Jean Berko Gleason (born 1931) is an American
psycholinguist
Psycholinguistics or psychology of language is the study of the interrelation between linguistic factors and psychological aspects. The discipline is mainly concerned with the mechanisms by which language is processed and represented in the mind ...
and
professor emerita
''Emeritus/Emerita'' () is an honorary title granted to someone who retirement, retires from a position of distinction, most commonly an academic faculty position, but is allowed to continue using the previous title, as in "professor emeritus".
...
in the Department of Psychological and Brain Sciences at
Boston University
Boston University (BU) is a Private university, private research university in Boston, Massachusetts, United States. BU was founded in 1839 by a group of Boston Methodism, Methodists with its original campus in Newbury (town), Vermont, Newbur ...
who has made fundamental contributions to the understanding of
language acquisition
Language acquisition is the process by which humans acquire the capacity to perceive and comprehend language. In other words, it is how human beings gain the ability to be aware of language, to understand it, and to produce and use words and s ...
in children,
aphasia
Aphasia, also known as dysphasia, is an impairment in a person's ability to comprehend or formulate language because of dysfunction in specific brain regions. The major causes are stroke and head trauma; prevalence is hard to determine, but aph ...
, gender differences in language development, and parent–child interactions.
Gleason created the Wug Test, in which a child is shown pictures with nonsense names and then prompted to complete statements about them, and used it to demonstrate that even young children possess implicit knowledge of
linguistic morphology
In linguistics, morphology is the study of words, including the principles by which they are formed, and how they relate to one another within a language. Most approaches to morphology investigate the structure of words in terms of morphemes, wh ...
.
Menn and
Ratner have written that "Perhaps no innovation other than the invention of the tape recorder has had such an indelible effect on the field of child language research", the "wug" (one of the imaginary creatures Gleason drew in creating the Wug Test) being "so basic to what
sycholinguistsknow and do that increasingly it appears in the popular literature
without attribution to its origins."
Biography

Jean Berko was born to Hungarian immigrant parents in
Cleveland, Ohio
Cleveland is a city in the U.S. state of Ohio and the county seat of Cuyahoga County, Ohio, Cuyahoga County. Located along the southern shore of Lake Erie, it is situated across the Canada–United States border, Canada–U.S. maritime border ...
. As a child, she has said, "I was under the impression that whatever you said meant something in some language." Her older brother's cerebral palsy made it difficult for most people to understand his speech, but
After graduating from
Cleveland Heights High School
Cleveland Heights High School is the senior high school of the Cleveland Heights-University Heights City School District, located in Cleveland Heights, Ohio, United States.
History
Cleveland Heights High School was established in 1901 by the ...
in 1949, Berko Gleason (then yet Berko) earned a
B.A. in history and literature from
Radcliffe College
Radcliffe College was a Women's colleges in the United States, women's Liberal arts colleges in the United States, liberal arts college in Cambridge, Massachusetts, that was founded in 1879. In 1999, it was fully incorporated into Harvard Colle ...
, then an
M.A. in
linguistics
Linguistics is the scientific study of language. The areas of linguistic analysis are syntax (rules governing the structure of sentences), semantics (meaning), Morphology (linguistics), morphology (structure of words), phonetics (speech sounds ...
, and a combined
Ph.D. in linguistics and
psychology
Psychology is the scientific study of mind and behavior. Its subject matter includes the behavior of humans and nonhumans, both consciousness, conscious and Unconscious mind, unconscious phenomena, and mental processes such as thoughts, feel ...
, at
Harvard
Harvard University is a private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher lear ...
; from 1958 to 1959 she was a postdoctoral fellow at
MIT
The Massachusetts Institute of Technology (MIT) is a private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of modern technology and sc ...
