Tuesday, December 11, 2012

A Healthy Dose of Empathy


A Healthy Dose of Empathy

Gabriela Clayton
Loyola University Chicago
December 11, 2012


A recent Huffington Post article outlined the results of a 2012 research study done by Michigan State University of doctor-patient empathy and the effects that are correlated with the conditions of an empathic doctor as opposed to a non-empathic doctor. The results of the study conclude that patients who experienced empathic doctors also experienced a higher tolerance of pain. Though this study is a primary one in which the underlying mechanisms were not discovered, it opens doors to new research into the effects of doctor-patient relationships upon the patients’ health status and how it develops.  To begin to understand the effects of receiving empathy, one must first consider the importance of empathy evolutionarily, and its development from infancy into adulthood.  Jean Decety and Margarita Svetlova in their 2011 empathy empirical research, “Putting together phylogenetic and ontogenetic perspectives on empathy”, outlined many of the underlying roots of empathy evolutionarily, biochemically, and neurologically. They argue that it is essential to consider empathy within these frameworks because empathy is “grounded in multiple interacting systems and processes” (Decety et al).  By deciphering where empathy is learned, and how it is developed and displayed, would bring important insights into the responses of being shown empathy.
            Decety et al. root empathy in the attachment and interaction between a mother and her offspring. They cite that the evolutionary roots of empathy are an important component of mammalian evolutionary fitness. Decety et al. claim that the root of empathy is a mechanism for reproductive fitness and survival, so it basically evolved as a survival mechanism for the infant, the mother feels empathic toward the needs of the infant and thus responds accordingly. Empathic arousal and concern are common traits in most all mammalian species. Empathic concern evolved during the evolution of fetal gestation; internalizing reproduction gave rise to new behaviors including parenting, and attachment (MacLean, 1985). Once mammals began to parent their offspring they were given increased exposure to emotional signals of others and thus were able to form adaptations to deal with this new environmental stimulus (Decety et al.). The ability to perceive and respond to distress, fear, pain and hunger are important in ensuring the survival of the genetic legacy of mammalian species.  
            Empathy is first imparted upon the young from the mother. The mother is neurologically and biochemically programmed to attend to and take pleasure from attending to the needs of her young. Numan and Sheehan’s 1997 study about the neuroanatomy of mammalian maternal behavior indicates that during late stages of pregnancy rising estrogen and prolactin levels and waning progesterone levels act on mechanisms in the brain to either decrease fear and aversion, or increase attraction and approach behaviors in response to infant related stimuli. In addition, oxytocin (an amino acid peptide) is known to facilitate attachment behaviors by decreasing natural avoidance behavior (by decreasing fear and anxiety, and increasing tolerance to stressful stimuli) and thus facilitating approach behavior (Carter, 1998). Carter et al. in their 2008 study has also demonstrated that oxytocin facilitates maternal behavior in that the levels of oxytocin increase within the mother while she is near her infant, decrease when she is separated from her infant (in fact cortisol, the stress hormone, levels increases during separation) and oxytocin increases again once she is reunited with her infant. This is congruent with the research indicating that brain processes parental care is a rewarding experience.  The evidence for this comes from a 2005 study where it was observed that in fMRI scans of during the process of  mother rats feeding her pups the addiction and reward brain centers showed greater activation than when given the stimulus of cocaine (Ferris et al., 2005). So mothers are preprogrammed to attend to the needs of her young to increase evolutionary fitness, but what is more is that in attending to the needs of her young she receives greater reward and addiction than when given highly addictive and rewarding stimulants; thus the act of empathy is evolutionarily rewarding in more ways than one.
            From the beginning of life the infant observes the behavior of the mother and through this observation the infant begins to build schemas about the world and about behavior.  It has been demonstrated that infants as young as 8 months can display empathic responses to signs of distress (Roth-Hanania et al., 2011). Roth-Hanania et al. in their study conclude that “young infants’ understanding of the internal states of others also includes their ability to comprehend others’ emotional states – at least that of distress – and to respond to them with emotional attunement”. This may be due to the mother granting the infant the same emotional attunement when they display signs of distress. Empathic behavior in humans develops more in the second year of life when the child is better attune to awareness of the experiences and emotions of others and the regulatory abilities of their own emotions (Decety et al.) The empathy shown by the mother is passed along into the behavior of the child, whom is already predisposed to the ability of empathy through evolutionary progress, as the child gains cognitive awareness the empathic reasoning, understanding, and responses increases.
From an early age humans are exposed to empathic responses to their distressing needs, this may elicit a positive reaction to empathic responses during times of vulnerability during later years in life. Humans are predisposed evolutionarily to altruistically aid their kin, but also humans have the unique ability to act altruistically in the favor of non-kin (Decety et al.). This altruistic act in the favor of non-kin has proven to a degree to be necessary in the hospital environment. During the time of vulnerability where a patient’s health is degrading the patient may feel as helpless as they had as an infant or child, albeit unconsciously. The inability to maintain equilibrium with their health is positively correlated with high stress levels, which by nature is positively correlated with elevated levels of cortisol (Marmot et al., 2005). Empathy has shown to enhance oxytocin levels, which reduce the secretion of hormones like cortisol (Decety et al.). By reducing cortical levels and increasing oxytocin levels stress, fear, and anxiety is reduced. However, there is little to none research done on the effects of empathic responses have upon the person that they are aimed at, it could be hypothesized that is induces increased oxytocin levels. This can be inferred from the response of patients from the empathic actions of the doctors in the Michigan State University doctor-patient empathy study. In all, empathy displayed by the doctor may help to ease the pain of patients because all humans are evolutionarily exposed to empathy from the beginning of life and this exposure may predispose us to positive reactions later in life from experiencing empathic responses from others.


References

Decety, Jean, and Maragrita Svetlova. "Putting Together Phylogenetic and Ontogenetic
Perspectives on Empathy." Developmental Cognitive Neuroscience 2 (2011): 1-24. Print.

Carter, C.S., 1998. Neuroendocrine perspective on social attachment and love.
Psychoneuroendocrinology 23, 779–818.

Carter, C.S., Grippo, A.J., Pournajaļ¬-Nazarloo, H., Ruscio,M.G., Porges, S.W., 2008. Oxytocin,
vasopressin and sociality. Progress Brain Research 170, 331–336.

Chan, Amanda L. "Doctor Empathy Could Decrease Stress, Pain Sensitivity In Patients:
Study." Huffington Post. AOL Lifestyle, 4 Dec. 2012. Web.

MacLean, P.D., 1985. Brain evolution relating to family, play, and the separation call. Archives
of General Psychiatry 42, 405–417

Marmot, M. G., and Richard G. Wilkinson. Social Determinants of Health. Oxford: Oxford UP,
2006. Print.

Numan, M., Sheehan, T.P., 1997. Neuroanatomical circuit for mammalian maternal behavior.
Annals of the New York Academy of Sciences 807, 101–125

Ronit Roth-Hanania, Maayan Davidov, Carolyn Zahn-Waxler, Empathy development from 8 to
16 months: Early signs of concern for others, Infant Behavior and Development, Volume 34, Issue 3, June 2011, Pages 447-458.


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