Effects of transcranial direct current stimulation combined with listening to preferred music on memory in older adults

Chow, Ricky; Noly-Gandon, Alix; Moussard, Aline; Ryan, Jennifer D.; Alain, Claude

doi:10.1038/s41598-021-91977-8

Cited by 11 publications

(28 citation statements)

References 89 publications

(108 reference statements)

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“…As personalized music has shown to impact emotional affect in individuals with dementia, it can be further hypothesized that there may be improvements in cognitive performance following preference-based musical listening. For example, enhanced cognitive abilities were demonstrated in populations of healthy older adults after listening to autobiographicallysalient music [18]. Another study in the review also demonstrated a retention in cognitive performance in individuals with dementia after listening to personalized music [14].…”

Section: Discussionmentioning

confidence: 92%

The Effects of Personalized Music Listening on Older Adults with Dementia: A Literature Review

Ellewela

Yuen

2021

URNCST Journal

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Introduction: Dementia affects millions of people globally and can impact the emotional and cognitive well-being of these individuals. Interventions such as music therapy, including the use of personalized music, are increasingly being used to help reduce the severity of symptoms and enhance patient care. Research has shown that music is strongly associated with long-term memory, and the use of familiar songs may trigger emotional arousal and past memories in individuals with dementia. However, the effectiveness of listening to personalized music on alleviating dementia symptoms is unclear. The aim of this review was to examine the effects of listening to personalized music on emotional arousal and mood in individuals with dementia. Methods: Two databases, Embase and PubMed, were searched for articles exploring personalized or preferred music listening in older adults with dementia and were screened by two co-authors. Results: A total of 9 studies were included in the review. Five of the included studies found positive impacts on mood, such as increased happiness. Two studies demonstrated decreases in agitation, and two studies demonstrated decreases in anxiety. Discussion: This review found an overall positive impact of listening to personalized music on emotion and behavioural and psychological symptoms in dementia (BPSD). The improved emotional arousal and mood shown in this review may lead to enhanced motivation during cognitive tasks, ultimately improving overall performance. Conclusion: Although listening to personalized music was found to strengthen emotional affect and mood, there are inconsistencies in the parameters used during musical interventions. Thus, it is evident that further research is required to determine the optimal guidelines for implementing personalized music listening interventions.

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Section: Discussionmentioning

confidence: 92%

The Effects of Personalized Music Listening on Older Adults with Dementia: A Literature Review

Ellewela

Yuen

2021

URNCST Journal

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“…However, the older adult participants who received stimulation during practice no longer had a motor performance deficit. While the findings from these studies suggest that tDCS may improve motor learning for older adults, other studies show either no benefit or even poorer performance when tDCS is paired with task practice (Mooney et al, 2019;Muffel et al, 2019;Habich et al, 2020;Chow et al, 2021). For example, one study found no benefit of a single session of anodal M1 tDCS as older and young adult participants learned a sequential isometric force task using their non-dominant hand during practice (Mooney et al, 2019).…”

Section: Introductionmentioning

confidence: 85%

Anodal Transcranial Direct Current Stimulation Over Prefrontal Cortex Slows Sequence Learning in Older Adults

Greeley

Barnhoorn

Verwey

et al. 2022

Front. Hum. Neurosci.

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Aging is associated with declines in sensorimotor function. Several studies have demonstrated that transcranial direct current stimulation (tDCS), a form of non-invasive brain stimulation, can be combined with training to mitigate age-related cognitive and motor declines. However, in some cases, the application of tDCS disrupts performance and learning. Here, we applied anodal tDCS either over the left prefrontal cortex (PFC), right PFC, supplementary motor complex (SMC), the left M1, or in a sham condition while older adults (n = 63) practiced a Discrete Sequence Production (DSP), an explicit motor sequence, task across 3 days. We hypothesized that stimulation to either the right or left PFC would enhance motor learning for older adults, based on the extensive literature showing increased prefrontal cortical activity during motor task performance in older adults. Contrary to our predictions, stimulation to the right and left PFC resulted in slowed motor learning, as evidenced by a slower reduction rate of reduction of reaction time and the number of sequence chunks across trials relative to sham in session one and session two, respectively. These findings suggest an integral role of the right PFC early in sequence learning and a role of the left PFC in chunking in older adults, and contribute to mounting evidence of the difficultly of using tDCS in an aging population.

