作者：(美)拉斯韦尔
出版社：中国传媒大学出版社
格式: AZW3, DOCX, EPUB, MOBI, PDF, TXT
社会传播的结构与功能（英文版）试读：
出版说明
“新闻学与传播学经典丛书·英文原版系列”，选取了在新闻学与传播学历史上具有里程碑意义的大师经典名作，如传播学“四大奠基人”哈罗德·拉斯韦尔、保罗·拉扎斯菲尔德等，及加布里埃尔·塔尔德、罗伯特·帕克、哈罗德·伊尼斯、马歇尔·麦克卢汉、库尔特·卢因、卡尔·霍夫兰等这些学界耳熟能详的名家佳作。这些是传播学与新闻学的奠基之作，也是现代新闻学与传播学发展的基础。许多名作都多次再版，影响深远，历久不衰，成为新闻学与传播学的经典。此套丛书采用英文原版出版，希望读者能读到原汁原味的著作。随着中国高等教育的教学改革，广大师生已不满足于仅仅阅读国外图书的翻译版，他们迫切希望能读到原版图书，希望能采用国外英文原版图书进行教学，从而保证所讲授的知识体系的完整性、系统性、科学性和文字描绘的准确性。此套丛书的出版便是满足了这种需求，同时可使学生在专业技术方面尽快掌握本学科相应的外语词汇，并了解先进国家的学术发展方向。
本系列在引进英文原版图书的同时，将目录译为中文，作为对原版的一种导读，供读者阅读时参考。
从事经典著作的出版，需要出版人付出不懈的努力，好在有本丛书的主编展江教授和何道宽教授的大力扶持，我们得以在学术出版的道路上走的更远。我们自知本套丛书也许会有很多缺陷，虚心接受读者提出的批评和建议。中国传媒大学出版社
The Act of Communication
Convenient way to describe an act of communication is to answer the following questions：WhoSays WhatIn Which ChannelTo WhomWith What Effect？
The scientific study of the process of communication tends to concentrate upon one or another of these questions.Scholars who study the “who，” the communicator， look into the factors that initiate and guide the act of communication.We call this subdivision of the field of research control analysis.Specialists who focus upon the “says what”engage in content analysis.Those who look primarily at the radio， press， film， and other channels of communication are doing media analysis.When the principal concern is with the persons reached by the media， we speak of audience analysis.If the question is the impact upon audiences， the problem is effect analysis.
Whether such distinctions are useful depends entirely upon the degree of refinement which is regarded as appropriate to a given scientific and managerial objective.Often it is simpler to combine audience and effect analysis， for instance， than to keep them apart.On the other hand， we may want to concentrate on the analysis of content， and for this purpose subdivide the field into the study of purport and style， the first referring to the message， and the second to the arrangement of the elements of which the message is composed.
Structure and Function
Enticing as it is to work out these categories in more detail， the present discussion has a different scope.We are less interested in dividing up the act of communication than in viewing the act as a whole in relation to the entire social process.Any process can be examined in two frames of reference， namely， structure and function； and our analysis of communication will deal with the specializations that carry on certain functions， of which the following may be clearly distinguished： （1） the surveillance of the environment； （2） the correlation of the parts of society in responding to the environment； （3） the transmission of the social heritage from one generation to the next.
Biological Equivalences
At the risk of calling up false analogies， we can gain perspective on human societies when we note the degree to which communication is a feature of life at every level.A vital entity， whether relatively isolated or in association， has specialized ways of receiving stimuli from the environment.The single-celled organism or the many-membered group tends to maintain an internal equilibrium and to respond to changes in the environment in a way that maintains this equilibrium.The responding process calls for specialized ways of bringing the parts of the whole into harmonious action.Multi-celled animals specialize cells to the function of external contact and internal correlation.Thus， among the primates， specialization is exemplified by organs such as the ear and eye， and the nervous system itself.When the stimuli receiving and disseminating patterns operate smoothly， the several parts of the animal act in concert in reference to the environment （“feeding，”“fleeing，”“attacking”）.
