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martedì 21 luglio 2015

The neuropsychology in Epilepsy is Dancing

La neuropsicologia in Epilepsy is Dancing.



There is a song about epilepsy that you can listen among those randomly chosen from your playlists.
It is the second track of the album The Crying Light, released by Antony and the Johnsons in 2009. You need to listen to this song many times, even in the different live versions, for the infinite modulations of the unique voice of Antony Hegarty.
It's not the first time that pop music sings epilepsy: Sallie Baxendale in 2008 published a review of the representations of epilepsy in different genres, from hip-hop to rhythm and blues (1).
Many of the ancient associations of epilepsy with madness, horror, and lunacy can be found in these lyrics. However, the language of epilepsy has also been appropriated by some musical artists to represent a state of sexual ecstasy and dance euphoria.
Tuft and Nakken (2) in 2014, added other aspects expressed in many pop songs, and concerning social stigmatisation and artistic ecstasy.
In the future it will hopefully be impossible to portray people with epilepsy in the same negative light as previously. Epilepsy associations the world over are working to prevent the spread of prejudiced lyrics among people, but to the extent to which popular music reflects popular attitudes to epilepsy, it appears as though we still have a long way to go to de-mystify the disease and eliminate prejudices.
In Epilepsy is Dancing for the first time, the terms are not negative nor pessimistic. In addition, if in the official video a seizure turns into a paradisiacal dance, the lyrics refer to the different clinical manifestations of the different forms of seizures.
Beyond the relationship between epilepsy and evil spirits, and the fight against stigma, the song gives an apparently dreamlike description but, in fact, it contains an objective report of what a seizure is.

Furthermore, the lyrics are rich with references to the neuropsychology of epilepsy.

Let's start with the title. In the popular culture, there is an ancient association between epilepsy and dance, a dance that can become contagious (1).

Is this true from an epileptological perspective?
Yes, in some cases, Epilepsy is Dancing.

In the clinical and scientific literature, there are few cases of seizures manifesting as dancing in epileptic adults. The following three cases are quite well documented.

Kuscu and colleagues in 2008 (3) reported the case of a 17 years old girl presenting temporal epilepsy due to left mesial temporal sclerosis. Until the age of 14, she had experienced rare seizures with agitation and hallucintaions, treated as psychotic episodes. Three years later the frequency of seizures had increased and she was hospitalized to underwent neurological, electrophysiological and neuroradiological examinations. The EEG recordings showed paroxysmal activity in the temporal lobe, that partially spread to the left frontal lobe. After the surgical treatment with selective left amygdalohippocampectomy the girl has been seizure-free.
The videorecordings show different seizures starting with auras, during which she was able to report the arrival of the seizure, and continuing in unconscious complex motor behaviors - like a ballet – accompanied by her singing.

Ictal singing due to left mesial temporal sclerosis

The second case was published by Barker and colleagues in 2011 (4) and refers to a 60-year-old woman with temporal lobe epilepsy. Her seizures showed some EEG abnormalities in the left temporal lobe, and shortly after, the bilateral foot movements emerged, gradually tooking the form of tap dancing.
 

Tap dancing in epilepsy

In the last case report (5) are presented the clinical data of a 39-year-old man with temporal lobe epilepsy and EEG abnormalities suggestive of a left temporal focus. In the video, the seizure starts with the typical oral automatisms of temporal seizures, followed by the complex dancing movements, suggestive of frontal involvement.
 

TeachingVideo NeuroImages: Dancing epilepsy

So, epilepsy is dancing, at least in some cases and for some seizures.
However, it is a dance caused by the paroxysmal activity of the brain which has no beneficial effects. On the contrary, it may affect the activities of daily living, personal relationships, work activities and quality of life. Therefore, it is a dance that, like all seizures, need to be treated as a clinical manifestation.

In Epilepsy is Dancing one can find much more from a neuropsychological point of view: in the lyrics – verse by verse - there are many of the clinical manifestations of different epilepsies.

