Los ritmos cerebrales del tango

Understanding Tango Beyond Dance

Introduction to the Talk

• The speaker introduces the topic of tango, emphasizing a perspective that goes beyond just dance to explore its history, evolution, and physical effects.

• María Ángeles Fit is introduced as a key speaker, known for her contributions to the field and her association with a participatory society.

Speaker's Background

• The speaker's partner will present María Ángeles Fit’s professional background, highlighting her expertise in neurology and neurophysiology.

• Fit studied medicine in Zaragoza and specialized in neurology during her studies.

Contributions to Neurophysiology

• She evolved into neurophysiology, becoming one of Spain's leading figures in this specialty.

• Fit was among the few who performed nerve conduction monitoring during spinal surgeries, which was crucial for preventing paralysis.

Conceptual Framework of Neuroscience

• The talk emphasizes that neuroscience recognizes humans as brains within bodies that move; music plays a significant role in this interaction.

• The title "Complicity: The Rhythm of Brain Waves in Tango" suggests an exploration of how tango influences brain rhythms.

Music and Health Connection

• Music can evoke strong emotional responses and has therapeutic potential; music therapy is recognized for its healing properties.

• Historical references indicate that music not only relaxes but also promotes happiness; ancient texts acknowledged these benefits.

The Biological Rhythms of Life

Biological Metronome Concept

• Humans are described as biological metronomes where biological rhythms govern bodily functions; life is characterized by oscillations rather than linear progression.

Classification of Biological Rhythms

• Various biological rhythms exist: circadian (daily), ultradian (frequent like heart rate), and infradian (slower hormonal rhythms).

Importance of Rhythm Understanding

• Recognizing these rhythms is essential for understanding brain function and overall health; disruptions can lead to cognitive decline.

Understanding the Impact of Tango on Brain Function

The Role of Hormonal Cycles and Brain Rhythms

• The discussion begins with the importance of hormonal cycles and brain rhythms, particularly those analyzed through the troncevalograma, which includes delta, beta, and alpha waves.

• Aging is linked to a pathological loss of rhythm coherence in the brain, akin to an out-of-tune instrument. This dissonance can be addressed through rhythmic training.

Tango as a Therapeutic Tool

• Tango serves as an external pacemaker that stabilizes internal rhythms through music and movement, enhancing respiratory patterns and memory restoration.

• The biomechanics involved in tango dancing introduce axial torsion in the torso and pelvis, leading to significant sensory feedback that can be measured clinically.

Neuroplasticity and Movement

• Engaging in tango involves complex neurophysiological responses that can be recorded via evoked potentials during dance movements. This highlights how tango is not merely physical but also involves cognitive processing.

• The concept of neuroplasticity is introduced as a continuous process of synaptic remodeling essential for adapting to new experiences like learning to dance tango.

Cognitive Differences Across Age Groups

• Young dancers exhibit superior cognitive flexibility due to their robust neural architecture, allowing them to create intricate motor patterns while dancing. Their brains function like advanced supercomputers capable of high-level coordination.

• A young dancer's brain has significant cognitive reserves that facilitate better integration of motor circuits and enhance overall coordination during dance activities.

Multitasking Challenges in Tango

• Dancing tango requires simultaneous processing across multiple information streams: dynamic proprioception (body awareness), spatial navigation (mapping surroundings), musical interpretation (decoding rhythm), and non-verbal communication (the embrace). Each aspect engages different areas of the brain crucial for effective performance.

• The interplay between various neural networks—default mode network (introspection) and executive control network—demonstrates how tango fosters functional hyperactivity within these systems during performance, promoting enhanced cognitive engagement.

The Cognitive Benefits of Dance

The Importance of Cognitive Reserve

• Young individuals are building a cognitive reserve, which acts as a safety net for their mental health and well-being. This concept is crucial for public awareness.

• Brain-Derived Neurotrophic Factor (BDNF) is highlighted as a significant protein that activates receptors, promotes lactogenesis, and enhances cognitive, psychomotor, and neuropsychiatric reserves.

Neuroimaging Evidence

• The benefits of dance are not merely theoretical; they have been substantiated through specialized magnetic resonance imaging studies demonstrating these effects in young dancers.

