Writing systems
The April 21, 1971 New York Times article by George Gent covering the opening of the Grolier Club exhibition, "The Maya Scribe and His World" with interview quotes by Yale anthropologist Michael D. Coe. The article focuses on the... more
The April 21, 1971 New York Times article by George Gent covering the opening of the Grolier Club exhibition, "The Maya Scribe and His World" with interview quotes by Yale anthropologist Michael D. Coe. The article focuses on the significant importance of the Grolier Codex and features the first published photographs of four of the Codex pages by a NYT photographer.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
A Powerpoint Presentation on the Armenian alphabet, its history and usage. The presentation is in Armenian, with references. It was created for Armenological Hiking Summer School (ՀԳԱԴ) held in Armenia, August 2014. Powerpoint... more
A Powerpoint Presentation on the Armenian alphabet, its history and usage. The presentation is in Armenian, with references. It was created for Armenological Hiking Summer School (ՀԳԱԴ) held in Armenia, August 2014.
Powerpoint ներկայացում՝ հայոց այբուբենի, նրա պատմության և կիրառության վերաբերյալ։ Հայերեն, հղումներով։ Ստեղծվել է Հայագիտական արշավային դասընթացի համար՝ Հայաստան, օգոստոս 2014 թ.։
Powerpoint ներկայացում՝ հայոց այբուբենի, նրա պատմության և կիրառության վերաբերյալ։ Հայերեն, հղումներով։ Ստեղծվել է Հայագիտական արշավային դասընթացի համար՝ Հայաստան, օգոստոս 2014 թ.։
Research Interests:
Research Interests:
Current models of writing do not sufficiently address the complex relationship between the 2 transcription skills: spelling and handwriting. For children with dyslexia and beginning writers, it is conceivable that spelling ability will... more
Current models of writing do not sufficiently address the complex relationship between the 2 transcription skills: spelling and handwriting. For children with dyslexia and beginning writers, it is conceivable that spelling ability will influence rate of handwriting production. Our aim in this study was to examine execution speed and temporal characteristics of handwriting when completing sentence-copying tasks that are free from composing demands and to determine the predictive value of spelling, pausing, and motor skill on handwriting production. Thirty-one children with dyslexia (Mage = 9 years 4 months) were compared with age-matched and spelling-ability matched children (Mage = 6 years 6 months). A digital writing tablet and Eye and Pen software were used to analyze handwriting. Children with dyslexia were able to execute handwriting at the same speed as the age-matched peers. However, they wrote less overall and paused more frequently while writing, especially within words. Combined spelling ability and within-word pausing accounted for over 76% of the variance in handwriting production of children with dyslexia, demonstrating that productivity relies on spelling capabilities. Motor skill did not significantly predict any additional variance in handwriting production. Reading ability predicted performance of the age-matched group, and pausing predicted performance for the spelling-ability group. The findings from the digital writing tablet highlight the interactive relationship between the transcription skills and how, if spelling is not fully automatized, it can constrain the rate of handwriting production. Practical implications are also addressed, emphasizing the need for more consideration to be given to what common handwriting tasks are assessing as a whole.