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“…Relative to our interest in auditory processing, both long- and short-term music engagement in older adults has also been associated with neural and behavioral improvements in sensory and speech processing (e.g., Parbery-Clark et al, 2012 ; Alain et al, 2014 , 2019 ; Bidelman and Alain, 2015 ). In line with the arousal-and-mood hypothesis ( Thompson et al, 2001 ; Husain et al, 2002 ), we have proposed that listening to autobiographically salient music may have the potential to improve short-term performance in certain cognitive domains, including speech processing, by improving positive affect and heightening arousal state ( Chow et al, 2021 ).…”

Section: Introductionmentioning

confidence: 95%

“…Autobiographically salient music (i.e., music evoking salient personal memories), in particular, can evoke strong positive affect and heighten arousal ( Belfi et al, 2016 ). In older adults, music listening can boost various cognitive domains related to memory including autobiographical memory recall ( El Haj et al, 2015 ), working memory (WM) ( Chow et al, 2021 ), and semantic memory ( Bottiroli et al, 2014 ). Relative to our interest in auditory processing, both long- and short-term music engagement in older adults has also been associated with neural and behavioral improvements in sensory and speech processing (e.g., Parbery-Clark et al, 2012 ; Alain et al, 2014 , 2019 ; Bidelman and Alain, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

“…To this end, we recently investigated the synergistic effects of brief (20 min) tDCS and autobiographically salient music listening on cognitive skills in healthy older adults ( Chow et al, 2021 ). EEGs recorded during word recognition recall tracked changes in brain function following tDCS neurostimulation over dorsolateral prefrontal cortex (DLPFC).…”

Section: Introductionmentioning

confidence: 99%

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Transcranial Direct Current Stimulation Combined With Listening to Preferred Music Alters Cortical Speech Processing in Older Adults

et al. 2022

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Emerging evidence suggests transcranial direct current stimulation (tDCS) can improve cognitive performance in older adults. Similarly, music listening may improve arousal and stimulate subsequent performance on memory-related tasks. We examined the synergistic effects of tDCS paired with music listening on auditory neurobehavioral measures to investigate causal evidence of short-term plasticity in speech processing among older adults. In a randomized sham-controlled crossover study, we measured how combined anodal tDCS over dorsolateral prefrontal cortex (DLPFC) paired with listening to autobiographically salient music alters neural speech processing in older adults compared to either music listening (sham stimulation) or tDCS alone. EEG assays included both frequency-following responses (FFRs) and auditory event-related potentials (ERPs) to trace neuromodulation-related changes at brainstem and cortical levels. Relative to music without tDCS (sham), we found tDCS alone (without music) modulates the early cortical neural encoding of speech in the time frame of ∼100–150 ms. Whereas tDCS by itself appeared to largely produce suppressive effects (i.e., reducing ERP amplitude), concurrent music with tDCS restored responses to those of the music+sham levels. However, the interpretation of this effect is somewhat ambiguous as this neural modulation could be attributable to a true effect of tDCS or presence/absence music. Still, the combined benefit of tDCS+music (above tDCS alone) was correlated with listeners’ education level suggesting the benefit of neurostimulation paired with music might depend on listener demographics. tDCS changes in speech-FFRs were not observed with DLPFC stimulation. Improvements in working memory pre to post session were also associated with better speech-in-noise listening skills. Our findings provide new causal evidence that combined tDCS+music relative to tDCS-alone (i) modulates the early (100–150 ms) cortical encoding of speech and (ii) improves working memory, a cognitive skill which may indirectly bolster noise-degraded speech perception in older listeners.

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Effects of transcranial direct current stimulation combined with listening to preferred music on memory in older adults

Cited by 11 publications

References 89 publications

The Effects of Personalized Music Listening on Older Adults with Dementia: A Literature Review

The Effects of Personalized Music Listening on Older Adults with Dementia: A Literature Review

Anodal Transcranial Direct Current Stimulation Over Prefrontal Cortex Slows Sequence Learning in Older Adults

Transcranial Direct Current Stimulation Combined With Listening to Preferred Music Alters Cortical Speech Processing in Older Adults

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