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I am sitting on a veranda on a summer afternoon,

watching the trees gently sway in the sunlight.

A quiet joy beings to arise in me,

a rejoicing in the world that includes myself,

these swaying trees, this blue sky,

and everything else that unfolds beyond all that I am perceiving.

The world, completely and all at once, is fulfilled.

Research Blogging

While awareness of qualitative research of lived pain is slowly increasing in the field of pain, it is far from established and needs cultivating from within the field by pain researchers (Mitchell & MacDonald, 2009; Osborn & Rodham, 2010; Price & Barrell, 2012). Pain research has traditionally been dominated by quantitative research methods, which have their roots in physiology, physics, biology, and psychophysics, arising from mathematics, statistics, and psychometrics (Price et al. 2002; Price & Aydede, 2005; Price & Barrell, 2012). This trend continues unabated today, and perhaps explains why Osborn and Rodham (2010) found that many individual pain researchers have not yet accumulated a significant body of qualitative pain research. A body of qualitative pain research would enable researchers to develop their arguments in more depth concerning the nature and types of personal meanings apparent in pain experience, especially clinical pain experiences across the lifespan. The rationale for conducting qualitative pain research is likely not clear to many in the field of pain, and researchers are probably unaware of the potential richness of qualitative pain data to uniquely describe lived pain or the diverse tools available for analyzing qualitative data. In line with this, Osborn & Rodham (2010) found that many of the qualitative pain studies they reviewed used only one type of analysis (i.e., data analysis was not triangulated), description rather than interpretation prevailed in discussion of data meaning, and research methods were not thoroughly described.

A powerful reason to conduct more qualitative pain research is the common complaint from clinical pain patients that they feel they have never had an opportunity to fully explore their lived pain experiences with health care professionals, that no one has ever fully understood what is wrong with them and, most importantly, that no one appears to be listening (e.g., Melzack, 1990; Hoffmann & Tarzian, 2001; Hansson et al. 2011; McGee et al. 2011; Thacker & Moseley, 2012; De Ruddere et al. 2014). Clinical failure to sufficiently appreciate patient pain and its felt meanings can result in profound patient dissatisfaction, exacerbation of feelings of isolation and confusion, among other negative existential appreciations, and cause up-regulation of nociception (Butler et al. 2003). Despite this significant problem in the treatment and management of clinical pain, some pain researchers (e.g., Apkarian et al. 2011; Wortolowska, 2011) and government agencies (e.g., National Research Council of the National Academies, 2008; National Institutes of Health, 2011) have argued for replacing first-person patient experiential pain data with brain-imaging data.

Although qualitative research alone cannot solve these challenges, because of its exploratory nature, it can complement quantitative clinical pain research to describe lived pain and the psychosocial factors that improve or worsen the efficacy of pain interventions, as well as core intervention components that are associated with desired or undesired patient outcomes (Price et al. 2002; Price & Aydede, 2005; Price & Barrell, 2012; Thacker & Moseley, 2012).


Apkarian, A. V., Hashmi, J. A., & Baliki, M. N. (2011). Pain and the brain: specificity and plasticity of the brain in clinical chronic pain. Pain, 152(3 Suppl), S49–64.

De Ruddere, L., Goubert, L., Stevens, M. A. L., Deveugele, M., Craig, K. D., & Crombez, G. (2014). Health Care Professionals” Reactions to Patient Pain: Impact of Knowledge About Medical Evidence and Psychosocial Influences. The Journal of Pain, 15(3), 262–270.

Hoffmann, D. E., & Tarzian, A. J. (2001). The girl who cried pain: a bias against women in the treatment of pain. The Journal of Law, Medicine & Ethics, 28(s4), 13–27.

McGee, S. J., Kaylor, B. D., Emmott H., & Christopher, M. J. (2011). Defining chronic pain ethics. Pain Medicine, 12, 1376–1384.

Melzack, R. (1990). The tragedy of needless pain. Scientific American, 262(2), 27–33.

