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May 18, 2020 37 mins

"You highlighted the difference that makes a difference. Тhis is not only a neat catchphrase, but there's also something very deep about it. And sleep, in fact, is a really interesting aspect of behavior, that maybe gives us a window on the difference between conscious and non-conscious processes in the brain, because there is a distinct difference and it is recordable."

- David Edelman, PhD, A neuroscientist and a Visiting Scholar in the Department of Psychological and Brain Sciences at Dartmouth College

 

EPISODE 9: Roundtable Part Two - What is the Difference That Makes a Difference? 

 

In a continuation from their previous conversation, Neuroscientist David Edelman and Developmental Neuropsychiatrist Jay Giedd, Professor of Psychiatry at UCSD School of Medicine and Director of Child & Adolescent Psychiatry at Rady Children's Hospital are joined by Bernard Baars, the originator of the global workspace theory and global workspace dynamics, a theory of human cognitive architecture, the cortex and consciousness. In this contemplative conversation the trio touches on subjects involving how consciousness gets defined, the developing process of an adolescent human brain, and the role that sensory organs play in an individual's perception of reality. 

Get your 40% Discount for your copy of Bernie Baars' acclaimed new book On Consciousness: Science & Subjectivity - Updated Works on Global Workspace Theory

 

Talking Points
  • 0:00 – Intro by David Edelman.
  • 2:00 – David Edelman welcomes Bernard Baars to the conversation.
  • 2:31 – Edelman initiates the discussion by revealing what consciousness means to him and how it could be reduced to main aspects (An idea which is based on his father’s views).
  • 6:22 – Baars points out that the exploration of consciousness is an idea that has been an inevitable part of humanity and a necessary trait.
  • 9:40 – Edelman and Baars discuss the importance of being able to socially broadcast your model of the world as part of the conscious experience.
  • 13:17 - Giedd and Edelman discuss whether having some type of social skills is a requirement for consciousness or if it is instead a product of it.
  • 19:12 – Jay makes a connection between social skills and the development of the cortex, its structure, and how important it appears to be for the emergence of consciousness
  • 22:12 – The development and integration of neuronal connections in the brain, responsible for essential bodily functions such as heart rate and breathing.
  • 24:35 – Is consciousness a constant or are there variations of it?
  • 26:22 – The uniqueness of the olfactory system and its close interconnectedness to the emotional system.
  • 30:31 – The sensation of smell and the human brain’s inability to recreate a memory of smell, the way it would for a visual image
  • 32:11 – Baars steers the conversation towards visual perceptional differences.
  • 34:55 – Jay Giedd discusses some of the rare conditions in humans which allow for the richer perception of external stimuli 

 

Summary of the Conversation

Bernard Baars has often referred to consciousness as the difference that makes a difference. When we reflect on our everyday experience versus the absence of anything attended to or recalled, as is the case during a deep, dreamless sleep or under general anesthesia — that difference which distinguishes conscious experience from the rest of our mental lives becomes quite obvious.But, how would we characterize that difference?What is it about a particular animal’s makeup — its nervous and sensory systems, its behavior, its social interactions — that singles

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