165 research outputs found
From Physical Aggression to Verbal Behavior: Language Evolution and Self-Domestication Feedback Loop
Toward the language oscillogenome
Language has been argued to arise, both ontogenetically and phylogenetically, from specific patterns of brain wiring. We argue that it can further be shown that core features of language processing emerge from particular phasal and cross-frequency coupling properties of neural oscillations; what has been referred to as the language 'oscillome.' It is expected that basic aspects of the language oscillome result from genetic guidance, what we will here call the language 'oscillogenome,' for which we will put forward a list of candidate genes. We have considered genes for altered brain rhythmicity in conditions involving language deficits: autism spectrum disorders, schizophrenia, specific language impairment and dyslexia. These selected genes map on to aspects of brain function, particularly on to neurotransmitter function. We stress that caution should be adopted in the construction of any oscillogenome, given the range of potential roles particular localized frequency bands have in cognition. Our aim is to propose a set of genome-to-language linking hypotheses that, given testing, would grant explanatory power to brain rhythms with respect to language processing and evolution.Economic and Social Research Council scholarship 1474910Ministerio de Economía y Competitividad (España) FFI2016-78034-C2-2-
The emergence of modern languages:has human self-domestication optimized language transmission?
Le juste milieu: Une approche de la biologie des systemes face aux troubles du developpement du langage
Current typologies of
developmental language disorders are
mostly based on symptomatic criteria.
Nonetheless, they often fail to
categorize and characterize patients
unambiguously, essentially because of
the widespread problems of
comorbidity and heterogeneity.
Likewise, they usually fail to
incorporate etiological factors in a
precise way. These shortcomings are
expected to impact negatively on
therapies and the recovery of patient’s
abilities. This paper advocates a
systems biology approach to
developmental language disorders,
aimed to disentangle how the myriad of
biological factors involved (at the
bottom) interact complexly to regulate
language development and processing
(at the surface). In particular, it
advocates a classification of disorders
based on intermediate-level
components, like brain oscillations.
This fresh approach to the
etiopathogenesis of developmental
language disorders, which is more
biologically motivated and more
theoretically grounded, should allow
identify robust endophenotypes of
these conditions, that can be used as
reliable hallmarks for an earlier and
more accurate diagnosis.Las tipologías de los
trastornos del lenguaje ligados al
desarrollo se basan
fundamentalmente en criterios
sintomatológicos. No obstante,
frecuentemente son incapaces de
categorizar adecuadamente a los
pacientes, fundamentalmente debido
a la heterogeneidad y la diversidad
típicas de los trastornos, y a la
comorbilidad que se advierte entre
ellos. Asimismo, dichas tipologías no
contemplan como debieran la
naturaleza de los factores etiológicos
que explican cada trastorno. Estas
circunstancias pueden condicionar
negativamente el tratamiento de los
afectados. En este artículo se
defiende una caracterización de estos
trastornos desde la óptica de la
biología de sistemas, que busca
discernir la manera en que los
factores biológicos implicados
interactúan de forma compleja para
explicar el desarrollo y el
procesamiento anómalos del
lenguaje. En concreto, se defenderá
una clasificación basada en
componentes biológicos intermedios,
en particular, las oscilaciones
cerebrales, que se espera que
constituyan además endofenotipos
más fiables, que permitan
diagnósticos más exactos y
tempranos.Les typologies actuelles des
troubles du langage développemental
sont principalement basées sur des
critères symptomatiques. Néanmoins, ils
ni catégorisent ni caractérisent les
patients sans ambiguïté, à cause des
problèmes généralisés de comorbidité et
d'hétérogénéité. Également, ils ne
parviennent généralement pas à intégrer
les facteurs étiologiques de manière
précise. Ces restrictions devraient avoir
un impact négatif sur les traitements du
patients. Cet article préconise une
approche dès la biologie des systèmes
pour traiter les troubles du
développement du langage, pour
comprendre mieux la manière dont la
myriade de facteurs biologiques
impliqués (les inférierurs) interagissent
de manière complexe pour réguler le
développement et le traitement anormal
du langage (les supérieurs). En
particulier, il préconise une
classification basée sur des composants
de niveau intermédiaire, tels que les
oscillations cérébrales. Cette nouvelle
approche devrait permettre d'identifier
des endophénotypes fiables de ces
affections, qui puissent être utilisés pour
un diagnostic plus précoce et plus
précis
