Living with embodied vibrations: Sensory experiences following a traumatic brain injury

A Pianist's Technique Rehabilitation After Post-Traumatic Stress: An Autoethnographic Study

Individuals suffering from post-traumatic stress disorder (PTSD) have access to a number of sources detailing the neuropsychological effects and influence of PTSD on their day-to-day lives. While the information on the effects and influence of PTSD may be helpful in understanding the scope of the disorder, there is a lack of knowledge on how to rehabilitate musicians, specifically pianists, who experience these effects. PTSD is especially detrimental to a pianist's abilities, and consequently, without concentrated rehabilitation strategies designed to combat the effects of PTSD, pianists suffering from PTSD may forfeit professional opportunities resulting in loss of livelihood and income. After the first author's experience with PTSD, she suffered from the same effects frequently described in the literature. Through personal journalling, informed music teaching, and self-reflection, she aimed to discover whether musical rehabilitation was possible.

A mouse model of repeated traumatic brain injury-induced hearing impairment: Early cochlear neurodegeneration in the absence of hair cell loss

PURPOSE

Traumatic Brain Injury (TBI) is a major cause of death and disability worldwide. Mounting evidence suggests that even mild TBI injuries, which comprise >75% of all TBIs, can cause chronic post-concussive neurological symptoms, especially when experienced repetitively (rTBI). The most common post-concussive symptoms include auditory dysfunction in the form of hearing loss, tinnitus, or impaired auditory processing, which can occur even in the absence of direct damage to the auditory system at the time of injury. The mechanism by which indirect damage causes loss of auditory function is poorly understood, and treatment is currently limited to symptom management rather than preventative care. We reasoned that secondary injury mechanisms, such as inflammation, may lead to damage of the inner ear and parts of the brain used for hearing after rTBI. Herein, we established a model of indirect damage to the auditory system induced by rTBI and characterized the pathology of hearing loss.

METHODS

We established a mouse model of rTBI in order to determine a timeline of auditory pathology following multiple mild injuries. Mice were subject to controlled cortical impact at the skull midline once every 48 h, for a total of 5 hits. Auditory function was assessed via the auditory brainstem response (ABR) at various timepoints post injury. Brain and cochleae were collected to establish a timeline of cellular pathology.

RESULTS

We observed increased ABR thresholds and decreased (ABR) P1 amplitudes in rTBI vs sham animals at 14 days post-impact (dpi). This effect persisted for up to 60 days (dpi). Auditory temporal processing was impaired beginning at 30 dpi. Spiral ganglion degeneration was evident at 14 dpi. No loss of hair cells was detected at this time, suggesting that neuronal loss is one of the earliest notable events in hearing loss caused by this type of rTBI.

CONCLUSIONS

We conclude that rTBI results in chronic auditory dysfunction via damage to the spiral ganglion which occurs in the absence of any reduction in hair cell number. This suggests early neuronal damage that may be caused by systemic mechanisms similar to those leading to the spread of neuronal death in the brain following TBI. This TBI-hearing loss model provides an important first step towards identifying therapeutic targets to attenuate damage to the auditory system following head injury.

Hopeful adaptation after acquired brain injury: The case of late referrals in the Netherlands

A substantial number of people with 'mild' acquired brain injury (ABI) suffer from cognitive impairments that are not immediately acknowledged as such. Some are eventually referred to multidisciplinary rehabilitation care after months or years of suffering, which is why we have labelled them 'late referrals'. The aim of this paper is to add to the discussion on hopeful adaptation by focussing on the diverse adaptive strategies of late referrals. Hope is typically discussed as a positive emotion that can contribute to transformative processes, but that is also mirrored by despair. We conducted in-depth interviews with ten late referrals in the Netherlands. Our findings demonstrate that the trajectories of late referrals are characterised by wandering and navigating. Wandering is predominantly associated with feeling lost, and not knowing where one is going. While navigating is more purposeful, we found that our participants sometimes navigated in directions that turned out to be dead-end streets. We conclude that hopeful adaptation encompasses a circuitous way of trying and adapting and trying again. As a key recommendation for practice, we suggest that people with cognitive problems due to mild ABI should be supported in reducing the complexities of their everyday lives by taking up challenges one place at a time.