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1.
Cult Med Psychiatry ; 46(1): 31-58, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-34216345

RESUMEN

In recent years, claims that developmental brain science should inform pedagogical approaches have begun to influence educational policies. This article investigates the promise, pitfalls, processes, and implications of these claims. We explore how research on neuroplasticity has led to enormous interest in harnessing mechanistic models of development for applications in the classroom. Synthesizing analysis from the scientific literature on "neuroeducation" and interviews with key actors in the field, we analyze how neural and cognitive processes are mapped onto pedagogical constructs, and how psychological and social-structural factors are (or are not) integrated into explanations. First, we describe the historical trajectory of educational neuroscience and identify how tensions between antagonist groups struggling for authority over brain-based educational claims shaped the field. Second, we focus on the pervasive use of the concept of "neuroplasticity" in the literature. We argue that it is used as a rhetorical device to create hope and empower children, teachers, and parents through educational exercises that promote neurobiological reflexivity. Third, we turn to the notion of "self-regulation" in the neuroeducational programs. We argue that the rationale of these programs emphasizes the young person's responsibility in navigating their social worlds through the imperative to enhance their executive functions while failing to adequately account for the role of the social environment in the development of self-regulation.


Asunto(s)
Encéfalo , Neurociencias , Adolescente , Encéfalo/fisiología , Niño , Humanos , Neurociencias/educación , Política , Conducta Social
2.
Front Sociol ; 6: 653160, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33928142

RESUMEN

The fields of epigenetics and neuroscience have come to occupy a significant place in individual and public life in biomedicalized societies. Social scientists have argued that the primacy and popularization of the "neuro" has begun to shape how patients and other lay people experience themselves and their lifeworlds in increasingly neurological and genetic terms. Pregnant women and new mothers have become an important new target for cutting edge neuroscientific and epigenetic research, with the Internet constituting a highly active space for engagement with knowledge translations. In this paper, we analyze the reception by women in North America of translations of nascent epigenetic and neuroscientific research. We conducted three focus groups with pregnant women and new mothers. The study was informed by a prior scoping investigation of online content. Our focus group findings record how engagement with translations of epigenetic and neuroscientific research impact women's perinatal experience, wellbeing, and self-construal. Three themes emerged in our analysis: (1) A kind of brain; (2) The looping effects of biomedical narratives; (3) Imprints of past experience and the management of the future. This data reveals how mothers engage with the neurobiological style-of-thought increasingly characteristic of public health and popular science messaging around pregnancy and motherhood. Through the molecularization of pregnancy and child development, a typical passage of life becomes saturated with "susceptibility," "risk," and the imperative to preemptively make "healthy' choices." This, in turn, redefines and shapes the experience of what it is to be a "good," "healthy," or "responsible" mother/to-be.

4.
Hum Brain Mapp ; 41(18): 5097-5113, 2020 12 15.
Artículo en Inglés | MEDLINE | ID: mdl-33058416

RESUMEN

Studies of socioeconomic disparities have largely focused on correlating brain measures with either composite measure of socioeconomic status (SES), or its components-family income or parental education, giving little attention to the component of parental occupation. Emerging evidence suggests that parental occupation may be an important and neglected indicator of childhood and adolescent SES compared to absolute measures of material resources or academic attainment because, while related, it may more precisely capture position in social hierarchy and related health outcomes. On the other hand, although cortical thickness and surface area are brain measures with distinct genetic and developmental origins, large-scale neuroimaging studies investigating regional differences in interaction of the composite measure of SES or its components with cortical thickness and surface area are missing. We set out to fill this gap, focusing specifically on the role of parental occupation on cortical thickness and surface area by analyzing magnetic resonance imaging scans from 704 healthy individuals (age = 3-21 years). We observed spatially distributed patterns of (parental occupation × age2 ) interaction with cortical thickness (localized at the left caudal middle frontal, the left inferior parietal and the right superior parietal) and surface area (localized at the left orbitofrontal cortex), indicating independent sources of variability. Further, with decreased cortical thickness, children from families with lower parental occupation exhibited lower self-esteem. Our findings demonstrate distinct influence of parental occupation on cortical thickness and surface area in children and adolescents, potentially reflecting different neurobiological mechanisms by which parental occupation may impact brain development.