In some animal societies certain members perform specialized roles， and survey the environment.Individuals act as “sentinels，”standing apart from the herd or flock and creating a disturbance whenever an alarming change occurs in the surroundings.The trumpeting， cackling， or shrilling of the sentinel is enough to set the herd in motion.Among the activities engaged in by specialized “leaders”is the internal stimulation of “followers”to adapt in an orderly manner to the circumstances heralded by the sentinels.
Within a single， highly differentiated organism， incoming nervous impulses and outgoing impulses are transmitted along fibers that make synaptic junction with other fibers.The critical points in the process occur at the relay stations， where the arriving impulse may be too weak to reach the threshold which stirs the next link into action.At the higher centers， separate currents modify one another， producing results that differ in many ways from the outcome when each is allowed to continue a separate path.At any relay station there is no conductance， total conductance， or intermediate conductance.The same categories apply to what goes on among members of an animal society.The sly fox may approach the barnyard in a way that supplies too meager stimuli for the sentinel to sound the alarm.Or the attacking animal may eliminate the sentinel before he makes more than a feeble outcry.Obviously there is every gradation possible between total conductance and no conductance.
Attention in World Society
When we examine the process of communication of any state in the world community， we note three categories of specialists.One group surveys the political environment of the state as a whole， another correlates the response of the whole state to the environment， and the third transmits certain patterns of response from the old to the young.Diplomats， attaches， and foreign correspondents are representative of those who specialize on the environment.Editors， journalists， and speakers are correlators of the internal response.Educators in family and school transmit the social inheritance.
Communications which originate abroad pass through sequences in which various senders and receivers are linked with one another.Subject to modification at each relay point in the chain， messages originating with a diplomat or foreign correspondent may pass through editorial desks and eventually reach large audiences.
If we think of the world attention process as a series of attention frames， it is possible to describe the rate at which comparable content is brought to the notice of individuals and groups.We can inquire into the point at which “conductance” no longer occurs； and we can look into the range between “total conductance” and “minimum conductance”.The metropolitan and political centers of the world have much in common with the interdependence， differentiation， and activity of the cortical or subcortical centers of an individual organism.Hence the attention frames found in these spots are the most variable， refined， and interactive of all frames in the world community.
At the other extreme are the attention frames of primitive inhabitants of isolated areas.Not that folk cultures are wholly untouched by industrial civilization.Whether we parachute into the interior of New Guinea， or land on the slopes of the Himalayas， we find no tribe wholly out of contact with the world.The long threads of trade， of missionary zeal， of adventurous exploration and scientific field study， and of global war reach far distant places.No one is entirely out of this world.
Among primitives the final shape taken by communication is the ballad or tale.Remote happenings in the great world of affairs， happenings that come to the notice of metropolitan audiences， are reflected， however dimly， in the thematic material of ballad singers and reciters.In these creations faraway political leaders may be shown supplying land to the peasants or restoring an abundance of game to the hills.
When we push upstream of the flow of communication， we note that the immediate relay function for nomadic and remote tribesmen is sometimes performed by the inhabitants of settled villages with whom they come in occasional contact.The re-layer can be the school teacher， doctor， judge， tax collector， policeman， soldier， peddler， salesman， missionary， student； in any case he is an assembly point of news and comment.
More Detailed Equivalences
The communication processes of human society， when examined in detail， reveal many equivalences to the specializations found in the physical organism and in the lower animal societies.The diplomats， for instance， of a single state are stationed all over the world and send messages to a few focal points.Obviously， these incoming reports move from the many to the few， where they interact upon one another.Later on， the sequence spreads fanwise according to a few-to-many pattern， as when a foreign secretary gives a speech in public， an article is put out in the press， or a news film is distributed to the theaters.The lines leading from the outer environment of the state are functionally equivalent to the afferent channels that convey incoming nervous impulses to the central nervous system of a single animal， and to the means by which alarm is spread among a flock.Outgoing， or efferent， impulses display corresponding parallels.
The central nervous system of the body is only partly involved in the entire flow of afferent-efferent impulses.There are automatic systems that can act on one another without involving the “higher” centers at all.The stability of the internal environment is maintained principally through the mediation of the vegetive or autonomic specializations of the nervous system.Similarly， most of the
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