Video: Kev tiv thaiv ib sab hauv qhov muag yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Pom txwv tsis pub
Lateral inhibition nce qhov sib txawv thiab ntse hauv kev teb pom. Pom ib sab inhibition yog cov txheej txheem uas cov hlwb photoreceptor pab lub hlwb kom paub qhov sib txawv hauv cov duab. Electromagnetic lub teeb nkag mus rau hauv qhov muag los ntawm kev hla lub qhov muag, tus menyuam, thiab lub lens (optics)
Xav txog qhov no, dab tsi yog qhov cuam tshuam sab hauv retina?
Lateral inhibition yog qhov tshwm sim uas neuron cov lus teb rau qhov kev txhawb siab yog txwv los ntawm kev zoo siab ntawm ib tus neeg nyob ze neuron. Lateral inhibition tau raug sim sim hauv lub qhov muag thiab LGN ntawm cov kab mob [47].
Ib qho ntxiv, dab tsi yog qhov cuam tshuam sab hauv ntawm cov retina thiab yuav ua li cas yam zoo sib txawv yam tsis muaj nws? Txawv photoreceptors nyob rau hauv lub qhov muag teb rau qib sib txawv ntawm lub teeb. Qhov no ua rau cov npoo nruab nrab ntawm thaj chaw tsaus thiab tsaus ntuj tshwm tseem ceeb tshaj lawv yuav ua lwm yam. Piv txwv li, tsis muaj kev tiv thaiv ib sab , ciam teb ntawm cov nplais dub thiab cov nplais ib pliag yuav tshwm tsis pom tseeb
Yog li ntawd, lub hom phiaj ntawm kev tiv thaiv ib sab yog dab tsi?
Lateral inhibition txhim kho qhov sib piv ntawm qhov muaj zog thiab tsis muaj zog kov cov cim. Cov cim qhia muaj zog (ntawm qhov chaw sib cuag) txwv cov cell nyob sib ze mus rau qib siab dua li cov cim tsis muaj zog (ib puag ncig mus rau qhov chaw sib cuag). Cov dej num no tso cai rau lub hlwb txiav txim siab qhov tseeb ntawm kev sib cuag.
Cov hlwb twg yog lub luag haujlwm rau kev tiv thaiv ib sab?
Lateral inhibition yog tsim nyob rau hauv lub retina los ntawm interneurons (kab rov tav thiab amacrine hlwb ) lub pas dej ua ke hla lub zej zog ntawm presynaptic pub rau tom ntej hlwb (photoreceptors thiab bipolar hlwb ) thiab xa inhibitory teeb liab rov qab rau lawv [14–17] (Daim duab 2).
Pom zoo:
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