Autism and Williams syndrome: Dissimilar socio-cognitive profiles with similar patterns of abnormal gene expression in the blood
Autism spectrum disorders and Williams syndrome exhibit quite opposite features in the social domain, but also
share some common underlying behavioral and cognitive deficits. It is not clear, however, which genes account for the
attested differences (and similarities) in the socio-cognitive domain. In this article, we adopted a comparative molecular
approach and looked for genes that might be differentially (or similarly) regulated in the blood of subjects with these two
conditions. We found a significant overlap between differentially expressed genes compared to neurotypical controls,
with most of them exhibiting a similar trend in both conditions, but with genes being more dysregulated in Williams
syndrome than in autism spectrum disorders. These genes are involved in aspects of brain development and function
(particularly dendritogenesis) and are expressed in brain areas (particularly the cerebellum, the thalamus, and the
striatum) of relevance for the autism spectrum disorder and the Williams syndrome etiopathogenesi
Stanisław Barańczak o la rebeldía perpleja
Considerado en sus inicios como un representante típico de la poesía política polaca, la obra de Stanisław Barańczak constituye, no obstante, un análisis particularmente lúcido de la realidad existencial del ser humano y de los límites impuestos al yo individual en su confrontación con la sociedad de la que forma parte y con la trascendencia a la que aspira. Nacida, ciertamente, de los avatares de la lucha política contra el régimen comunista, la poesía de Barańczak ha sabido evolucionar, sin embargo, hacia un horizonte más universal, acentuando para ello la vindicación de los derechos inalienables del ser humano y el valor irrenunciable de su libertad. La Poética de Barańczak se halla en consonancia con los presupuestos éticos que defiende a través de sus versos: con su estilo complejo, sus referencias cultistas y su original voluntad de experimentación formal (que incluye, en particular, un acentuado interés por la expresión musical como límite o coadyuvante de la expresión poética) su poesía constituye una plasmación siempre actual y siempre personal de las sempiternas cuestiones filosóficas que inquietan al hombre.Traditionally regarded as a political poet, Stanisław Barańczak‟s work actually represents a lucid depiction of human being‟s existential complexities, but also a coherent drawing of the limits imposed upon him by society and transcendence. Barańczak‟s poetry was born on occasion of political conflicts in Popular Poland during the 70‟s, but since then has nevertheless sought more universal horizons, by a coherent vindication of the inalienable value of human freedom and human rights. Barańczak‟s Poetics much more reflects his main ethic concerns: a complex style, a profusion of quotes and cultist references, and a patent interest in formal experimentation (particularly in music as a limit or coadjutant to poetic creation) accurately give expression to those everlasting philosophical questions which have always disturbed human beings
Biología y lenguaje : pasado, presente y futuro de una relación obligada
Diversas evidencias sugieren la plausibilidad (y la necesidad) de un análisis biológico del
lenguaje, incluyendo determinados resultados derivados del propio análisis de la estructura y el proceso
de adquisición de las lenguas. De ahí que buena parte de los modelos generados por la teoría lingüística
en las últimas décadas hayan tratado de buscar una legitimación en los datos proporcionados por la
Biología. Sin embargo, una compresión cabal de la naturaleza (necesariamente biológica) del lenguaje
y de su desarrollo ontogenético y filogenético sólo se conseguirá cuando se tengan en cuenta asimismo
los paradigmas y los marcos teóricos actualmente vigentes en el ámbito de la Biología.Multiple evidences suggest that a biological study of language could be both plausible and
necessary, some of them being the output of the structural analysis of languages and the way in which
they are acquired by the child. Hence, the current tendency of taking into account biological data to
validate (or falsify) the diverse models of language developed by theoretical linguistics. Nevertheless, if
we are actually intending to gain a real comprehension of the (biological) nature of language (but also
of the way in which it develops, both ontogenetically and phylogenetically), we will further need to
integrate as well fresh theoretical frames and paradigms which are at present at the core of biological
thinking
Figurative Language, Language Disorders, and Language(s) Evolution
Preparation of this work was supported by funds from the Spanish Ministry of Economy and Competitiveness (grants FFI2014-61888-EXP and FFI2016-78034-C2-2-P) and FEDER
La evolución del lenguaje : algunos parámetros relevantes y un escenario lingüístico molecularmente plausible (y viceversa)
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