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METHOD OF PASS-BAND DETERMINATION IN RECEPTIVE FIELDS OF NEURONES OF VISUAL SYSTEM
METHOD OF PASS-BAND DETERMINATION IN RECEPTIVE FIELDS OF NEURONES OF VISUAL SYSTEM
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机译:视觉系统神经元感受野的通带测定方法
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摘要
FIELD: medicine.;SUBSTANCE: invention refers to medicine and can be used for research of the visual analyser. After presentation of light flickers with initial frequency, show serially reduced initial - decrement and enlarged initial - incremental frequencies with the set constant period to the examinee, a difference between which be changed until the examinee determines a threshold of a distinction zone of light flickers shown frequencies. At the first stage of measurements with constant rate about 2 Hz/s enlarge a difference between shown frequencies until the examinee determines supraliminal value of the distinction zone of decrement and incremental frequencies. At the second stage of measurements reduce the difference between shown frequencies of the light flickers, fixed on the first stage of measurements discretely with step of 0.3 Hz, until the examinee determines subliminal value of the distinction zone of shown frequencies. At the third stage of measurements enlarge the difference between shown frequencies of the light flickers, fixed on the second stage of measurements discretely with step of 0.1 Hz, until the examinee determines threshold value of the zone of decrement and incremental frequencies distinction. A strip of distinction of light parts ΔF in Hz is calculated under the formula: where Ti and Td - the periods of light flickers in ms, corresponding incremental and decrement frequencies fixed at the third stage of measurements.;EFFECT: invention allows reducing an error of measurements, thereby to enlarge their accuracy.;1 ex
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机译:技术领域:药物:发明是指药物,可以用于视觉分析仪的研究。在以初始频率显示闪烁之后,向考生显示以设置的恒定周期依次减小的初始-递减频率和扩大的初始-增量频率,两者之间的差值将一直变化,直到考生确定所示的闪烁区分区阈值为止频率。在以大约2 Hz / s的恒定速率进行测量的第一阶段,扩大显示频率之间的差异,直到受检者确定递减频率和递增频率的区别区域的sup上值。在第二阶段的测量中,减小闪烁的所示频率之间的差异,以0.3 Hz的步长离散地固定在第一阶段的测量中,直到受检者确定所示频率的区别区域的阈值以下。在测量的第三阶段,放大显示的闪烁频率之间的差异,以0.1 Hz的步长离散地固定在测量的第二阶段,直到受检者确定递减区域和增量频率区分的阈值。根据以下公式计算以Hz为单位的轻部分Δ F的区别带:其中T i Sub>和T d Sub>-以ms为单位的闪烁周期,相应的增量和减量频率固定在测量的第三阶段。允许减少测量误差,从而提高测量精度。1ex
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