首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Theories accounting for the physical process of color vision have undergone many changes since 1801, when Thomas Young first sug
Theories accounting for the physical process of color vision have undergone many changes since 1801, when Thomas Young first sug
admin
2013-05-29
80
问题
Theories accounting for the physical process of color vision have undergone many changes since 1801, when Thomas Young first suggested that three types of cone in the retina respond to stimulus from red, green and blue light, or a mixture of these three basic colors. This concept of "additive" color has been retained with modifications made, as new discoveries of the eye’s functions have been uncovered. Today, the most popular theory is that there are color opponent cells in the eye that work to excite response to one basic color and inhibit another, while achromatic cells respond to whiteness or darkness. The interactions between these cells produce the huge range of colors that we see.
When it comes to naming these colors, however, an entirely different process takes over language. At one stage it was believed that language defined how one viewed the world, by restricting perceptions to terms available within each language. Thus the Dani people of New Guinea were thought to see everything literally in black and white, as these were the only color terms within their language.
Experiments over a wide range of colors, however, showed that there were 11 basic color terms. In English these colors are black, white, red, yellow, green, blue, brown, purple, pink, gray, and orange. In any culture with less than these 11 basic terms, such as the Dani, the choice of basic names will follow the order above. What was striking about the study was that the Dani were able to perceive color variations as ably as anyone from a culture with the full number of basic color terms. This led researchers to the unsurprising conclusion that although languages differ, perceptions remain identical.
How many different kinds of cells are there thought to be in today’s theory of color vision?
选项
A、One
B、Two
C、Three
D、Four
答案
B
解析
文章第一段提到:the most popular theory is that there are color opponent cells…while achromatic cells,由此可知,应有两种细胞,故应选B。
转载请注明原文地址:https://kaotiyun.com/show/ZOTO777K
0
研究生英语学位课统考(GET)
相关试题推荐
PersonalcomputersandtheInternetgivepeoplenewchoicesabouthowtospendtheirtime.Somemayusethisfreedomtosharele
MostpeoplewhodevelopedLymedisease,atick-borninfectionthat’sendemicinpartsoftheNortheastandMidwest,areeasilyc
ThedevelopmentandwidespreaduseofcomputertechnologyandtheInternethavetransformedhowwecommunicate,howwecommunica
ThedevelopmentandwidespreaduseofcomputertechnologyandtheInternethavetransformedhowwecommunicate,howwecommunica
Howmuchpaindoanimalsfeel?Thisisaquestionwhichhascausedendlesscontroversy.Opponentsofbiggameshooting,forexam
Some23millionadditionalU.S.residentsareexpectedtobecomemoreregularusersoftheU.S.healthcaresysteminthenext
Peoplehavebeenpaintingpicturesforatleast30,000years.Theearliestpictureswerepaintedbypeoplewhohuntedanimals.
Agreatdealofattentionisbeingpaidtodaytotheso-calleddigitaldivide—thedivisionoftheworldintotheinfo(informatio
Afteryou’vestartedtomasterthetechniques,therealstruggleisjustbeginning.It’s______thatmakesyougreat.
随机试题
一平面简谐波在弹性媒质中传播时,某一时刻在传播方向上一质元恰好处在负的最大位移处,则它的:
关于税务代理关系确立的前提,下列表述不正确的是()。
关于无效合同和可撤销合同,下列说法中,不符合合同法律制度规定的有()。
幼儿对音乐美的感受主要是借助于()
(2018年山西太原杏花岭事业)党的十九届二中全会指出,国家()是事关全局的重大政治体制改革。要依法建立党统一领导的反腐败工作机构,构建集中统一、权威高效的国家监察体系,实现对所有行使公权力的公职人员监察全覆盖。
下列民事权利受到侵害时,受害人可以行使正当防卫的民事权利的是()。
已知向量组α1,α2,α3,α4线性无关,则向量组2α1+α3+α4,α2-α4,α3+α4,α2+α3,2α1+α2+α3的秩是().
证明,其中n为自然数.
下列关于IPS的描述中,错误的是()。
ThepeopleoftheUSAhavebeenopposedtoacentralizedgovernmentsincelongbeforetheRevolutionof1776.Whenthe13coloni
最新回复
(
0
)