Asunto(s)
Corteza Cerebral/anatomía & histología , Desarrollo Humano/fisiología , Autoimagen , Factores Socioeconómicos , Adolescente , Adulto , Factores de Edad , Corteza Cerebral/diagnóstico por imagen , Niño , Preescolar , Escolaridad , Femenino , Humanos , Renta , Imagen por Resonancia Magnética , Masculino , Ocupaciones , Padres , Clase Social , Adulto Joven
5.
J Neurosci ; 40(41): 7780-7781, 2020 10 07.
Artículo en Inglés | MEDLINE | ID: mdl-32938722

RESUMEN

Professional neuroscience organizations have recently pledged their commitments to diversity, equity, and inclusion in examining institutional discrimination; to raise questions about how to train underrepresented scientists; and to recruit underrepresented subjects for a more equitable scientific enterprise in the 21st century. Studies have illuminated racial disparities in funding, likely because of implicit bias in the review process and differential access to resources. We propose that one concrete way to monitor and redress these disparities is to collect and publicize data on grantees by gender, race, ethnicity, and location from neuroscience funding agencies. Beyond remedying historical disadvantages, disseminating funding more equitably across recipients would be an empirical solution that can improve the very quality of neuroscience.


Asunto(s)
Neurociencias/tendencias , Apoyo a la Investigación como Asunto/tendencias , Diversidad Cultural , Demografía , Etnicidad , Agencias Gubernamentales , Humanos , Apoyo a la Investigación como Asunto/estadística & datos numéricos
6.
AMA J Ethics ; 18(12): 1199-1206, 2016 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-28009246

RESUMEN

Technological developments in neuroscience over the last 20 years have generated excitement about the potential of neuroscientific insights for the understanding of and intervention in children's and adolescents' behavior. This article introduces some ways in which new results from developmental cognitive neuroscience have been appropriated in the context of adolescent mental health. We also consider social and interpersonal factors that drive the use of neurobiological markers of mental disorders in pediatric psychiatry. Finally, we outline the current ambitions for using neurobiological biomarkers in adolescent mental health care and discuss some ethical challenges arising from the methodological, political, cultural, and social contexts of their application.


Asunto(s)
Conducta del Adolescente , Salud del Adolescente , Encéfalo , Atención a la Salud/ética , Trastornos Mentales/terapia , Psiquiatría/ética , Política Pública , Adolescente , Desarrollo del Adolescente , Biomarcadores , Neurociencia Cognitiva , Ética Clínica , Humanos , Medicalización , Salud Mental , Riesgo
7.
Soc Sci Med ; 143: 311-9, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25779773

RESUMEN

Drawing from ethnographic research among clinicians working with adolescents at a hospital psychiatric emergency department and outpatient clinic, and with interviews with adolescent psychiatric patients and their parents, we examine how psychiatric medicines function as socializing agents. Although psychiatric medications are thought to exert their main effects through direct biological action on neural circuitry, in fact, their use mobilizes specific kinds of moral discourse and social positioning that may have profound effects on sense of self, personhood, and psychological development. Specifically, our data reveal how clinical discourse around medications aims to enlist adolescents in becoming responsible, emotionally intelligent selves through learning to manage their medications. Among doctors, adolescents and their families, talk about psychiatric medications intertwines narratives of 'growing up' and 'getting well'. Our analysis of case studies from the clinic thus demonstrates that while psychiatric medications are explicitly designed to influence behavior by acting directly on the brain, they also act to structure adolescents' selves and social worlds through indirect, rather than direct causal pathways to the brain.


Asunto(s)
Emociones , Trastornos Mentales/tratamiento farmacológico , Psicología del Adolescente , Psicotrópicos/uso terapéutico , Socialización , Adolescente , Antropología Cultural , Femenino , Humanos , Padres
8.
Front Hum Neurosci ; 8: 239, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24904347

RESUMEN

The BRAIN Initiative aims to break new ground in the scale and speed of data collection in neuroscience, requiring tools to handle data in the magnitude of yottabytes (10(24)). The scale, investment and organization of it are being compared to the Human Genome Project (HGP), which has exemplified "big science" for biology. In line with the trend towards Big Data in genomic research, the promise of the BRAIN Initiative, as well as the European Human Brain Project, rests on the possibility to amass vast quantities of data to model the complex interactions between the brain and behavior and inform the diagnosis and prevention of neurological disorders and psychiatric disease. Advocates of this "data driven" paradigm in neuroscience argue that harnessing the large quantities of data generated across laboratories worldwide has numerous methodological, ethical and economic advantages, but it requires the neuroscience community to adopt a culture of data sharing and open access to benefit from them. In this article, we examine the rationale for data sharing among advocates and briefly exemplify these in terms of new "open neuroscience" projects. Then, drawing on the frequently invoked model of data sharing in genomics, we go on to demonstrate the complexities of data sharing, shedding light on the sociological and ethical challenges within the realms of institutions, researchers and participants, namely dilemmas around public/private interests in data, (lack of) motivation to share in the academic community, and potential loss of participant anonymity. Our paper serves to highlight some foreseeable tensions around data sharing relevant to the emergent "open neuroscience" movement.

