Rachel Brezis, Autism and Neuroanthropology

At the Encultured Brain session Rachel Brezis will give a talk on Autism and Religious Development: A Case for Neuroanthropology. Here is the abstract:

Autism is a neurodevelopmental disorder that disrupts the juncture between self and culture, affecting an individual’s abilities to interpret and perform in social contexts. As such, it provides an intriguing case for the examination of anthropological theories of acculturation and self-construction. Moreover, person-centered ethnographies of the cultural practices of persons with autism can shed light on the neuropsychological bases of the disorder.

The author’s ethnographic study of the religious development of persons with High-Functioning Autism in Israel demonstrates the ways in which such cultural-level research contradicts some theories of autism derived mostly from experimental research. Instead, ethnographic research corroborates emerging neuropsychological studies to point to an alternative paradigm of autism. Rather than focusing on the deficit in understanding others (Theory of Mind), which predicts shallow, impersonal views of the universe among persons with autism, these studies suggest that the primary deficit in autism lies in weak self-coherence and the related functions of episodic memory and executive planning. These deficits lead individuals to become overly reliant on received cultural scripts, which are then coarsely woven into their personal narratives. Such integrative, interdisciplinary research is beneficial not only to the respective fields of anthropology and neuropsychology, but ultimately enhances our understanding of autism, providing the individuals behind the label with greater insight into their condition and support in their struggle for inclusion.

A graduate of Hebrew University in Jerusalem, Rachel is now a PhD student in Comparative Human Development and Clinical Psychology at the University of Chicago. For her masters’ thesis in the Department of Comparative Human Development, she wrote on the religious understandings of children with autism as part of a larger project exploring the psychological bases of religious beliefs. At Chicago she has also helped run the Clinical Ethnography workshop.

Rachel is currently a visiting scholar at the Center for Culture, Brain and Development and CART Center for Autism Research and Treatment at UCLA, where she is training in clinical and research methods in autism. Within her broad focus on the intersection of mental health and culture, she plans to pursue the study of autism as a window onto the intricate process of acculturation.

If you want to get in touch with Rachel, her email is brezisrs at uchicago.edu

For more on autism, we have one relevant post about autism and understanding others, discussing the case of Amanda Baggs and her YouTube video.

Call for cultural neuroscience papers for SCAN

Daniel already posted a link to this announcement in his recent biography of Rebecca Seligman, but Prof. Joan Chiao of Northwestern University has asked if I could make sure that the announcement gets out. Prof. Chiao is editing a special edition of Social Cognitive and Affective Neuroscience (SCAN) on cultural neuroscience, and the call for papers can be found here. The announcement describes:

The aims of the Special Issue on Cultural Neuroscience are two-fold. The first aim is to highlight recent empirical advances using human neuroscience and population genotyping techniques to investigate how culture influences neurobiological processes underlying a wide range of human abilities, from perception and scene processing to memory, emotion and social cognition, as well as how genetic and neural processes give rise to culture. The second aim is to review the theoretical and methodological issues with integrating anthropology, cultural psychology, human neuroscience and population genotyping approaches to the study of cultural neuroscience. By providing examples of the different kinds of bidirectional interactions between cultural, neural and genetic processes across multiple time scales (e.g., phylogeny, ontogeny, situation), the collection of articles in this special issue will serve to highlight the promise and progress of cultural neuroscience research.

We’ll be watching for the special edition, but in the meantime, if you’re interested, Dr. Chiao’s work can be found in a number of places (her website at Northwestern U.) but the easiest way to get it is through the website of the Social and Cultural Neuroscience Lab. The list of papers is extensive, but I particularly liked:

Chiao, Joan Y. and Nalini Ambady. 2007. Cultural Neuroscience: Parsing Universality and Diversity across Levels of Analysis. In Handbook of Cultural Psychology. S. Kitayama and D. Cohen, eds. Pp. 237-254. New York: Guilford Press. (download the pdf here)

Chiao, Joan Y., Zhang Li and Tokiko Harada. 2008 (forthcoming). Cultural Neuroscience of Consciousness: From Visual Perception to Self-Awareness. Journal of Consciousness Studies 15(10-11). (download the pdf here)

If you’re out there sitting on the ‘next big thing’ in cultural neuroscience, you should surf over to the SCAN special issue announcement and submit an abstract for review.