. In graduate school she was advised by
Roger Brown, a founder in the field of
child language acquisition. In January 1959 she married Harvard mathematician
Andrew Gleason
Andrew Mattei Gleason (19212008) was an American mathematician who made fundamental contributions to widely varied areas of mathematics, including the solution of Hilbert's fifth problem, and was a leader in reform and innovation in teaching at ...
; they had three daughters.
Most of Berko Gleason's professional career has been at
Boston University
Boston University (BU) is a Private university, private research university in Boston, Massachusetts, United States. BU was founded in 1839 by a group of Boston Methodism, Methodists with its original campus in Newbury (town), Vermont, Newbur ...
, where she served as Psychology Department chair and director of the Graduate Program in Applied Linguistics;
Lise Menn and
Harold Goodglass
Harold Goodglass (August 18, 1920 – March 18, 2002) was a prominent pioneer of neuropsychological tests and assessment, and spent much of his career investigating aphasia. The Boston VA Hospital, where he spent many years investigating brain fun ...
were among her collaborators there.
She has been a visiting scholar at
Harvard University
Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyma ...
,
Stanford University
Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
, and at the Linguistics Institute of the
Hungarian Academy of Sciences
The Hungarian Academy of Sciences ( , MTA) is Hungary’s foremost and most prestigious learned society. Its headquarters are located along the banks of the Danube in Budapest, between Széchenyi rakpart and Akadémia utca. The Academy's primar ...
. Although officially retired and no longer teaching, she to be involved in research.
Gleason is the author or co-author of some 125 papers on language development in children, language attrition, aphasia, and gender and cultural aspects of language acquisition and use; and is editor/coeditor of two widely used textbooks, ''The Development of Language'' (first edition 1985, ninth edition 2016) and ''Psycholinguistics'' (1993). She is a Fellow of the
American Association for the Advancement of Science
The American Association for the Advancement of Science (AAAS) is a United States–based international nonprofit with the stated mission of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsib ...
and of the
American Psychological Association
The American Psychological Association (APA) is the main professional organization of psychologists in the United States, and the largest psychological association in the world. It has over 170,000 members, including scientists, educators, clin ...
, and was president of the
International Association for the Study of Child Language from 1990 to 1993, and of the
Gypsy Lore Society 1996 to 1999.
She has also served on the editorial boards of numerous academic and professional journals and was associate editor of ''
Language
Language is a structured system of communication that consists of grammar and vocabulary. It is the primary means by which humans convey meaning, both in spoken and signed language, signed forms, and may also be conveyed through writing syste ...
'' from 1997 to 1999.
Gleason was profiled in ''Beyond the Glass Ceiling: Forty Women Whose Ideas Shape the Modern World'' (1996).
A
festschrift
In academia, a ''Festschrift'' (; plural, ''Festschriften'' ) is a book honoring a respected person, especially an academic, and presented during their lifetime. It generally takes the form of an edited volume, containing contributions from the h ...
in her honor, ''Methods for Studying Language Production'', was published in 2000.
In 2016 she received an honorary Doctor of Science degree from
Washington & Jefferson College
Washington & Jefferson College (W&J College or W&J) is a Private college, private Liberal arts colleges in the United States, liberal arts college in Washington, Pennsylvania, United States. The college traces its origin to three Presbyterian m ...
for her work as "a pioneer in the field of psycholinguistics",
and in 2017 the
Roger Brown Award (recognizing "outstanding contribution to the international child language community") from the
International Association for the Study of Child Language.
Since 2007 she has delivered the "Welcome, welcome" and "Goodbye, goodbye" speeches at the annual
Ig Nobel Awards ceremonies.
Selected research
Children's learning of English morphologythe Wug Test

Gleason devised the Wug Test as part of her earliest research (1958), which used nonsense words to gauge children's acquisition of morphological rulesfor example, the "default" rule that most
English plurals
English plurals include the plural forms of English nouns and English determiners. This article discusses the variety of ways in which English plurals are formed from the corresponding singular forms, as well as various issues concerning the us ...
are formed by adding an , , or sound depending on the final consonant, e.g. , , .