9.
Transcult Psychiatry ; 50(2): 192-215, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23599391

RESUMEN

The use and misuse of digital technologies among adolescents has been the focus of fiery debates among parents, educators, policy-makers and in the media. Recently, these debates have become shaped by emerging data from cognitive neuroscience on the development of the adolescent brain and cognition. "Neuroplasticity" has functioned as a powerful metaphor in arguments both for and against the pervasiveness of digital media cultures that increasingly characterize teenage life. In this paper, we propose that the debates concerning adolescents are the meeting point of two major social anxieties both of which are characterized by the threat of "abnormal" (social) behaviour: existing moral panics about adolescent behaviour in general and the growing alarm about intense, addictive, and widespread media consumption in modern societies. Neuroscience supports these fears but the same kinds of evidence are used to challenge these fears and reframe them in positive terms. Here, we analyze discourses about digital media, the Internet, and the adolescent brain in the scientific and lay literature. We argue that while the evidential basis is thin and ambiguous, it has immense social influence. We conclude by suggesting how we might move beyond the poles of neuro-alarmism and neuro-enthusiasm. By analyzing the neurological adolescent in the digital age as a socially extended mind, firstly, in the sense that adolescent cognition is distributed across the brain, body, and digital media tools and secondly, by viewing adolescent cognition as enabled and transformed by the institution of neuroscience, we aim to displace the normative terms of current debates.


Asunto(s)
Conducta del Adolescente/fisiología , Desarrollo del Adolescente/fisiología , Encéfalo/fisiología , Internet , Plasticidad Neuronal/fisiología , Adolescente , Conducta del Adolescente/psicología , Humanos
10.
Soc Sci Med ; 74(4): 565-73, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22257745

RESUMEN

The adolescent brain has become a flourishing project for cognitive neuroscience. In the mid 1990s, MRI studies mapped out extended neuro-development in several cortical regions beyond childhood, and during adolescence. In the last ten years, numerous functional MRI studies have suggested that functions associated with these brain regions, such as cognitive control and social cognition undergo a period of development. These changes have been anecdotally and clinically used to account for behavioural changes during adolescence. The interpretation of these data that the "teen brain" is different has gained increasing visibility outside the neuroscience community, among policy makers and in the media, resonating strongly with current cultural conceptions of teenagers in Western societies. In the last two years, a new impetus has been placed on public engagement activities in science and in the popular science genre of the media that specifically attempts to educate children and teenagers about emerging models of the developing brain. In this article, we draw on data from an adolescent focus group and a questionnaire completed by 85 teenage students at a UK school, to show how teens may hold ambivalent and sometimes resistant views of cognitive neuroscience's teen brain model in terms of their own self-understandings. Our findings indicate that new "neuro"-identity formations are more fractured, resisted and incomplete than some of the current social science literature on neuro-subjectivities seem to suggest and that the effects of public policy and popular education initiatives in this domain will be more uneven and complex than currently imagined.


Asunto(s)
Conducta del Adolescente , Desarrollo del Adolescente , Encéfalo/fisiología , Adolescente , Encéfalo/crecimiento & desarrollo , Femenino , Grupos Focales , Humanos , Neurociencias , Estereotipo , Encuestas y Cuestionarios
11.
Soc Cogn Affect Neurosci ; 5(2-3): 159-67, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-19959484

RESUMEN

Cultural neuroscience is set to flourish in the next few years. As the field develops, it is necessary to reflect on what is meant by 'culture' and how this can be translated for the laboratory context. This article uses the example of the adolescent brain to discuss three aspects of culture that may help us to shape and reframe questions, interpretations and applications in cultural neuroscience: cultural contingencies of categories, cultural differences in experience and cultural context of neuroscience research. The last few years have seen a sudden increase in the study of adolescence as a period of both structural and functional plasticity, with new brain-based explanations of teenage behaviour being taken up in education, policy and medicine. However, the concept of adolescence, as an object of behavioural science, took shape relatively recently, not much more than a hundred years ago and was shaped by a number of cultural and historical factors. Moreover, research in anthropology and cross-cultural psychology has shown that the experience of adolescence, as a period of the lifespan, is variable and contingent upon culture. The emerging field of cultural neuroscience has begun to tackle the question of cultural differences in social cognitive processing in adults. In this article, I explore what a cultural neuroscience can mean in the case of adolescence. I consider how to integrate perspectives from social neuroscience and anthropology to conceptualize, and to empirically study, adolescence as a culturally variable phenomenon, which, itself, has been culturally constructed.