Epilepsy is dancing
She's the Christ now departing

The first verse include a reference to Christ, a kind of experience similar to the mystical and religious hallucinations observed in temporal lobe epilepsy, with individual specific contents depending on the cultural context.
As suggested by Tuft and Nakken (2), and considering that Antony Hegarty is also a visual artist, the verse may refers to the Transfiguration (1516-1520) by Raphael. In addition, here there is an identification between the two figures of Christ and the epileptic, overcoming their spatial and metaphysical separation.
As pointed out by Janz (6), there are
only two characters among the 26 represented in whom we see the two eyes. Christ’s look is lost in the beyond while the eyes of the young boy are bulging, the right eye directed towards Jesus and the left one towards his father.
By synchronizing both scenes Raphael demonstrated a significant correspondence between Christ and the epileptic boy, which reveals the epileptic seizure as a symbolic representation of a transcendent event.
Also Mann (7), in reporting an epileptic case study, refers to the Transfiguration and to the Christian symbolism:
Behind Christ, the light of the cloud reminds one of the divine voice that asserted he was the beloved son, while the son’s mouth lets out that epileptic scream... So, the vision is doubled by two vocal manifestations, a divine and an evil one.
If the boy is the antithesis down on the dark and tormented earth, clearly, Jesus represents the divine thesis up in the bright and serene heaven.
Many prejudices against epilepsy originated from this classical representation.

In the verse She's the Christ now departing, the two figures seems to become one and it's no coincidence that a girl (in the official video is interpreted by Johanna Constantine) is having a seizure. The themes regarding the feminin are always present in the interviews and in the artistic expressions of the transgender singer and artist.

And I'm finding my rhythm
As I twist in the snow
The EEG rhythm - and its abnormalities - is the hallmark of the epileptic disorders. Each individual with epilepsy shows a quite typical set of seizures, reflecting specific anatomo-functional alterations.
For example, the EEG of generalized tonic-clonic seizures can show a desynchronization, followed by recruiting rhythms in the tonic phase and by slow waves decreasing in frequency in the clonic phase.
Rhythm abnormalities are accompanied by clinical manifestations: the tonic phase take the form of muscle contraction, with rigidity and axial extension, apnea and cyanosis are common; in the clonic phase, bilateral convulsive movements occur.

All the metal burned in me
Down the brain of my river
Pathophysiologically, a seizure results from a paroxysmal electrical discharge of synchronized groups of neurons. The cell membrane of the epileptogenic neurons undergo a prolonged depolarization and action potential occurs, corresponding to a spike on the EEG. The paroxysmal depolarization then alters the normal balance between pumps and channels that regulates metals and electrolytes (sodium, potassium, calcium and chlorides) in the membrane of the neuron.

That fire was searching
For a waterway home
The activation of inhibitory mechanisms terminates the seizure and restores the balanced excitatory-inhibitory environment. The regular exchange of ions on the two banks (intracellular and extracellular) of the neuronal membrane is gradually reached.

I cry glitter is love!
The clinical manifestations of sensory seizures include visual, auditory, olfactory, or gustatory phenomena. In the visual modality, the sensory effects may consists of glitter, colored dots, or lights, appearing in the visual field. In occipital epilepsy, elementary - scotomas and phosphenes – and complex – illusions and hallucinations – phenomena are reported.
 
Elementary visual phenomena in occipital seizures

Other types of seizures can occur with affective symptoms: sudden, intense and unjustified emotions, often negative (fear, sadness) and more rarely positive (happiness, ecstasy).

My eyes pinned inside
With green jewels
Hanging like Christmas stars
From a golden vein
Here is another reference to visual illusions and hallucinations.
The green jewels hanging in the eyes, and the supposed reflex response, evoke to the clinician the small eyelid movements observed in some seizures, from fluttering to myoclonic jerks. In children, eyelid myoclonia with or without absences is a form of epilepsy manifesting with myoclonic jerks, eye closure-induced seizures and photosensitivity.
Golden vein is also the title of a 1995 Cocteau Twins song - Oh, in their eyes and then...

As I came to a screaming
Hold me while I'm dreaming
Screaming is typical of frontal seizures originating in medial regions (the supplementary motor area and the cingulate gyrus) and involving asymmetrical, bilateral posturing and/or complex automatisms such as swimming, pedaling and dancing. These hypermotor seizures, can be accompanied by facial grimacing, vocalizations or speech arrest, and are most often nocturnal.

For my fingers are curling
And I cannot breathe
Tonic seizures manifest with diffuse muscle contraction of head, trunk, limbs, and hands, accompanied by loss of consciousness, apnea and typical EEG rhythm abnormalities.

