A Studv Of The Visual-Tactile Lattice Stimulation Device

Perception and cognitive psychology is an important branch of psychology.It mainly studies people's advanced psychological processes,such as:perception,touch,thinking,language and even the process of human brain processing and information managing.Aiming at this advanced psychological research,it is necessary to have a scientific theoretical basis and a large amount of data to support the reliability and authenticity of the research.Therefore,the design of scientific psychological experiments can not only obtain a large amount of experimental data,but also its experimental results are an important means to verify the basic theory of psychology.However,some sensory psychology experiments are subject to experimental equipment.In order to solve the limitations of existing psychological test experimental devices,this paper designs a lattice stimulation experimental testing device which can be used in the field of perception and cognitive psychology.The performance of this device is efficient,stable and meets the high accuracy requirements of psychological experiments,and can be used in a series of cognitive science research experiments related to vision and touch in the field of psychology.Based on the current requirements of experiments and devices in the field of psychology,this paper comprehensively analyzes the research status and development trend of the visual and tactile experimental devices at home and abroad,compares the advantages and disadvantages of the existing visual and tactile devices,then designsthe lattice stimulation device that combines vision and touch.The whole device is divided into two parts:the upper computer and the lower computer.The hardware circuit design is mainly concentrated in the lower computer part.With the single-chip microcomputer as the core,the minimum control system of the single-chip microcomputer is composed around some peripheral circuits,and then the whole hardware system of the device is composed of the peripheral drive circuit visual lattice drive circuit,tactile lattice drive circuit,visual stimulation device and tactile stimulation device.The circuit design is completed in the software to judge the correctness of the hardware circuit,and the circuit board drawing is completed in the EDA software.Finally,the circuit board of the device described in this paper is manufactured.The software design is divided into the upper computer control program and the lower computer control program.The upper computer uses Visual Studio software to write the function interface and the bottom driver,so as to communicate with the lower computer and send the control command to the lower computer.The program of the lower computer is programmed by Keil software to complete the data processing of the upper computer and execute the command to control the visual stimulation device and the tactile stimulation device.In order to verify the reliability and accuracy of the device,the function test,response test,illumination test,temperature performance test and user evaluation experiment of the device are designed to further verify the performance stability of the device,and can be applied to the experiments of perception and cognitive psychology.And simply verified the influence relation between visual and tactile.At the end of the paper,the analysis,summary and prospect are given.