Wednesday Round Up #37

This week it’s sex, brains, anthro, and HIV/AIDS…

Top of the List

Jonah Lehrer, Poverty and the Brain
The Frontal Cortex on why inequality is bad for kids’ developing brains. Jonah discusses the new book Whatever It Takes by Paul Tough on the impact of poverty on children and the work of Geoffrey Canada to change things in Harlem. NPR also had a recent radio show on Canada and his Harlem Children’s Zone.
Jonah mentions the work of Martha Farah, and over at The Mouse Trap Sandy G provides a detailed consideration of Farah’s work in Neurological Correlates of Poverty. For even more on this topic, you can see the piece I wrote back in February entitled Poverty Poisons the Brain.

Olivier Morin, Community and Religion: Poor Predictors of the Bliss of Nations
The new Culture and Cognition blog keeps turning out some great stuff, this time on the Sunday fistfight in Jerusalem (complete with YouTube clip) and why latter-day Durkheimians like Jonathan Haidt aren’t all that.

Ty Burr, George Lucas Interview
The creator of Star Wars wants neuroanthropology!

Mohed Costandi, The Power of the Memory Molecule
Mo from Neurophilosophy writes this great piece in Scientific American’s Mind Matters

Sexuality

Nicole Yorio, Dating 101: The Truth About Why Men Cheat
Actual interviews and a compare-and-contrast sample – that gets us well beyond the usual tried-and-trite for this topic, even if ends up as a rather lite book

LL Wynn, What Is a Prostitute?
The anthropologist recounts her work in Egypt and the blurry lines of what counts as prostitution

Mind Hacks, The Curious Coupling of Science and Sex
Things that go bonk in the night…. A great new book

Continue reading “Wednesday Round Up #37”

Rebecca Seligman and the Cultural Neuroscience of Dissociation

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Rebecca Seligman is a psychological and medical anthropologist at Northwestern University. I have known Rebecca since we interviewed together at Emory for graduate school, and I am very pleased that she will be part of our Encultured Brain session. She once showed me some remarkable video of trance states among Candomble practitioners in Brazil; I still think about that footage today.

Rebecca will deliver a paper entitled, funny enough, “The Cultural Neuroscience of Dissociation.” Here’s the abstract:

Approaches to trance and possession in anthropology have tended to treat dissociative phenomena as primarily social and rhetorical practices, used to create social space or positioning for the performance and articulation of certain types of self-experiences, in particular cultural settings. Most anthropological studies of dissociation do not consider the relationships among such social processes and the emotional context and biological mechanisms of dissociative experiences. Within psychology and psychiatry, on the other hand, the experience of dissociation is assumed to be the direct product of an underlying neurological mechanism, which operates functionally. More specifically, current research in psychiatry is focused almost exclusively on establishing the link between dissociation and trauma, which is viewed as the trigger for a neurologically mediated dissociative response that functions as a defense mechanism. In this paper, I outline an approach to dissociative phenomena that integrates the neuropsychological notions of underlying mechanism with anthropological understandings of its social-discursive uses, demonstrating how an understanding of such mechanisms further illuminates the role of dissociation as a metaphor for certain types of self-related experience. This integrative model, informed by cultural neuroscience, can advance ethnographic studies of dissociative phenomena, including trance, possession and spiritual healing practices, by considering the central role of embodied processes in the phenomenology of dissociation.

Rebecca has already published on this research in a Culture, Medicine and Psychiatry article, “Dissociative Experience and Cultural Neuroscience: Narrative, Metaphor and Mechanism.”

Rebecca is also working on a paper with Ryan Brown (yes, he’s presenting too!) that will provide an anthropological take on the emerging field of cultural neuroscience in a special issue on that topic. The whole collection will hopefully appear later this year in Social Cognitive and Affective Neuroscience and is being edited by Joan Chiao. If you don’t want to wait that long, you might check out some previous posts on cultural neuroscience and the cultural brain here.