Asunto(s)
Conducta del Adolescente , Antropología Cultural , Encéfalo/fisiología , Neurociencias , Adolescente , Animales , Comparación Transcultural , Humanos , Neuropsicología
12.
Prog Brain Res ; 178: 263-83, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19874976

RESUMEN

There is a long tradition that seeks to understand the impact of culture on the causes, form, treatment, and outcome of psychiatric disorders. An early, colonialist literature attributed cultural characteristics and variations in psychopathology and behavior to deficiencies in the brains of colonized peoples. Contemporary research in social and cultural neuroscience holds the promise of moving beyond these invidious comparisons to a more sophisticated understanding of cultural variations in brain function relevant to psychiatry. To achieve this, however, we need better models of the nature of psychopathology and of culture itself. Culture is not simply a set of traits or characteristics shared by people with a common geographic, historical, or ethnic background. Current anthropology understands culture as fluid, flexible systems of discourse, institutions, and practices, which individuals actively use for self-fashioning and social positioning. Globalization introduces new cultural dynamics and demands that we rethink culture in relation to a wider domain of evolving identities, knowledge, and practice. Psychopathology is not reducible to brain dysfunction in either its causes, mechanisms, or expression. In addition to neuropsychiatric disorders, the problems that people bring to psychiatrists may result from disorders in cognition, the personal and social meanings of experience, and the dynamics of interpersonal interactions or social systems and institutions. The shifting meanings of culture and psychopathology have implications for efforts to apply cultural neuroscience to psychiatry. We consider how cultural neuroscience can refine use of culture and its role in psychopathology using the example of adolescent aggression as a symptom of conduct disorder.


Asunto(s)
Antropología Cultural/tendencias , Neuropsicología/tendencias , Psiquiatría/tendencias , Psicopatología/tendencias , Antropología Cultural/métodos , Trastorno de Personalidad Antisocial/fisiopatología , Trastorno de Personalidad Antisocial/psicología , Encéfalo/fisiopatología , Cultura , Humanos , Neuropsicología/métodos , Psiquiatría/métodos , Psicopatología/métodos , Conducta Social , Trastorno de la Conducta Social/fisiopatología , Trastorno de la Conducta Social/psicología
13.
Soc Cogn Affect Neurosci ; 2(2): 130-9, 2007 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-17710201

RESUMEN

In this fMRI study, we investigated the development during adolescence of the neural network underlying thinking about intentions. A total of 19 adolescent participants (aged 12.1-18.1 years), and 11 adults (aged 22.4-37.8 years), were scanned using fMRI. A factorial design was employed with between-subjects factor age group and within-subjects factor causality (intentional or physical). In both adults and adolescents, answering questions about intentional causality vs physical causality activated the medial prefrontal cortex (PFC), superior temporal sulcus (STS), temporal poles and precuneus bordering with posterior cingulate cortex. In addition, there was a significant interaction between group and task in the medial PFC. During intentional relative to physical causality, adolescents activated part of the medial PFC more than did adults and adults activated part of the right STS more than did adolescents. These results suggest that the neural strategy for thinking about intentions changes between adolescence and adulthood. Although the same neural network is active, the relative roles of the different areas change, with activity moving from anterior (medial prefrontal) regions to posterior (temporal) regions with age.


Asunto(s)
Cognición/fisiología , Intención , Red Nerviosa/fisiología , Pensamiento , Adolescente , Adulto , Niño , Femenino , Giro del Cíngulo/fisiología , Humanos , Imagen por Resonancia Magnética , Masculino , Corteza Prefrontal/fisiología , Percepción Social , Adulto Joven
14.
Conscious Cogn ; 16(4): 886-96, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17196830

RESUMEN

The development of action representation during adolescence was investigated using a visually guided pointing motor task (VGPT) to test motor imagery. Forty adolescents (24 males; mean age 13.1 years) and 33 adults (15 males; mean age 27.5 years) were instructed to both execute and imagine hand movements from a starting point to a target of varying size. Reaction time (RT) was measured for both Execution (E) and Imagery (I) conditions. There is typically a close association between time taken to execute and image actions in adults because action execution and action simulation rely on overlapping neural circuitry. Further, representations of actions are governed by the same speed-accuracy trade-off as real actions, as expressed by Fitts' Law. In the current study, performance on the VGPT in both adolescents and adults conformed to Fitts' Law in E and I conditions. However, the strength of association between E and I significantly increased with age, reflecting a refinement in action representation between adolescence and adulthood.


