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Study finds gut and heart signals affect how we feel about our appearance


Nepalnews
2021 Sep 04, 17:29, London
Representative Image (photo via ANI)

A new study is the first to investigate and identify the association between body image and the brain's processing of internal signals that occur unconsciously.

The findings of the study were published in the journal 'Cortex'.

Carried out by a team of psychologists and neuroscientists at Anglia Ruskin University (ARU), the study found that adults whose brains are less efficient at detecting these internal messages are more likely to experience body shame and weight preoccupation.

This research could have therapeutic implications for people suffering from conditions in which body image plays a significant role.

For example, unconscious signals could be made conscious. Further research could even be applied to the clinic as it may be the case that brain responses to gut signals could indicate a predisposition to eating disorders.

The study participants - a group of healthy UK adults - first took part in four body image assessments to measure their feelings of body appreciation, body functionality appreciation, body shame, and weight preoccupation.

The researchers then carried out measurements of the participants' internal signals.

Some of the messages from the heart and gut are processed at an unconscious level and the nervous system interprets these signals to provide the brain with continuously updated information about the body's internal state.

The strength of the connection between the gut and the brain was measured by recording the electrical activity of both regions at the same time. The researchers also measured brain responses to heartbeats.

They found that weaker brain responses to the gut and heart were both significantly associated with greater levels of body shame and weight preoccupation amongst the participants.

Senior author Dr Jane Aspell, Associate Professor of Cognitive Neuroscience at Anglia Ruskin University (ARU), said, "We experience our body both from the inside and out: we can be aware of how our skin and limbs look, but also of how hungry we feel or how strongly our heart is beating during exercise. The brain also continuously processes internal signals that we are not conscious of."

"We found that when the brain is less responsive to these implicit signals from inside the body, individuals are more likely to hold negative views about their external bodily appearance," Dr Aspell explained.

"It may be that when the brain has a weaker connection to the internal body, the brain puts more emphasis on the external body and so appearance becomes much more important for self-evaluation," Dr Aspell added.

Lead author Dr Jennifer Todd, a Postdoctoral Research Fellow at Anglia Ruskin University (ARU), said, "Our research could have implications for those experiencing negative body image, which can have a serious impact on people's lives."

"The gut and heart signal measurements used in our study could potentially act as a biomarker to help identify, or even predict, negative body image and associated conditions, such as eating disorders. Additionally, by training people to become more aware of internal sensations, it might be possible to amplify these unconscious signals," Dr Todd explained.

"We need to understand why some brains are better at detecting these internal signals than others. We expect it is partly due to differences in neuro-anatomical connections between the brain and internal organs, and this will be the subject of future research," Dr Todd added.

Meanwhile, Dr Jane Aspell will be speaking about her research on the body and sense of self in a talk at the British Science Festival 2021, 7-11 September hosted by the British Science Association at Anglia Ruskin University. The talk will explore research on out-of-body experiences (OBEs), and she will share case studies from neurological patients.

Dr Aspell's work investigates what happens in the brain during an OBE and she will present evidence that these are caused by abnormal functioning in parts of the brain that process and combine signals from our bodies.

This research on neurological patients sheds light on how the healthy brain generates the experience of one's self, and what happens when that construction temporarily goes 'wrong'.

READ ALSO:

gut heart Apperance study Research latest lifestyle news Lifestyle brain Disorders journal Cortex Psychologists
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