Research Interests:
Psychology, Cognitive Psychology, Developmental Psychology, Literacy, Education, and 30 moreTeacher Education, Educational Psychology, Educational Research, SpLD/dyslexia, Early Childhood Literacy, Reading, Writing, Special Educational Needs and Transitions, Spelling, Special Educational Needs, Handwriting (Psychology of Language), Dyslexia, Writing systems, Developmental dyslexia, Teaching and Learning Writing and Reading, Handwriting, Research Writing, Handwriting Examinations, Teaching Reading and Writing Skills, Dyslexia Testing, Interested in Writing Research Papers, Reading Education, Spelling Difficulties, Spelling Mistakes, Analysis of Spelling, Spelling Mistakes Analysis, Dyslexia and literacy, Dyslexia and Dysgraphia, Copying, and Reading Strategies and Cognitionedit
Children with Specific Language Impairment (SLI) are known to have difficulties with spelling but the factors that underpin these difficulties, are a matter of debate. The present study investigated the impact of oral language and... more
Children with Specific Language Impairment (SLI) are known to have difficulties with spelling but the factors that underpin these difficulties, are a matter of debate. The present study investigated the impact of oral language and literacy on the bound morpheme spelling abilities of children with SLI. Thirty-three children with SLI (9–10 years) and two control groups, one matched for chronological age (CA) and one for language and spelling age (LA) (aged 6–8 years) were given dictated spelling tasks of 24 words containing inflectional morphemes and 18 words containing derivational morphemes. There were no significant differences between the SLI group and their LA matches in accuracy or error patterns for inflectional morphemes. By contrast when spelling derivational morphemes the SLI group was less accurate and made proportionately more omissions and phonologically implausible errors than both control groups. Spelling accuracy was associated with phonological awareness and reading; reading performance significantly predicted the ability to spell both inflectional and derivational morphemes. The particular difficulties experienced by the children with SLI for derivational morphemes are considered in relation to reading and oral language.
Actes du colloque Collège de France Académie des Inscriptions et Belles-Lettres Paris 24-25 janvier 2008
édités par N. Beaux, B. Pottier et N. Grimal
AIBL-Soleb 2013
édités par N. Beaux, B. Pottier et N. Grimal
AIBL-Soleb 2013
Research Interests:
A diagram from "Los Codices Mayas" A Book Review by George E. Stuart; in ARCHAEOASTRONOMY, The Journal of the Center for Archaeoastronomy, ed. John B. Carlson, Volume IX, Numbers 1-4, Jan.-Dec. 1986, page 166. Stuart summaries the... more
A diagram from "Los Codices Mayas" A Book Review by George E. Stuart; in ARCHAEOASTRONOMY, The Journal of the Center for Archaeoastronomy, ed. John B. Carlson, Volume IX, Numbers 1-4, Jan.-Dec. 1986, page 166. Stuart summaries the publications of the four Maya Codices starting from 1750 with the Dresden Codex through the 1980's and the Grolier Codex. It is highly significant that the Mexican State of Chiapas and the Universidad Autonoma de Chiapas chose to include the Grolier Codex as an authentic ancient Maya book in 1985 in the production of "Los Codices Mayas" along with the Dresden, Paris, and Madrid codices. This study diagram is being posted as a personal tribute to my friend and colleague, the late George E. Stuart, Ph.D. (1935 - 2014) for his great generosity and many extraordinary contributions promoting world archaeology over several generations.
This entry has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
This entry has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
In this article, see pages 164, 166-168 for Stuart's discussion of the Grolier Codex. It is highly significant that the Mexican State of Chiapas and the Universidad Autonoma de Chiapas chose to include the Grolier Codex as an authentic... more
In this article, see pages 164, 166-168 for Stuart's discussion of the Grolier Codex. It is highly significant that the Mexican State of Chiapas and the Universidad Autonoma de Chiapas chose to include the Grolier Codex as an authentic ancient Maya book in 1985 and make a fine color facsimile available along with the Dresden, Paris, and Madrid codices for further research.
