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Influences of yellow and green lights on the visual response of western flower thrips and field verification

International Journal of Agricultural and Biological Engineering 2022年第4期15卷 49-56页

作者： Qihang Liu Mingqian Zhao Jin Miao Guangchun Fu Yuqing Wu Henan Institute of Science and Technology Xinxiang 453003HenanChina Institute of Plant Protection Henan Academy of Agricultural Sciences Zhengzhou 450002China

This study aimed to determine the effects of spectral light characteristics on the visual response of the western flower thrips,the strengthening mechanism of thrips response behavior regulated by light,and thrips response characteristics to contrast *** with combined and single wavelength were tested by using a self-made behavior response device for *** sources for trapping thrips were made to verify the trapping effect on thrips in a greenhouse,and the reasons for changes in thrips behavior were analyzed to characterize the mechanism of their phototactic *** results showed that the light mode(single,contrast,combined light)affected the thrips visual response and approach response,whereas in contrast light,the effects were *** light inhibited the thrips visual response,and when the illumination increased,the thrips visual response to single and combination light intensified,and the thrips approach sensitivity to green light increased in contrast and combination ***,the light mode did not affect the thrips visual response and sensitivity to spectral light *** degree of thrips visual response to yellow light was stronger than that to green light,while the degree of thrips visual response to green light was stronger than that to yellow light,indicating that the photo-induced mechanism of the thrips visual response differed from that of the thrips approach ***,in the greenhouse,the trapping effect of different light sources on thrips was positively correlated with *** trapping effect of green light was optimal,followed by a yellow light source,while the difference of light intensity(illumination,illumination energy)and its photo-thermal intensity between yellow and green light was the reason for the differences in the degree of visual trends and the trapping effects of ***,the sensitivity of thrips responding to different light depended on the difference in the hete

关键词： pest control western flower thrips yellow and green light visual response field verification light mode

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Influences of DRA and non-DRA vision on the visual responses of locusts stimulated by linearly polarized and unpolarized lights

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International Journal of Agricultural and Biological Engineering 2023年第3期16卷 15-22页

作者： Shengguang Zou Tao Liu Yicheng Ma Pingchuan Zhang Qihang Liu School of Computer Science&Technology Henan Institute of Science and TechnologyXinxiang 453003HenanChina Inner Mongolia Agricultural University Hohhot 010018China Key Laboratory of the Development and Resource Utilization of Biological Pesticide in Inner Mongolia Hohhot 010019China

Locust and grasshopper plagues pose a serious threat to crop production in many areas ***,there is a lack of effective,quick-acting methods to control such *** exploiting the phototactic response of these insects are receiving increasing *** current study investigated the effect of linearly polarized and unpolarized light on locust phototactic and polarotactic responses,in particular the function of their dorsal rim area(DRA)and non-DRA visual *** results showed that the polarotactic function weight of DRA vision was stimulated by linearly polarized ultraviolet(UV)and violet light,the phototactic function weight was induced by blue,green,and orange light,and under linearly polarized light,the functional effect of DRA vision was strongest in response to linearly polarized violet ***,the locust visual response effect was related to spectral light attributes,with the linear polarization effect intensifying in response to the short-range vision sensitivity of non-DRA visual fields,whereas DRA vision regulated the short-range sensitivity of compound eye *** illumination increased,the synergistic enhancement effects of linearly polarized ultraviolet and violet light were significant,whereas the visual sensitivity was restricted significantly by linearly polarized blue,green,or orange ***,non-DRA vision determined,while DRA vision enhanced,the phototactic response sensitivity,whereas,in linearly polarized UV or violet light,non-DRA vision determined,while DRA vision enhanced,the visual trend and polarotaxic aggregation sensitivity,with opposite effects in linearly polarized blue,green,or orange *** illumination increased,there was a driving effect caused by linearly polarized violet light on non-DRA vision,whereas at short-wave lengths,the control effect induced by linearly polarized orange light was optimal;however,the photo-induced effect of linearly polarized violet light and the visual distan

关键词： Locusta migratoria linearly polarized light spectral light visual response DRA and non-DRA vision

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The mechanism underlie the normalization:a spiking network

The mechanism underlie the normalization:a spiking network

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中国神经科学学会第十届全国学术会议

作者： Xiao-Long ZOU Si WU Da-Hui WANG School of Systems Science and National Key Laboratory of Cognitive Neuroscience and Learning Beijing Normal University School of Brain and Cognitive Sciences and National Key Laboratory of Cognitive Neuroscience and Learning Beijing Normal University

Divisive normalization is a hallmark of neural computation in the olfactory system,retina,visual cortex,media temporal,and lateral intra parietal area,where the response of neuron is divided by a common factor typically including the summed activity of a pool of *** suggested that normalization results from GABA-mediated inhibition or multiple circuits and mechanism operating and cascading across multiple ***,the GABA inhibition plays small role in normalization in mammalian visual area and few researches demonstrate how normalization emerges from the interaction between neural ***,we apply a physiology plausible spiking network to explore the mechanism underlying the *** network consists of both excitatory and inhibitory neurons,arranged as a ring according to their preferring *** excitatory and inhibitory neurons share a similar selectivity and the back and forth connections between two types of neuron follow Gaussian *** network displays the normalization phenomenon in visual cortex,such as contrast saturation,cross-orientation suppression,and enhancement or suppression of the mask on the *** network can also display normalization of value encoding in lateral intra parietal area by changing the connectivity and the background *** results indicate that normalization greatly rehes on the competition and recurrent interaction between inhibitory and excitatory neurons.

关键词： normalization spiking network visual response value encoding

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