Then I cried in the kitchen
How I'd seen your ghost witching
As a soldering blue line
Between my eyes
Seizures from the occipital and the parieto-occipital lobes are characterized by visual and spatial phenomena. Perceived objects may appear diminished or enlarged (metamorphopsia), stationary objects seen as moving or, in more complex forms, objects are seen with inappropriate orientation in space.
In teleopsia, an error occurs in perceiving the distance of objects; in enhanced stereoscopic vision, near object are perceived very close and distant object appear very far away. Autoscopic seizures originate in the temporo-parietal regions and are characterized by the perception of the image of one's own body in the outer space, accompanied by negative emotions and confusion.

Cut me in quadrants
Gray H. Anatomy of the Human Body, 1918

Leave me in the corner
The end of the parieto-occipital seizures manifests with transient numbness, inability to move in the absence of loss of strength and post-ictal blindness.

In the post-ictal phase the dreaming state terminates and consciousness gradually returns: the dance is about to end.
Oh now it's passing
Oh now I'm dancing

Some neurological and neuropsychological references in the lyrics probably emerge from a retrospective clinical reading and were unintentional. However, there seems to be some evidence of a preparatory study of epilepsy conducted by the author, leaving aside any metaphysical or religious interpretation.

In Epilepsy is Dancing, Antony Hegarty also plays an educational role in spreading the objective knowledge about epilepsy in popular culture.

And now, the full lyrics.
Have a good listening and knowing.

Epilepsy is dancing
She's the Christ now departing
And I'm finding my rhythm
As I twist in the snow

All the metal burned in me
Down the brain of my river
That fire was searching
For a waterway home

I cry glitter is love!
My eyes pinned inside
With green jewels
Hanging like Christmas stars
From a golden vein

As I came to a screaming
Hold me while I'm dreaming
For my fingers are curling
And I cannot breathe

Then I cried in the kitchen
How I'd seen your ghost witching
As a soldering blue line
Between my eyes

I cry glitter is love!
My eyes
Pinned inside
Sea green jewels
Hanging like Christmas stars
From a golden vein

Cut me in quadrants
Leave me in the corner
Oh now its passing
Oh now Im dancing

Update #1 (January 29th, 2016). The same day when I was writing this post, in Oslo (Norway), Mia Tuft and her colleagues Gjelsvik and Nakken were submitting the paper Epilepsy is Dancing to the journal Epilepsy and Behavior: wonderful things can happen. 
If you want the full-text, please write me at t.metitieri@gmail.com.

Update #2 (February 1st, 2016). I sent Antony Hegarty/Anohni the paper by Tuft & coll. and my post, via facebook. This was her reply: "thanks for the info! its very interesting! Anohni", wonderful things continue.

Related:
Debunking the psychological myths expressed by Antony in the second track of Cut the World:  L'effetto luna piena e la seconda traccia di Cut the World


1. Baxendale S. The representation of epilepsy in popular music. Epilepsy Behav. 2008;
12(1):165-169.
2. Tuft M, Nakken KO. Epilepsy and stigma in popular music. Tidsskr Nor Laegeforen.
2014;134:2290-3.
3. Kuscu DY, Kayrak N, Karasu A, Gul G, Kirbas D. Ictal singing due to left mesial temporal
sclerosis. Epileptic Disord. 2008;10(2):173-6.
4. Barker AS, Bowen JR, Sharrack B, Sarrigiannis PG. Tap dancing in epilepsy. Epilepsy
Behav. 2011;20(1):150-1.
5. Bagla R, Khoury JS, Skidmore C. Teaching Video NeuroImages: dancing epilepsy.
Neurology. 2009; 72(22):e114.
6. Janz D. Epilepsy, viewed metaphysically: an interpretation of the biblical story of the
epileptic boy and of Raphael's transfiguration. Epilepsia. 1986;27(4):316-22.
7. Mann MW. The epileptic seizure and the mystery of death in Christian painting. Epilepsy
Behav. 2010; 17(2):139-46.
 
For more information about epilepsy: 

- ILAE - International League Against Epilepsy http://www.ilae.org/ and  https://www.epilepsydiagnosis.org/
- LICE – Lega Italiana Contro l'Epilessia http://www.lice.it/ 


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