National Institutes of Health. (2011). Biomarkers for chronic pain using functional brain connectivity. Common Fund NIH Government.

National Research Council of the National Academies. Emerging cognitive neuroscience and related technologies. (2008). Washington, DC: National Academies Press.

Price, D. D., & Aydede, M. (2005). The experimental use of introspection in the scientific study of pain and its integration with third-person methodologies: The experiential-phenomenological approach. In M. Aydede (Ed.), Pain: New Essays on its Nature and the Methodology of its Study (pp. 243–273). Cambridge, Mass.: MIT Press.

Price, D. D., & Barrell, J. J. (2012). Inner Experiences and Neuroscience. Merging the two perspectives. Cambridge, Mass.: MIT Press.

Price, D. D., Barrell, J. J., & Rainville, P. (2002). Integrating experiential-phenomenological methods and neuroscience to study neural mechanisms of pain and consciousness.

Thacker, M. A., & Moseley, G. L. (2012). First-person neuroscience and the understanding of pain. The Medical Journal of Australia, 196(6), 410–411.

Wortolowska, K. (2011). How neuroimaging can help us to visualise and quantify pain? European Journal of Pain, 5, 323–327.

<span class=”Z3988″ title=”ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&;bpr3.tags=Health%2Cpain%2C+chronic+pain%2C+qualitative+research%2C+phenomenology%2C+philosophy%2C+psychology%2C+neuroscience%2C+pain+medicine”>Simon van Rysewyk (2014). Towards raising awareness of qualitative pain research <span style=”font-style: italic;”></span></span&gt;

The intrauterine view of gender identity and sexual orientation

The intrauterine theory of gender identity proposes that gender identity is encoded in brain during intrauterine development (e.g., Savic et al. 2011; Swab, 2007). The brain is thought to develop in the male ‘direction’ through a surge of testosterone on nerve cells, likely in the bed nucleus of the stria terminalis (BSTc) in the limbic system (Chung et al. 2002; Krujiver et al. 2000; Zhou et al. 1995), whereas in the female ‘direction’ this surge is absent. This view of gender identity has been adapted to explain transsexualism: since sexual differentiation of the brain occurs in the second half of pregnancy, and sexual differentiation of the sexual organs occurs in months 1-2 of pregnancy, transsexuality is possible. Thus, the relative masculinization of the brain at birth may not reflect the relative masculinization of the genitals (e.g., Bao & Swab, 2011; Savic et al. 2011; Veale et al. 2010).

fp4-5.jpg (836×591)

The intrauterine theory implies that transsexualism is entirely dependent on a specific and dedicated neuroanatomical brain ‘module’, the BTSc). At a time during the second half of pregnancy, the BSTc comes ‘on-line’, and sexual  – or transsexual  – identity is thereby formed in the individual.

The intrauterine theory as a maturational theory

As a maturational brain theory, the intrauterine theory assumes functional localization of gender identity as an attribute of a specific brain structure or region (i.e., the BSTc) and its patterns of functional connectivity, rather than its patterns of functional connectivity to other structures or regions, to the whole brain and its external environment (van Rysewyk, 2010). Developmentally, a maturational view assumes establishment of intraregional connections, rather than interregional connectivity. It follows that the intrauterine view implies that transsexualism involves a process of organizing intraregional interactions within the BSTc. The bed nucleus of the STc appears to be critically involved.

Extending the maturational aspect of the intrauterine view to gender development also means that we should observe changes in the response properties of the BSTc during pregnancy as regions within the BSTc interact with each other to establish their functional gender roles. Thus, the onset of transsexual identity during intrauterine development will be associated with reliable changes in several regions in the BSTc.