A child is shown simple pictures of a fanciful creature or activity,
with a nonsense name, and prompted to complete a statement about it:
:''This is a WUG. Now there is another one. There are two of them. There are two ________.''
Each "target" word was a made-up (but plausible-sounding)
pseudoword
A pseudoword is a unit of speech or text that appears to be an actual word in a certain language, while in fact it has no meaning. It is a specific type of nonce word, or even more narrowly a nonsense word, composed of a combination of phonemes whi ...
, so that the child cannot have heard it before.
A child who knows that the plural of ''witch'' is ''witches'' may have heard and memorized that pair, but a child responding that the plural of ''wug'' (which the child presumably has never heard) is ''wugs'' (/wʌgz/, using the /z/ allomorph since "wug" ends in a voiced consonant) has apparently inferred (perhaps unconsciously) the basic rule for forming plurals.
The Wug Test also includes questions involving verb conjugations, possessives, and other common derivational morphemes such as the
agentive ''-er'' (e.g. "A man who 'zibs' is a ________?"),
and requested explanations of common compound words e.g. "Why is a birthday called a birthday?"
Other items included:
*''This is a dog with QUIRKS on him. He is all covered in QUIRKS. What kind of a dog is he? He is a ________ dog.''
*''This is a man who knows how to SPOW. He is SPOWING. He did the same thing yesterday. What did he do yesterday? Yesterday he ________.''
(The expected answers were ''QUIRKY'' and ''SPOWED''.)
Gleason's major finding was that even very young children are able to connect suitable endingsto produce plurals, past tenses, possessives, and other formsto nonsense words they have never heard before, implying that they have internalized systematic aspects of the linguistic system which no one has necessarily tried to teach them.
However, she also identified an earlier stage at which children can produce such forms for real words, but not yet for nonsense wordsimplying that children start by memorizing singularplural pairs they hear spoken by others, then eventually extract rules and patterns from these examples which they apply to novel words.
The Wug Test was the first experimental proof that young children have extracted generalizable rules from the language around them, rather than simply memorizing words that they have heard, and it was almost immediately adapted for children speaking languages other than English, to bilingual children, and to children (and adults) with various impairments or from a variety of cultural backgrounds. Its conclusions are viewed as essential to the understanding of when and how children reach major language milestones, and its variations and progeny remain in use worldwide for studies on language acquisition. It is "almost universal" for textbooks in psycholinguistics and language acquisition to include assignments calling for the student to carry out a practical variation of the Wug Test paradigm. The ubiquity of discussion of the wug test has led to the wug being used as a mascot of sorts for linguists and linguistics students.
The Wug Test's fundamental role in the development of psycholinguistics as a discipline has been mapped by studying references to Gleason's work in "seminal journals" in the field, many of which carried articles referencing it in their founding issues:
According to Ratner and Menn, "As an enduring concept in psycholinguistic research, the wug has become generic, like
'kleenex''or
'xerox'' a concept so basic to what we know and do that increasingly it appears in the popular literature without attribution to its origins... Perhaps no innovation other than the invention of the tape recorder has had such an indelible effect on the field of child language research."
It has been proposed that Wug Testlike instruments be used in the diagnosis of
learning disabilities
Learning disability, learning disorder, or learning difficulty (British English) is a condition in the brain that causes difficulties comprehending or processing information and can be caused by several different factors. Given the "difficulty ...
, but in practice success in this direction has been limited.
Parent–child interactions
Another of Gleason's early papers "Fathers and Other Strangers: Men's Speech to Young Children" (1975) explored differences between mothers' and fathers' spoken interaction with their children, primarily using data produced by two female and two male daycare teachers at a large university, and by three mothers and three fathers, mostly during family dinners.
