The selective and simple reaction time measuring device is a commonly used experimental instrument in psychological teaching, mainly used for the study of reaction time. This instrument measures the reaction speed under different sound and light conditions and under different light and color conditions. Using this instrument, you can also determine the response speed of traffic professionals and sports athletes, and provide scientific testing methods for training and selection of various professionals.
The simple response is to compare the difference in response time between the visual and auditory organs. The instrument is lit by four semiconductor four-color light-emitting diodes as light stimulation, and the sound stimulation is sounded by the piezoelectric buzzer inside the instrument, and the four-hole photoelectric response key (any hole) is used as the subject. React parts.
The selection response is to compare the selection response time under four-color light stimulation. The instrument uses four semiconductor four-color light-emitting diodes as light stimulation, and four-hole photoelectric response keys corresponding to four colors as reaction components.
The 89C52 single-chip computer is used inside the instrument to perform a full range of automatic control on the function selection of the whole machine, the presentation of stimuli, the response of the subject, the measurement of the reaction time, the statistics of the data, and the printout of the data. It becomes simpler and more convenient.
Time range for simple reaction 100μs ～ 99.9999 s Operating temperature 0 ～ 40 ℃
Select response time measurement range 100μs ~ 99.9999 s Stimulation presents red, green, yellow, blue semiconductor light-emitting diodes, piezoelectric buzzer resolution 100 μs response key four-hole photoelectric non-contact response key accuracy 1/10000 ± 1 Character size time display 8-bit high-brightness LED digital tube response keyboard size using power supply AC 220 V ± 22 V 50 Hz weight 1 kg power consumption 10 W
1. Determination when selecting reaction:
Insert the RS232-9 core plug of the photoelectric response keyboard into the socket on the host. If you want to connect the printer, please also insert the RS232-25 core plug connected to the printer into the corresponding socket on the host. Insert the plug of the host connected to the 220V AC power supply into the socket of the 220V power grid. After confirming that all connections are correct and reliable, turn on the power switch on the host, and the display shows "n1 ---- n4":
1. Press the No. 1 key and select n1 as the selection response, the display shows "------ 20", which is the number of tests.
2. Press the No. 1 function key, select the test times, the display will show "------ 40", "------ 60", "------ 80", "- --- 20 ", the instrument is automatically set at 20 times.
3. After selecting the number of tests, press the No. 2 start key in the main test to start the test.
4. The light stimuli of the four colors will be presented automatically, the order of presentation is irregular, but the total number of times that each color stimulus is presented. It will be 1/4 of the set number of tests. If the number of tests is 20, the total number of presentations for each color is 5; if the number of tests is 60, the total number of presentations for each color is 15 .
5. Based on the presentation of stimuli of different colors, the subject presses the circular hole of the corresponding color on the reaction keyboard with his finger. The instrument will be automatically treated as an error if it is pressed incorrectly, and the time will not be counted. If the time exceeds 99.9999S, it will be handled as an error.
6. When the set number of tests is completed, the buzzer in the instrument will automatically sound for 1 second to inform the end of the experiment.
7. Press the No. 3 display key continuously, the display will show:
1 ― ###### Total average time
2 ï¼ ###### The average reaction time of red color
3 ï¼ ###### The average reaction time of green color
4 ï¼ ###### The average reaction time of blue color
5 ï¼ ###### The average reaction time of yellow color
6 ï¼ ###### The number of tests set by the experiment
7 ――――― ## Number of errors
8. If the instrument is connected to a printer, you can press the No. 1 function key to print the test results after the experiment. The printer print format is as follows: (Take 20 tests as an example)
Print content notes
Name: Fill in the participant's name
01.R ～ 02.1393s
02.B ～ 00.8260s
03.B ～ 00.6676s
04.Y ～ 00.2764s The first test.