This review and essay of "Los Codices Mayas" is being posted as a personal tribute to my friend and colleague, the late George E. Stuart, Ph.D. (1935 - 2014) for his great generosity and many extraordinary contributions promoting world archaeology over several generations.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
This review and essay of "Los Codices Mayas" is being posted as a personal tribute to my friend and colleague, the late George E. Stuart, Ph.D. (1935 - 2014) for his great generosity and many extraordinary contributions promoting world archaeology over several generations.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
In this article was invited by the National Endowment for the Humanities for its "Humanities" magazine special issue on "Technology", John B. Carlson defines the development of the field of archaeoastronomy as the study of astronomy in... more
In this article was invited by the National Endowment for the Humanities for its "Humanities" magazine special issue on "Technology", John B. Carlson defines the development of the field of archaeoastronomy as the study of astronomy in culture through such fields as history, art, architecture, religion, and writing. Focusing on the Maya of ancient Mesoamerica, the author outlines the interdisciplinary approach used to understand the Venus cycle's impacted on ancient Maya society. Of particular note is the study of the Grolier Codex, one of four known ancient Maya books, which depicts different manifestations of Venus; the column of glyphs on the left of each panel records days in a 104-year Venus almanac. These plaster-coated bark-paper pages, carbon-dated to the 13th century, represent only half of the 20-page original.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
Khipus are knotted-cord devices once used in the Andes for communication and recording information. Although numbers can be read on many khipus, it is unknown how other forms of data may have been recorded on the strings. Scholars... more
Khipus are knotted-cord devices once used in the Andes for communication and recording information. Although numbers can be read on many khipus, it is unknown how other forms of data may have been recorded on the strings. Scholars currently debate whether elements of cord construction, such as the direction of ply, signified meaning on khipus and, if so, how. Testimony from an Aymara-speaking khipu maker, collected in 1895 by Max Uhle and recovered from Uhle's unpublished field notes, combined with the analysis of his actual khipu provides the first direct evidence that ply was a signifying element in khipus. Moreover, the evidence suggests that ply signified through a principle of markedness in which S ply corresponded to the unmarked (more valued) category while Z ply corresponded to the marked (less valued) category.
The July 1983 Astronomy Magazine news article covering the authentication of the Maya Grolier Codex by University of Maryland professor John B. Carlson, Ph.D., Director of the Center for Archaeoastronomy. Carlson's findings indicate that... more
The July 1983 Astronomy Magazine news article covering the authentication of the Maya Grolier Codex by University of Maryland professor John B. Carlson, Ph.D., Director of the Center for Archaeoastronomy. Carlson's findings indicate that no fabricator (at the time the Codex was found) could have known the existence of the Venus evening star figure Carlson discovered when he realized that Grolier Codex pages 10 and 11 were both parts of page "10". According to Carlson, the Grolier Codex provides historians insights into Mayan religious, practices, astronomy, astrology, and ritual warfare.
(Carlson presented his research findings both at the 44th International Congress of Americanists, Manchester, England in 1982 and the American Astronomical Society in Boston, January 1983 in the research manuscript "The Grolier Codex: A Preliminary Report on the Content and Authenticity of a Thirteenth-Century Maya Venus Almanac".)
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
(Carlson presented his research findings both at the 44th International Congress of Americanists, Manchester, England in 1982 and the American Astronomical Society in Boston, January 1983 in the research manuscript "The Grolier Codex: A Preliminary Report on the Content and Authenticity of a Thirteenth-Century Maya Venus Almanac".)
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
The May 1983 Science83 news article covering the authentication of the Maya Grolier Codex by University of Maryland professor John B. Carlson, Ph.D., Director of the Center for Archaeoastronomy. Carlson's findings indicate that no... more
The May 1983 Science83 news article covering the authentication of the Maya Grolier Codex by University of Maryland professor John B. Carlson, Ph.D., Director of the Center for Archaeoastronomy. Carlson's findings indicate that no fabricator (at the time the Codex was found) could have known the existence of the Venus evening star figure Carlson discovered when he realized that Grolier Codex pages 10 and 11 were both parts of page "10". The manuscript is of special importance as it is the only pre-Columbian Mayan manuscript that remains in Mexican hands.
(Carlson presented his research findings both at the 44th International Congress of Americanists, Manchester, England in 1982 and the American Astronomical Society in Boston, January 1983 in the research manuscript "The Grolier Codex: A Preliminary Report on the Content and Authenticity of a Thirteenth-Century Maya Venus Almanac".)
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
(Carlson presented his research findings both at the 44th International Congress of Americanists, Manchester, England in 1982 and the American Astronomical Society in Boston, January 1983 in the research manuscript "The Grolier Codex: A Preliminary Report on the Content and Authenticity of a Thirteenth-Century Maya Venus Almanac".)
