Experimental system for measuring brain load in multi-task visual cognition and method

An experimental system, multi-tasking technology, applied in the field of brain load assessment, can solve problems such as short-term memory loss, inability to compare mental load conditions, and different task properties, so as to ensure safety, reduce cognitive fatigue, and reduce brain load. load effect

Active Publication Date: 2013-08-28
XI AN JIAOTONG UNIV
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AI Technical Summary

Problems solved by technology

These methods take time requirements, physical demands and effort as basic elements, and mainly use reaction time, reaction speed and accuracy as evaluation indicators. The disadvantage is that subjective evaluation methods are limited by short-term memory loss, and the nature of tasks is different. Likewise, it is impossible to come up with a broadly applicable performance parameter, so mental workload profiles cannot be compared across operations

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  • Experimental system for measuring brain load in multi-task visual cognition and method
  • Experimental system for measuring brain load in multi-task visual cognition and method
  • Experimental system for measuring brain load in multi-task visual cognition and method

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Embodiment Construction

[0035] The specific implementation of the present invention selects the instrument as the visual recognition object, and the present invention will be further described in detail below in conjunction with the accompanying drawings:

[0036] 1. Experimental system for measuring brain load in multi-task visual cognition

[0037] The experimental system of the brain load measurement in the multi-task visual cognition provided by the present invention is as follows: figure 1 and figure 2shown. Wherein the adjustable seat 7 is the basic component of the test bench, consisting of a cushion, a backrest and an adjustment mechanism. The frame of the adjustable seat 7 is welded with steel pipes, and directly fixed on the base plate of the test platform with bolts. The strength of the seat meets the requirements of GB15083-1994. Add welded raised side support plates or support ribs on both sides of the seat cushion and backrest, fill the foam core to support the cushion, so as to ens...

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Abstract

The invention provides an experimental system for measuring brain load in multi-task visual cognition and a method. The system consists of an adjustable seat, a virtual vision interface display device and electroencephalogram signal acquiring and processing equipment, the adjustable seat and the virtual vision interface display device are used for simulating visual cognition tasks under various work conditions, the electroencephalogram signal acquiring and processing equipment is used for synchronously acquiring human electroencephalogram signals in a simulated visual cognition process, and acquisition and extraction of the electroencephalogram signals in a visual cognition scheme under the multiple tasks can be realized by the experimental system. The electroencephalogram signals of visual cognition under the different tasks are compared by means of analysis of electroencephalogram complexity, and the corresponding relationship between brain waves and brain activities is obtained, and accordingly brain load conditions in a visual cognition process can be judged.

Description

【Technical field】 [0001] The invention belongs to the technical field of ergonomics and relates to an experimental system and an experimental method for evaluating brain load by using the experimental system to carry out multi-task visual information testing. 【Background technique】 [0002] Accurate cognition of multi-task visual information is an important means to monitor the operating status of equipment and obtain external environmental information in the human-computer interface interaction system. The most direct manifestation of multi-task visual information is graphics or text, and it can monitor different tasks and The combination of state graphics or text is the instrument, so the cognition of the instrument is very typical in the acquisition of multi-task visual information. With the improvement of automation level, the mechanical instruments of many large-scale equipment have been replaced by graphical and interactive virtual instruments, and the amount of visual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/16A61B5/0476
Inventor 李晓玲洪军姜颖徐枫姚磊
Owner XI AN JIAOTONG UNIV
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