ST ‘off-line’

Gray691 (1)











ST ‘on-line’; onset of transsexual identity

The intrauterine theory and mind-brain identity theory

Philosophically, the intrauterine view is also highly compatible with mind-brain identity theory, a philosophy of mind and consciousness (van Rysewyk, 2013). Mind-brain identity theory claims that mental states are identical to brain states. This implies that a person’s indubitable sense of gender identity as manifested in real-time feelings, sensations, thoughts and reports made to others of being a woman or a man are numerically identical to specific brain states, possibly states of a single brain structure or region. Are the brain states in question states of one brain structure – the BSTc? It appears not, for Chung et al. (2002) found that significant sexual dimorphism in BSTc size and neuron number does not develop in humans until adulthood. However, most male-to-female (MTF) transsexuals self-report that their feelings of gender dysphoria began in early childhood (e.g., Lawrence, 2003).

Clearly, these important findings are not compatible with the maturation of one brain structure or region, but with inter-regional brain development, of which the BSTc may feature as merely one, but significant, contributor. Thus, following the onset of transsexual identity, there is a reorganization of interactions between different brain structures and regions. This reorganization process could change previously existing mappings between brain structures and regions and their functions. It follows that the same phenomenal sense of gender identity in a person (e.g., recurring feelings of gender dysphoria) could be supported by different neural substrates at different ages during development. This possibility doesn’t necessarily exclude a maturational theory of transsexual identity, since the BSTc may be stimulated to reorganize its intrauterine functional connectivity following appropriate stimulation during postnatal development.

Future experimental questions for the function of the BSTc in gender identity and sexual orientation

1. The extent of BSTc localization in gender identity: how diffuse or focal is BSTc activity that results from gender-identity based stimulation?

2. The extent of BSTc specialization in gender identity: How coarsely or finely-tuned is BSTc activity that results from gender-identity based stimulation?

The inter-regional interaction theory of gender identity assumes that as brain tissue becomes more specialized (i.e., finely-tuned), it will become activated by a narrow range of gender-based experiences. With increased specialization, less extensive areas of brain tissue (BSTc?) will identify with gender-based phenomenology.


Bao, A. M., & Swaab, D. F. (2011). Sexual differentiation of the human brain: relation to gender identity, sexual orientation and neuropsychiatric disorders.Frontiers in neuroendocrinology32(2), 214-226.

Chung, W. C., De Vries, G. J., & Swaab, D. F. (2002). Sexual differentiation of the bed nucleus of the stria terminalis in humans may extend into adulthood. Journal of Neuroscience, 22, 1027-1033.

Kruijver, F. P., Zhou, J. N., Pool, C. W., Hofman, M. A., Gooren, L. J., & Swaab, D. F. (2000). Male-to-female transsexuals have female neuron numbers in a limbic nucleus. Journal of Clinical Endocrinology and Metabolism, 85, 2034-2041.

Lawrence, A. A. (2003). Factors associated with satisfaction or regret following male-to-female sex reassignment surgery. Archives of Sexual Behavior, 32, 299-315.

Savic, I., Garcia-Falgueras, A., & Swaab, D. F. (2010). Sexual differentiation of the human brain in relation to gender identity and sexual orientation. Progress in Brain Research, 186, 41-65.

Swaab, D. F. (2007). Sexual differentiation of the brain and behavior. Best Practice & Research Clinical Endocrinology & Metabolism21(3), 431-444.

van Rysewyk, S. (2010). Towards the the developmental pathway of face perception abilities in the human brain. In: A. Freitas-Magalhães (Ed.), ‘Emotional Expression: The Brain and the Face’ (V. II, Second Series), University of Fernando Pessoa Press, Oporto: pp. 111-131.

van Rysewyk, S. (2013). Pain is Mechanism. PhD Dissertation, University of Tasmania.

Veale, J. F., Clarke, D. E., & Lomax, T. C. (2010). Biological and psychosocial correlates of adult gender-variant identities: a review. Personality and Individual Differences48(4), 357-366.

Zhou, J. N., Hofman, M. A., Gooren, L. J., & Swaab, D. F. (1995). A sex difference in the human brain and its relation to transsexuality. Nature, 378, 68-70.

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Simon van Rysewyk

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