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
A single page astronomical study guide of the ten Maya Grolier Codex pages. This guide labels pages 1-9 and Carlson's reconstruction of page 10/11 based on the author's discovery that Codex pages 10 and 11 are actually two parts of the... more
A single page astronomical study guide of the ten Maya Grolier Codex pages. This guide labels pages 1-9 and Carlson's reconstruction of page 10/11 based on the author's discovery that Codex pages 10 and 11 are actually two parts of the same "page 10". One of four known ancient Maya books, the Grolier Codex depicts different manifestations of the planet Venus; the column of glyphs on the left of each panel records days in a 104-year Venus almanac. These plaster-coated bark-paper pages, carbon-dated to the 13th century, represent only half of the 20-page original.
This guide has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
This guide has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
The original 1982 manuscript presented both at the 44th International Congress of Americanists, Manchester, England in 1982 and the American Astronomical Society in Boston, January 1983. This research article is the only scholarly study... more
The original 1982 manuscript presented both at the 44th International Congress of Americanists, Manchester, England in 1982 and the American Astronomical Society in Boston, January 1983. This research article is the only scholarly study that provides an independent proof that the Grolier Codex must be a genuine pre-Columbian codex – because it contains key iconographic and other data that could not have been known to a potential fabricator in the mid-1960s when the Codex was found. The author also demonstrates his discovery that the previously labeled pages 10 and 11 of the Codex are actually two parts of the same page "10".
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Grolier Codex.
One of four known ancient Maya books, the Grolier Codex depicts different manifestations of the planet Venus; the column of glyphs on the left of each panel records days in a 104-year Venus almanac. These plaster-coated bark-paper pages,... more
One of four known ancient Maya books, the Grolier Codex depicts different manifestations of the planet Venus; the column of glyphs on the left of each panel records days in a 104-year Venus almanac. These plaster-coated bark-paper pages, carbon-dated to the 13th century, represent only half of the 20-page original. This article is an excerpt of pages 98-99 from the March 1990 National Geographic Magazine article "America's Ancient Skywatchers" by John B. Carlson with a numbered photographic arrangement of the Grolier Codex depicting the author's discovery that Codex pages 10 and 11 are actually two parts of the same "page 10". Carlson clarifies the identities of Venus deities depicted in the Grolier Codex from a comparison of images from the Cacaxtla murals and links the images of the Grolier Codex with ancient Maya astronomically timed ritual warfare and sacrifice. (Grolier Codex photographs: Enrico Ferorelli; Mural photograph: Bob Sacha)
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
One of four known ancient Maya books, the Grolier Codex depicts different manifestations of Venus; the column of glyphs on the left of each panel records days in a 104-year Venus almanac. These plaster-coated bark-paper pages,... more
One of four known ancient Maya books, the Grolier Codex depicts different manifestations of Venus; the column of glyphs on the left of each panel records days in a 104-year Venus almanac. These plaster-coated bark-paper pages, carbon-dated to the 13th century, represent only half of the 20-page original. This article is an excerpt of pages 98-99 from the March 1990 National Geographic Magazine article "America's Ancient Skywatchers" by John B. Carlson with a numbered photographic arrangement of the Grolier Codex depicting the author's discovery that Codex pages 10 and 11 are actually two parts of the same "page 10". Carlson clarifies the identities of Venus deities depicted in the Grolier Codex from a comparison of images from the Cacaxtla murals and links the images of the Grolier Codex with ancient Maya astronomically timed ritual warfare and sacrifice. (Grolier Codex photographs: Enrico Ferorelli; Mural photograph: Bob Sacha)
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.
This article has been posted on Academia.edu as part of the Grolier Codex Project of the Center for Archaeoastronomy under the directorship of John B. Carlson, Ph.D. The Grolier Codex Project seeks to further advance the study of the Maya Grolier Codex.