Adult and Elderly Brain Functionality

• In adults and the elderly, there is a need to fine-tune brain functions that may be deteriorating due to age or illness. A neurochemical battle exists between negative factors (like stress hormones) and positive ones (like oxytocin).

Stress Hormones vs. Positive Neurotransmitters

• Chronic stress leads to increased cortisol levels, which can be neurotoxic and detrimental to the hippocampus—the memory storage area—resulting in memory failures and disorientation.

• Positive neurotransmitters such as oxytocin, serotonin, and dopamine counteract stress effects by promoting social bonding and emotional well-being.

Mechanisms of Action in Dance

• Three fundamental mechanisms are identified:

• A dual-task mechanism involving coordination and spatial perfection located in different brain areas.

• Epigenetic modulation that addresses chronic low-grade inflammation associated with aging.

• Oxytocin cascades triggered by social interactions like hugging that mitigate neurotoxic effects from isolation.

Epigenetics in Brain Health

• Epigenetics involves changes in gene expression without altering DNA sequences. It plays a role in determining which genes are active or inactive based on environmental influences.

Conclusion on Dance's Impact on Aging

• While dance does not physically erase signs of aging, it significantly contributes to mental resilience by enhancing brain function across various age groups.

The Impact of Disease on Biological Harmony

Transition from Health to Disease

• The transition from health to disease disrupts biological harmony, leading to a breakdown in maintenance mechanisms and erosion of individual autonomy.

• This deterioration can manifest as a loss of repair capacity and functional ability, significantly impacting overall health.

Erratic Biological Rhythms

• Diseases like Alzheimer's lead to erratic biorhythms, particularly affecting the P300 wave in electroencephalograms.

• Such disruptions are especially evident in conditions like Parkinson's disease, where the nervous system fails to coordinate effectively.

Chaos in Neurological Functioning

• The chaotic nature of diseases results in a disjointed nervous system that struggles with coordination among its parts.

• In cases of hemorrhagic or thrombotic strokes, there is a failure akin to plumbing issues within the brain's architecture.

Role of Tango in Rehabilitation

• Engaging in tango provides neurological benefits by activating new synapses through improvisation and movement, surpassing traditional exercises.

• Tango acts as a neurological bypass for patients with motor control issues by utilizing auditory cues and rhythm.

Mechanisms Behind Tango's Effectiveness

• The embrace during tango offers external postural control that patients often lack, stimulating reward systems and combating depression.

• In Alzheimer’s patients, tango helps reconnect synaptic pathways affected by plaques and deposits, accessing preserved procedural and emotional memories.

Cognitive Benefits of Dance Therapy

• Regular practice of tango reduces dementia risk due to its improvisational nature which builds cognitive reserve.

• The constant weight transfer during dance recalibrates gait instinctively while physical contact enhances sensory feedback.

Addressing Memory Issues in Alzheimer's

• Alzheimer’s creates significant memory blockages due to synaptic disconnection; however, activities like tango serve as keys unlocking preserved memories.

• Physical contact during dance reduces agitation and promotes oxytocin release, enhancing executive functions crucial for cognitive processing.

Understanding the Role of Tango in Neurorehabilitation

The Impact of Asymmetry and Brain Connectivity

• The discussion begins with the concept of asymmetry loss due to injury, emphasizing that whether the injury is inflammatory or obstructive, it disrupts brain connectivity.

• A symmetrical gait is crucial for postural control; tango is presented as a key method to regain this symmetry through weight transfer during dance.

• Tango requires controlled weight shifts between affected and unaffected limbs, helping reconstruct the body’s sensory map and providing active feedback for stabilization.

The Neurochemical Benefits of Dancing Tango

• The rhythm of tango engages both hemispheres of the brain, promoting coordination between limbs and enhancing overall motor function.

• BDNF (Brain-Derived Neurotrophic Factor) plays a vital role in neuroprotection and synaptic plasticity; its levels are significantly reduced in various diseases.

• Moderate aerobic exercise like tango can synergistically enhance BDNF release, which is essential for cognitive function recovery.

Social Interaction and Emotional Connection Through Dance

• Tango fosters social interaction through physical embrace, which enhances emotional connections between partners while dancing.

• The phrase "neurons that fire together wire together" illustrates how synchronized movements in tango stimulate both motor and sensory areas in the brain.

The Physiological Effects of Embracing During Dance

• The embrace in tango serves as more than just a physical connection; it activates tactile fibers that contribute to empathy and emotional understanding between dancers.