Among other conclusions, this study found that:
*mothers used less complex constructions in speaking to their children than did fathers;
*mothers generated lengthier and more complex constructions in speaking to their eldest child than to their younger children;
*fathers issued significantly more commands than did mothers, along with more threats and more teasing in the way of namecalling; and
*the fathers' language also reflected traditional gender roles in the families (such as in an example in which a father, playing a game with his son, directs the son to the mother when the need for a diaper change arises).
[Gleason, Jean Berko. (1975) "Fathers and other strangers: men's speech to young children". In Daniel P. Dato, ed., ''Developmental Psycholinguistics: Theory and Applications''. Washington, DC: Georgetown University Press.]
In contrast, both male and female daycare teachers used language that was similar both quantitatively and qualitatively, with both focusing on a dialogue based in the present and on the immediate needs of the children.
Differences included that the male teachers tended to address the children by name more often than did the female teachers and that the male teachers issued more
imperatives than did the female teachers.
Acquisition of routines in children
Gleason's research eventually extended into the study of children's acquisition of routinesthat is, standardized chunks of language (or language-plus-gesture) that the culture expects of everyone, such as greetings, farewells, and expressions of thanks. Gleason was one of the first to study the acquisition of politeness, examining English-speaking children's use of routines such as ''thank you'', ''please'', and ''I'm sorry''. Researchers in this area have since studied both verbal and non-verbal routinization, and the development of politeness routines in a variety of cultures and languages.
The Halloween routine
Gleason's 1976 paper with Weintraub, "The Acquisition of Routines in Child Language",
analyzed performance on the culturally standardized Halloween
trick-or-treat
Trick-or-treating is a traditional Halloween custom for children and adults in some countries. During the evening of Halloween, on October 31, people in Halloween costume, costumes travel from house to house, asking for treats with the phrase " ...
routine in 115 children aged two to sixteen years.
Alterations in ability and the function of parental contribution were analyzed concerning cognitive and social components.
They discovered that in the acquisition of routines
(in contrast to the acquisition of much of the rest of language) parents' major interest is for their children to achieve accurate performance, with little stress on children's understanding of what they are expected to say.
Gleason and Weintraub found that the parents rarely if ever explain to children the meaning of such routines as ''Bye-bye'' or ''Trick or treat''there was no concern with the child's thoughts or intentions as long as the routine was performed as expected at the appropriate times.
Thus, parents' role in the acquisition of routines is very different from their role in most of the rest of language development.
"Hi, Thanks, and Goodbye"
Gleason and Greif analyzed children's acquisition of three ubiquitous routines in "Hi, Thanks, and Goodbye: More Routine Information" (1980).
The subjects were eleven boys and eleven girls and their parents.
At the conclusion of a parent-child play period, an assistant entered the playroom bearing a present, in order to evoke routines from the children.
The study's purpose was to analyze how parents communicate these routines to their children; major questions proposed included whether or not some routines were more obligatory than others, and whether mothers and fathers provide different models of politeness behavior for their children. The results suggest that children's ''spontaneous'' construction of the three routines was low, with ''Thank you'' the rarest.
However, parents strongly encouraged their children to generate routines and, typically, the children complied.
In addition, parents were more likely to prompt the ''Thank you'' routine than the ''Hi'' and ''Goodbye'' routines.
Parents practiced the routines themselves, though mothers were more likely than fathers to speak ''Thank you'' and ''Goodbye'' to the assistant.
Apologies
Gleason and Ely made an in-depth study of apologies in children's dialogue in their paper, "I'm sorry I said that: apologies in young children's discourse" (2006),
which analyzed apology term usage (in parent–child dialogue) of five boys and four girls, aged one to six years.
Their research suggested that apologies appear later in children than do other politeness routines, and that as the children grew older they developed a progressively refined expertise with this routine, gradually requiring fewer direct prompts and producing more elaborate apologies instead of just saying "I'm sorry".