Color ～ time
05.B ～ 00.5369s R ï¼Represents red
06.R ～ 00.4068s G ï¼Represent green
07.G ～ 00.4893s B ï¼Represent blue
08.G ～ 00.4815s Y ï¼Represents yellow
09.R ～ 00.4010s Error ï¼ means error
10.Y ～ Error
11.G ～ 00.5560s
12.R ～ 00.4338s
13.Y ～ 00.8206s
14.R ～ 00.5909s
15.Y ～ 00.5658s
16.Y ～ 00.6042s
17.G ～ 00.4153s
18.G ～ 00.5577s
19.B ～ 00.8107s
20.B ～ 00.5191s
TA ～ 00.6367s total average time
RA ～ 00.7943s Average reaction time of red color
GA ～ 00.4999s Average reaction time of green color
BA ～ 00.6720s Average reaction time of blue color
YA ～ 00.5667s Average reaction time of yellow color
N = 20 The number of tests set by the experiment
n = 01 error times
9. If a new experiment is required, press the reset button to reset the instrument, and then follow the instructions above.
2. Measurement during simple reaction:
Insert the RS232-9 core plug of the photoelectric response keyboard into the socket on the host. If you want to connect the printer, please also insert the RS232-25 core plug connected to the printer into the corresponding socket on the host. Insert the plug of the host connected to the 220V AC power supply into the socket of the 220V power grid. After confirming that all connections are correct and reliable, turn on the power switch on the host, and the display shows "n1 ---- n4":
1. Press key 4 and select n4 as the simple response, the display shows "L ------ S"
2. If you want to perform the light reaction time test, press the No. 1 key to select the L light reaction time test; if you want to select the sound reaction time test, press the No. 4 key to select the sound reaction time test After selecting, the display shows "------ 20" and the number of tests.
3. Press the No. 1 function key, select the test times, the display will show "------ 40", "------ 60", "------ 80", "- --- 20 ", the instrument is automatically set at 20 times.
4. After selecting the number of tests, the participant puts his finger in any of the four holes of the reaction keyboard. The main tester presses the No. 2 start key to start the test.
5. The instrument will automatically present sound or light (lights of four colors are on at the same time) stimuli. According to the presentation of sound (light) stimuli, the subject leaves the circular hole on the reaction keyboard, and the instrument will automatically record the stimulus to the subject The time between the finger leaving the hole of the reaction keyboard is the reaction time of sound (light).
6. During the experiment, if the subject's finger is not put back into the hole of the reaction keyboard, the instrument will automatically enter the waiting state until the subject's finger is put back into the hole of the reaction keyboard for the next test.
7. When the set number of tests is completed, the buzzer in the instrument will automatically sound for 1 second to inform the end of the experiment.
8. Press the No. 3 display key continuously, the display will show:
1 ― ###### Average response time
2 ――――― ## The number of tests set by the experiment
9. If the instrument is connected to the printer, you can press the No. 2 function key after the experiment to print the test results. The printer print format is as follows: (Take light stimulation, 20 tests as an example)
Print content notes
Name: Fill in the participant's name
01.L ～ 00.2034s
02.L ～ 00.1759s
03.L ～ 00.1797s
04.L ～ 00.1565s Test serial number. Type of stimulation. Reaction time
05.L ～ 00.4470s
06.L ～ 00.1350s L ï¼Represents light stimulation
07.L ～ 00.2032s S ï¼Represents acoustic stimulation
08.L ～ 00.1453s
09.L ～ 00.1665s
10.L ～ 00.1517s
11.L ～ 00.1725s
12.L ～ 00.3196s
13.L ～ 00.1682s
14.L ～ 00.0233s
15.L ～ 00.1080s
16.L ～ 00.1612s
17.L ～ 00.1947s
18.L ～ 00.1784s
19.L ～ 00.1724s
20.L ～ 00.1764s
T. A. ~ 00.2809s average response time
N = 20 The number of tests set by the experiment
10. If a new experiment is required, press the reset button to reset the instrument, and then follow the instructions above.
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