• This tactile interaction allows dancers to intuitively read each other's intentions, enhancing communication without words.

Neurochemical Cascades Induced by Dancing

• Engaging in tango leads to significant neurochemical changes: increased oxytocin promotes trust, dopamine enhances pleasure circuits, while cortisol levels decrease reducing stress responses.

• Acetylcholine's increase supports memory functions within the hippocampus, showcasing how dance acts as a biological regulatory system against isolation-induced inflammation.

Synchronization and Collective Well-being

• Social interactions during dance create synchrony among participants' brain waves and respiratory rhythms, fostering a collective state beneficial for mental health.

• Engaging with others through dance combats social isolation effects by creating an environment conducive to healing from neurotoxic impacts.

Neurotransmitters and Dance: A Pharmacological Perspective

The Role of Neurotransmitters in Dance

• Weak or malfunctioning neurotransmitters in one dancer seek compensation through the stability provided by their partner.

• The concept of pharmacokinetics is introduced, comparing the effects of medication to the physiological impacts of dancing, particularly tango.

Hormonal Changes During Tango

• Initial cortisol levels are elevated but decrease significantly after several tangos, while oxytocin levels rise progressively, indicating increased happiness.

• Dopamine levels increase more slowly, reaching a peak during the dance, highlighting a complex neurophysiological process involved in dancing.

Stages of Emotional and Physiological Response

• In early tangos, partners synchronize their systems; cortisol remains slightly elevated as they begin to connect emotionally.

• By the fourth tango, there is a saturation of dopamine leading to a state of euphoria where cognitive functions may diminish.

Consequences of Abruptly Ending a Dance

• Cutting off a tango prematurely can cause physical discomfort akin to pain due to disrupted emotional and physiological processes.

• This abrupt end can be likened to stopping medication suddenly, resulting in psychological microtrauma.

Cultural Insights on Tango Dancing

Traditional Practices and Their Significance

• The wisdom from experienced dancers (milongueros) reflects an understanding of dance's impact on mental health without scientific terminology.

• Common practices like dancing three or four tangos are rooted in achieving optimal emotional states without causing fatigue.

Understanding Rhythms and Emotional Responses

• Different rhythms challenge vestibular balance; three tangos serve as a threshold for tolerance before fatigue sets in.

• Four tangos allow for deeper emotional connection through slower rhythms that promote oxytocin release.

The Therapeutic Potential of Tango

Neurobiological Mechanisms at Play

• The interplay between technique and emotion becomes evident as dancers reach heightened states during specific songs.

• Traditional knowledge among milongueros aligns with modern understandings of biological rhythms and brain function related to happiness.

Conclusion: Tango as Therapy

• Ending a dance too soon disruptively parallels cutting off music before its climax; it emphasizes the importance of completing experiences for emotional well-being.

• Overall, tango serves not just as an art form but also as a precise neurobiological technology promoting harmony and healing.

The Role of Dance and Emotion in Health

The Connection Between Dopamine and Improvisation

• Discussion on dopamine as a "happiness hormone" and its role in cognitive reserve, helping to defend against future deterioration.

• Emphasis on improvisation as a biological co-regulation space, where traditional labels like patients or doctors dissolve into a dynamic ecosystem.

Movement Prescription for Life Enhancement

• A medical perspective highlighting that conventional medicine extends chronological life, but disciplines like tango infuse those years with vitality.

• Recommendation of dancing at least one to two tangos per week, noting minimal side effects such as sore feet or an addiction to dance.

Insights from Personal Experience

• Speaker shares personal anecdotes about the impact of tango on well-being, humorously suggesting abandoning medication for dance instead.

• Distribution of pamphlets summarizing the talk's key points and inviting questions from the audience.

Scientific Foundations of Dance Emotions

• Appreciation expressed for scientific explanations behind emotions felt while dancing, bridging personal experiences with academic insights.

• Mention of past discussions regarding musical arrangements in tango classes, emphasizing clarity brought by scientific arguments.

Rhythm and Hormonal Responses in Tango

• Analysis of how different rhythms affect brain responses during tango; slower rhythms promote hormonal changes more gradually.

• Explanation that faster rhythms can lead to quicker emotional peaks but may also result in fatigue-related cortisol spikes if not managed properly.