They also found that parents and other adults play an important role in fostering growth of apologetic abilities through the setting of examples, by encouraging the children to apologize, and by speaking specifically and purposefully to them about apologies.
Attention to language in family discourse
With Ely, MacGibbon, and Zaretsky, Gleason also explored the discourse of middle-class parents and their children at the dinner table in, "Attention to Language: Lessons Learned at the Dinner Table" (2001),
finding that the everyday language of these parents involves a remarkable portion of attention to language.
The dinner-table conversation of twentytwo middle-class families, each with a child between two years and five and onehalf years old, were recorded,
then analyzed for the existence and activity of languagecentered terms, including words like ''ask'', ''tell'', ''say'', and ''speak''.
Mothers spoke more about language than did fathers, and fathers spoke more about it than did children:
roughly eleven percent of mothers' sentences contained one or more languagecentered terms, and the corresponding proportions for fathers and children were seven percent and four percent.
Uses that were metalinguistic (for example, accounting for and remarking on speech) exceeded uses that were pragmatic (for example, managing how and when speech appears).
The more that mothers used language-centered terms, the more the children did as wellbut this was not true for fathers.
The results imply that in routine family conversations, parents supply children with considerable information on the way language is used to communicate information.
Foreign-language studies
Gleason has carried out significant research involving the learning and maintenance of second languages by
sequential bilinguals. She has studied the acquisition of a second language while retaining the first (additive bilingualism),
examining discourse behaviors of parents who follow the one person-one language principle by using different languages with their child.
She has also studied language attrition, the loss of a known language through lack of use,
and suggests that the order in which a language is learned is less important in predicting its retention than the thoroughness with which it is learned.
Psychophysiological responses to taboo words
An unusual study carried out with Harris and Aycicegi, "
Taboo words and reprimands elicit greater autonomic reactivity in a first language than in a second language" (2003), investigated the involuntary
psychophysiological
Psychophysiology (from Greek , ''psȳkhē'', "breath, life, soul"; , ''physis'', "nature, origin"; and , ''-logia'') is the branch of psychology that is concerned with the physiological bases of psychological processes. While psychophysiology w ...
reactions of bilingual speakers to taboo words.
Thirtytwo TurkishEnglish bilinguals judged the pleasantness of an array of words and phrases in
Turkish (their first language), and in English (their second), while their
skin conductance
Electrodermal activity (EDA) is the property of the human body that causes continuous variation in the electrical characteristics of the skin. Historically, EDA has also been known as skin conductance, galvanic skin response (GSR), electroderm ...
was monitored via fingertip electrodes.
Participants manifested greater
autonomic arousal in response to taboo words and childhood reprimands in their first language than to those in their second language, confirming the commonplace claim that speakers of two languages are less uncomfortable speaking taboo words and phrases in their second language than in their native language.
Maintenance of first and second languages
In "Maintaining Foreign Language Skills", which discusses "the personal, cultural, and instructional factors involved with keeping up foreign language skills" (1988), Gleason and Pan consider both humans' remarkable capacity for language acquisition and their ability to lose it.
In addition to brain damage, strokes, trauma and other physical causes of language loss, individuals may lose language skills due to the absence of a linguistically supportive social environment in which to maintain such skills, such as when a speaker of a given language relocates to a place where that language is not spoken. Culture also factors in. More often than not, individuals speaking two or more languages come into contact with one another, for reasons ranging from emigration and interrelationships to alterations in political borders. The result of such contact is typically that the community of speakers undergoes a progressive shift in usage from one language to the other.
Aphasia
Gleason has also done significant research on
aphasia
Aphasia, also known as dysphasia, is an impairment in a person's ability to comprehend or formulate language because of dysfunction in specific brain regions. The major causes are stroke and head trauma; prevalence is hard to determine, but aph ...
,
a condition (usually due to
brain injury
Brain injury (BI) is the destruction or degeneration of brain cells. Brain injuries occur due to a wide range of internal and external factors. In general, brain damage refers to significant, undiscriminating trauma-induced damage.