Asunto(s)
Imaginación , Orientación , Reconocimiento Visual de Modelos , Psicología del Adolescente , Desempeño Psicomotor , Percepción del Tamaño , Adolescente , Adulto , Atención , Femenino , Humanos , Individualidad , Masculino , Tiempo de Reacción
15.
Neuropsychologia ; 45(2): 255-62, 2007 Jan 28.
Artículo en Inglés | MEDLINE | ID: mdl-16962147

RESUMEN

During adolescence the body undergoes many physical changes. These changes necessitate an updating of internal models of action. Here, we tested the hypothesis that internal models undergo refinement between adolescence and adulthood. We investigated the chronometry of executed and imagined hand actions, which relies on internal models, in 40 adolescents (24 males; mean age 13.1 years) and 33 adults (15 males; mean age 27.5 years). In two different motor imagery tasks, the time it took each participant to execute a hand movement was compared with the time it took them to imagine making that movement. For all participants, movement execution time significantly correlated with movement imagery time. However, there was a significant increase in the execution-imagery time correlation between adolescence and adulthood. Cognitive-motor efficiency per se did not change as indexed by both similar execution and imagery times on both tasks for the adolescents and adults. That it was only the correlation between imagined and executed actions that changed with age suggests that the developmental change was specific to generating accurate motor images and not a result of general cognitive improvement with age. The results support the notion that aspects of internal models are refined during adolescence. We suggest that this refinement may be facilitated by the development of parietal cortex during adolescence.


Asunto(s)
Adolescente/fisiología , Imaginación/fisiología , Movimiento/fisiología , Autoimagen , Adulto , Envejecimiento/fisiología , Cognición/fisiología , Femenino , Dedos/fisiología , Lateralidad Funcional/fisiología , Humanos , Masculino , Lóbulo Parietal/crecimiento & desarrollo , Lóbulo Parietal/fisiología , Desempeño Psicomotor/fisiología , Encuestas y Cuestionarios
16.
J Child Psychol Psychiatry ; 47(3-4): 296-312, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16492261

RESUMEN

Adolescence is a time of considerable development at the level of behaviour, cognition and the brain. This article reviews histological and brain imaging studies that have demonstrated specific changes in neural architecture during puberty and adolescence, outlining trajectories of grey and white matter development. The implications of brain development for executive functions and social cognition during puberty and adolescence are discussed. Changes at the level of the brain and cognition may map onto behaviours commonly associated with adolescence. Finally, possible applications for education and social policy are briefly considered.


Asunto(s)
Encéfalo/fisiología , Cognición/fisiología , Percepción Social , Adolescente , Encéfalo/anatomía & histología , Humanos , Imagen por Resonancia Magnética
18.
Soc Cogn Affect Neurosci ; 1(3): 165-74, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18985103

RESUMEN

Social relationships are particularly important during adolescence. In recent years, histological and MRI studies have shown that the brain is subject to considerable structural development during adolescence. Brain regions that are implicated in social cognition, including parts of prefrontal, parietal and superior temporal cortex, undergo the most pronounced and prolonged change. However, the development of social cognition during adolescence and its neural underpinnings remains poorly understood. Here, we begin by outlining how the brain changes between childhood and adulthood. We then describe findings that have emerged from behavioural and neuroimaging studies of the recognition of facial expression during adolescence. Finally, we present new data that demonstrate development of emotional perspective taking during adolescence. In this study, 112 participants, aged 8-36 years, performed a computerised task that involved taking an emotional perspective either from the participant's own point of view or from that of another person. The results showed that average difference in reaction time (RT) to answer questions in the first person perspective (1PP) and third person perspective (3PP) significantly decreased with age. The RT difference of adults tended to cluster close to the zero line (3PP = 1PP), while a greater proportion of pre-adolescents had higher difference values in both the positive (3PP > 1PP) and negative direction (1PP > 3PP) of the scale. The data suggest that the efficiency, and possibly strategy, of perspective taking develop in parallel with brain maturation and psychosocial development during adolescence.


Asunto(s)
Cognición , Desarrollo de la Personalidad , Percepción Social , Adolescente , Adulto , Encéfalo/fisiología , Niño , Femenino , Humanos , Inteligencia , Masculino , Plasticidad Neuronal/fisiología , Tiempo de Reacción , Adulto Joven
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