Summary
Highlights
Neil deGrasse Tyson opens the StarTalk Live event at BAM, introducing his guests: comedians Michael Ian Black and Paul Rudd, neuroscientist Dr. Heather Berlin, and neuroscientist and actress Mayim Bialik. The conversation quickly shifts to Mayim Bialik's vegan cookbook, humorously linking it to the future of space travel and Mars colonization, where efficient, plant-based diets would be essential. The panelists discuss the potential for terraforming Mars and the practicalities of long-duration space missions, including food sustainability.
The discussion transitions to Mayim Bialik's role as Amy Farrah Fowler on 'The Big Bang Theory.' Neil deGrasse Tyson praises the show's portrayal of 'geeks' and scientific characters. Mayim explains that many characters, particularly Sheldon, exhibit traits on the neuropsychiatric spectrum, such as Asperger's or OCD. Dr. Heather Berlin elaborates on the evolving understanding of psychiatric diagnoses, noting that the DSM no longer uses 'Asperger's' and now views conditions like autism as spectrum disorders. The conversation highlights the show's approach to humanizing and not pathologizing these characters, suggesting that society is moving away from rigid labeling and towards understanding individual differences.
Mayim Bialik discusses her experience as a woman in science and her portrayal of a female scientist on television. She emphasizes that while her character is sometimes presented stereotypically, it's a specific creative choice for the show. The panelists then tackle the stereotype that extreme scientific talent correlates with a lack of social graces, with Dr. Berlin suggesting that such fields might attract individuals who are already more asocial. Mayim also shares her involvement with STEM initiatives as a spokesperson for Texas Instruments, highlighting the importance of engaging students in science and technology. The segment briefly touches on early childhood education and the teaching styles that can foster scientific interest.
The second segment begins with a deep dive into consciousness and self-awareness. Dr. Heather Berlin defines consciousness as first-person subjective experience and distinguishes it from self-awareness, explaining that one can be conscious without being self-aware (e.g., babies). The panelists discuss lucid dreaming, coma states, and cutting-edge research using fMRI to detect awareness in comatose patients. The conversation shifts to neuroplasticity, the brain's ability to adapt and change, particularly in extreme environments like space. They explore how astronauts' brains and bodies adapt to zero-gravity, and the ethical considerations of bringing children into space due to critical developmental periods. The necessity of sleep is also debated, with Dr. Berlin explaining its role in brain cleaning, memory consolidation, and preventing neurodegenerative diseases.
The panel discusses the future of neuroscience, from understanding the brain's vast complexity to developing treatments for neurological disorders like Alzheimer's and Parkinson's. Dr. Berlin explains the challenge of mapping the human brain given its 100 billion neurons and quadrillion connections. The conversation touches on whether consciousness is an emergent property of the brain and the philosophical 'hard problem' of subjective experience. They explore advanced technologies like optogenetics for studying and manipulating neural circuits. The ethical implications of brain enhancement, such as improving memory or intelligence, are raised, highlighting concerns about equitable access and the potential for a dystopian future where only the wealthy can afford such advancements. The segment concludes with reflections on the potential for neuroscience to understand and control human emotions and behaviors.
During the Q&A session, an audience member asks about savant syndrome and whether its extraordinary abilities can be replicated or 'hacked.' Dr. Berlin explains that savants' brains are wired differently, often with specialized areas at the cost of others, suggesting it's not simply an ability that can be universally learned. Another question addresses the intersection of comedy and neuroscience, with Mayim Bialik and Dr. Berlin discussing the cognitive processes behind creativity and improvisation. A controversial topic of quantum theories of the mind is raised, which Neil deGrasse Tyson dismisses as an attempt to explain the mysterious with the mysterious, while Dr. Berlin clarifies the lack of scientific evidence. The existence of free will is also debated, with Dr. Berlin explaining that neuroscience suggests the brain often makes decisions before conscious awareness, though this does not negate individuality.
Continuing the Q&A, an audience member asks about the use of psychotropic and hallucinogenic drugs in treating brain disorders. Dr. Berlin mentions current research using substances like ketamine for depression and MDMA for PTSD, noting their therapeutic potential under supervised conditions. Another question probes deja vu, which Dr. Berlin attributes to a triggered sense of familiarity in the brain and the brain's inherent redundancy. The final and most poignant question of the night comes from a nine-year-old child: 'If someone was born in space, how would that affect the way their brain develops?' Neil deGrasse Tyson and the panel acknowledge this as a brilliant, yet ethically unapprovable, experiment. They discuss how a lifetime in zero-gravity would alter fundamental perceptions of 'normal' and potentially lead to different understandings of physics and inertia, illustrating the profound influence of environment on brain development.