A common ...
) in which a person's ability to understand and/or to produce language, including their ability to find the words they need and their use of basic morphology and syntax, is impaired in a variety of ways.
In "Some Linguistic Structures in the Speech of a Broca's Aphasic" (1972) Gleason, Goodglass, Bernholtz, and Hyde discuss an experiment carried out with a man who, after a
stroke
Stroke is a medical condition in which poor cerebral circulation, blood flow to a part of the brain causes cell death. There are two main types of stroke: brain ischemia, ischemic, due to lack of blood flow, and intracranial hemorrhage, hemor ...
, had been left with
Broca's aphasia/
agrammatism
Agrammatism is a characteristic of non-fluent aphasia. Individuals with agrammatism present with speech that is characterized by containing mainly content words, with a lack of function words. For example, when asked to describe a picture of ch ...
,
a specific form of aphasia typically impairing the production of morphology and syntax more than it impairs comprehension.
This experiment employed the Story Completion Test (often used to probe a subject's capacity for producing various common grammatical forms)
as well as free conversation and repetition to elicit speech from the subject;
this speech was then analyzed to evaluate how well he used inflectional morphology
(e.g. plural and past tense word endings) and basic syntax (the formation of, for example, simple
declarative,
imperative, and
interrogative
An interrogative clause is a clause whose form is typically associated with question-like meanings. For instance, the English sentence (linguistics), sentence "Is Hannah sick?" has interrogative syntax which distinguishes it from its Declarative ...
sentences).
To do this the investigator, in a few sentences, began a simple story about a pictured situation, then asked the subject to conclude the narrative.
The stories were so designed that a nonlanguageimpaired person's response would typically employ particular structures, for example, the plural of a noun, the past tense of a verb, or a simple but complete yesno question (e.g. "Did you take my shoes?").
Gleason, Goodglass, Bernholtz, and Hyde concluded that the transition from verb to object was easier for this subject than was the transition from subject to verb and that
auxiliary verb
An auxiliary verb ( abbreviated ) is a verb that adds functional or grammatical meaning to the clause in which it occurs, so as to express tense, aspect, modality, voice, emphasis, etc. Auxiliary verbs usually accompany an infinitive verb or ...
s and verb
inflection
In linguistic Morphology (linguistics), morphology, inflection (less commonly, inflexion) is a process of word formation in which a word is modified to express different grammatical category, grammatical categories such as grammatical tense, ...
s were the parts of speech most likely to be omitted by the subject. There was considerable variation among consecutive repeat trials of the same test item, although responses on successive attempts usually came closer to those a normal speaker would have produced. The study concluded that the subject's speech was not the product of a stable abnormal grammar, and could not be accounted for by assuming that he was simply omitting words to minimize his effort in producing themquestions
of significant theoretical controversy at the time.
Selected publications
Papers
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JSLHR Editor's Award*
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Book chapters
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* Reprinted as
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Textbooks
* Latest edition:
* Latest edition:
Notes
References
External links
Curriculum vitae
*
Departmental page*Nova/PBS
The Secret Life of Scientists and EngineersJean Berko GleasonPsycholinguist/Speed DemonWorld Science FestivalSpotlight: The Dao of ZibGleason discusses her education, career, and the Wug Test
On BeingJean Berko GleasonUnfolding Language, Unfolding Life!-- links need improved cite fmt-->
Brief video of Gleason administering a Wug test. With Stephen Fry.
{{DEFAULTSORT:Gleason, Jean Berko
American women linguists
American women psychologists
American developmental psychologists
Developmental psycholinguists
Phonologists from the United States
Boston University faculty
Fellows of the American Association for the Advancement of Science
Radcliffe College alumni
1931 births
Living people
Cleveland Heights High School alumni
American women academics
21st-century American women
20th-century American psychologists
21st-century American psychologists