How Did Consciousness Evolve? - With Nicholas Humphrey

Explore the evolution of consciousness in this 50-minute lecture by renowned psychologist and philosopher Nicholas Humphrey. Delve into the theory of 'phenomenal consciousness' as Humphrey presents groundbreaking research and personal experiences, from discovering blindsight in monkeys to studying mountain gorillas in Rwanda. Examine the differences between sensation and perception, investigate how natural selection led to the development of sensations, and understand the purpose of phenomenal consciousness. Consider the possibility of sentience in animals, the effects of body temperature on brain speed, and evidence for consciousness in various species. Ponder whether machines could achieve consciousness and if sentient aliens might exist. Conclude by reflecting on the potential extinction of consciousness on Earth in this thought-provoking exploration of the mind.

Intro
Blind sight – seeing without a visual cortex
The difference between sensation and perception
Can consciousness be physically found in the brain?
How did natural selection lead to sensations?
How did this lead to consciousness in the human brain?
What is the point of phenomenal consciousness?
How human sentience led to theory of mind
Could animals also be sentient?
Body temperature and its effect on brain speed
Evidence for sentience in the animal kingdom
Mammals and birds show sentience – what about octopuses?
Can machines ever reach consciousness?
Could there be sentient aliens?
The extinction of consciousness on Earth