other regular figures (Griffith, Voloschin, Gibb, & Bailey, 1983;Jensen, 1975), our data document the upper limit of the system's precision, given the fact that tracking accuracy is enhanced by practice (Ferslew, Manno, Manno, Hubbard, & Vekovius, 1983;Griffith et al, 1983;Poulton, 1969), low velocity (Bradley, 1977;Griffith et al, 1983), predictability (Ferslew et al, 1982), and peripheral devices requiring fine-motor control (Ferslew et al, 1983).…”

Section: Resultsmentioning

confidence: 97%

Cartesian analysis: A computer-video interface for measuring motion without physical contact

Morrel-Samuels

Krauss

1990

Behavior Research Methods, Instruments, & Computers

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In this paper, we describe a computer-video interface capable of measuring videotaped motion without physical contact. It constructs imaginary X-, yo, z-coordinates around a moving object by juxtaposing front and side views on one video record. A special effects generator (SEG) superimposes this two-part image onto the microcomputer's graphic output. The user watches the SEG's output and traces the motion of interest in real-time with a computer-generated cursor, a process that assesses the onset time, termination time, duration, linear displacement (i.e., length), and velocity of each traced movement. Reliability coefficients between two independent users were .99 for onset time, .85 for duration, .89 for displacement, and .90 for velocity. In 80 gestures, the correlation between estimated displacement and measured displacement was. 73; the correlation between estimated duration (determined from frame-by-frame inspection of the videotape) and measured duration was .80. Twenty-five measurements of displacement for a motorized target traveling 75.4 in. differed from the true value by 1.061, 1.061, and 1.30I in. for the x, y, and z dimensions, respectively.

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Section: Resultsmentioning

confidence: 97%

Cartesian analysis: A computer-video interface for measuring motion without physical contact

Morrel-Samuels

Krauss

1990

Behavior Research Methods, Instruments, & Computers

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“…The pursuit rotor test measures the eye-hand motor-control function (Ferslew et al, 1982). Measurement tools and concrete procedures are as follows.…”

Section: Test and Test Proceduresmentioning

confidence: 99%

“…The pursuit rotor test has been mainly used to identify learning retention. Fine motor skills are largely concerned with succeeding in this test because it requires the ability to visually see a target and match a steel pen to a moving target (Ferslew et al, 1982;Nakafuji and Tsuji, 2001). The pursuit rotor test is one of the most useful tests to evaluate motor control function, which coordinates movements according to each task.…”

Section: Introductionmentioning

confidence: 99%

The Practice Effect and Its Difference of the Pursuit Rotor Test with the Dominant and Non-dominant Hands

Noguchi

Demura

Nagasawa

et al. 2005

J. Physiol. Anthropol.

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The purpose of this study was to examine the practice effect and what difference it makes in the pursuit rotor test for the dominant and non-dominant hands in 30 righthanded Japanese male adults aged 18 to 23 years (Age 20.8Ϯ1.4 yrs). The subjects performed the pursuit rotor test for 1 min in 20 trials with a 1-min interval alternately using the dominant and non-dominant hands. After continuing for 10 trials, a 5-min rest was taken. The measurement order was randomly assigned. Contact time of a steel pen and a target was measured in units of 1/10 sec. The measurements showed a constant increasing tendency at every trial until the 6th trial in both hands. Significant linear regressions were identified, but the increase-rate of the dominant hand was significantly larger. Individual differences showed a decreasing tendency at every trial in the dominant hand, but in the non-dominant hand it increased until the 4th trial then decreased. The relationships between measurements of the 1st and 10th trials in both hands and both hands in the 1st or 10th trial were not high. The performance of the pursuit rotor test improves at every trial in both hands, but the improvement rate decreases after the 7th trial. The improvement rate of the dominant hand is high. The change in individual differences differs in both hands and the relationship between the measurements is not high. It can be judged that the practice effect of the pursuit rotor test differs in the dominant and non-dominant hands.

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“…The testing run lasted for approximately 25 min and was administered using a Tandy 1400FD Laptop Computer and a Tandy Color Computer 3 (CoCo) (Tandy Pursuit MeterIII © (PMIII). The PMIII (Kunsman et al 1991b) is a pursuit tracking task derived from the PMII (Ferslew et al 1982), in which subjects trace a computer-generated wave using a joystick controller. The pattern is a simple sine wave that traverses the monitor screen in approximately 70 s (one sweep).…”

Section: Performance Tasksmentioning

confidence: 99%

The effects of temazepam and ethanol on human psychomotor performance

Kunsman

Manno

Przekop

et al. 1992

Eur J Clin Pharmacol

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We have studied the effects of temazepam, alone and in combination with ethanol, on psychomotor performance in six healthy men and women using a battery of five microcomputer-based tasks before and 30, 90, and 150 min after treatment. The tests were pursuit tracking, divided attention, two four-choice reaction time tests and tapping rate. The entire battery required 25 min. The subjects also reported their mood at each testing time using a computerized bipolar mood scales test. Temazepam (15 mg) plus ethanol (peak blood concentration of 11 mmol.l-1) significantly impaired divided attention, tracking, and reaction time over a 3 h period. There was significant impairment versus placebo for each drug alone on some of the tests. Plasma and urine concentrations of temazepam and temazepam glucuronide were measured, but there was no significant temporal correlation between impairment and drug or metabolite concentration in either plasma or urine. The subjects knew when they had taken ethanol, but could not discriminate temazepam from ethanol whether alone or in combination. The subjects rated their performance similarly after each of the four treatment conditions. The performance on the tracking, divided attention, and PAB reaction time tasks used in this study was impaired by a combination of temazepam and ethanol in doses which may not cause impairment when each is given alone.

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Pursuit Meter II, a Computer-Based Device for Testing Pursuit-Tracking Performance

Cited by 16 publications

References 6 publications

Cartesian analysis: A computer-video interface for measuring motion without physical contact

Cartesian analysis: A computer-video interface for measuring motion without physical contact

The Practice Effect and Its Difference of the Pursuit Rotor Test with the Dominant and Non-dominant Hands

The effects of temazepam and ethanol on human psychomotor performance

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