Rebecca was also part of an Ethos special issue on Building Biocultural Anthropology that I co-edited with Dan Hruschka back in 2005. Her article dealt with a similar topic, “Distress, Dissociation, and Embodied Experience: Reconsidering the Pathways to Mediumship and Mental Health.” Here is the abstract to that piece:

This article explores the biocultural bases of spirit possession mediumship in the Afro-Brazilian religion, Candomblé. After a brief review of the literature, the article moves beyond the biomedical and social-structural explanations that have dominated the theoretical landscape, by attempting to construct an etiology of mediumship that is traced through the interface of individual characteristics with the cultural belief system that forms their context. Data were collected from a total of 71 individuals over the course of a year-long field study in Salvador, Brazil. Analyses of social ethnography, life history and semistructured interviews along with results from psychological inventories, suggest that altered states of consciousness should not be considered the central and defining element of mediumship. An alternative model is proposed, in which the combination of social conditions and somatic susceptibilities causes certain individuals to identify with the mediumship role, and predisposes them to dissociate. However in the context of Candomblé, dissociation is not a pathological experience, but rather a therapeutic mechanism, learned through religious participation, that benefits individuals with a strong tendency to somatize.

If you want to contact Rebecca, please email her at r-seligman at northwestern.edu.

Round Encephalon

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Two new carnivals are just out. Grand Rounds, which gathers together the best medical blogging on a weekly basis, is now featured over at Musings of a Distractible Mind. Dr. Rob went above and beyond the call of duty with some funny lines and funnier photos! Among my favorites was an interview with James Orbinski, one of the leaders of Doctors without Borders who accepted the organization’s Nobel Peace Prize.

The latest Encephalon is also out at Highlight Health, rounding up mind and brain related blogging over the past fortnight. Highlight Health brought more than the usual suspects, which is great to see. One of my favorites this time is PodBlack’s piece on the joint sexualization and commercialization of childhood, focusing on the “Australian Girl.” Cognitive Daily’s examination of social exclusion and embodied emotions is also great. Plus lots more – multitasking, alcohol’s effects on the brain, music…

Testosterone and the seasonal regulation of sex-steroids

Testosterone has a crucial, if poorly understood, effect on male behaviour. It contributes to aggressivenes, libido, tumescence and sexual performance. Some scientists believe that the ratio of index finger length to ring finger length indicates how much testosterone we were exposed to in our mother’s womb. This has led some Palm reader’s to use clues from the ‘index finger:ring finger’ ratio to deduce gendered behavioural characteristics of a client… hmmmm???

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Concretely, what we do know is that Testosterone levels in early brain development, among many interesting things, can influence laterality, playing a role in handedness and the degree of linguistic lateralisation.  In males, testosterone has many direct effects on the anatomy and metabolism. Male humans are characterised by strong bones, increased muscle mass and a deeper voice (although the aging elderly male voice actually rises in pitch). Testosterone stimulates the growth of the genitals at puberty and is responsible for sperm production throughout adult life. Testosterone, arguably also plays a role in male intelligence–(or lack thereof)! 😛

 

Testosterone might put hairs on your chest, but it can also contribute to male-pattern baldness and prostate disease. It is a funny little hormone that influences cholesterol metabolism, the production of red blood cells by bone marrow, secondary sex characteristics, musculature, weight, accessory organs, mortality and injury rates. It is sometimes over-popularised for what are actually poorly understood processes, but in recent research, testosterone may be an important factor in understanding plasticity in the brain!!! In this exciting discovery, researchers are beginning to understand a pivotal role testosterone is playing in neurochemical plasticity!

So, the time has come, (as the Walrus said to the Carpenter), to draw your attention to this recent publication which looks at testosterone with respect to environmental influences (the light-dark/sleep-wake cycle) and it’s effects within the brain of a seasonal mammal, the Djungarian hamster (Phodopus sungorus)
                                             *SIGH* Ah, the beauty! A study of the brain in context!!!
                                                                                                                While many researchers are looking at how to regenerate neurons (which could potentially help stroke victims, paraplegics and alzheimers patients etc), a small group of researchers at the Laboratoire de Neurobiologie des Rythmes, Universite Louis Pasteur, are looking at the role of testosterone in neurochemical plasticity. It is a significant step towards understanding how to guide freshly generated neurons! Regenerating neurons is only part of the journey for accident-recovery patients, guiding these neurons might be tricky and Testosterone may be an important key!  Continue reading “Testosterone and the seasonal regulation of sex-steroids”