Question explored with the scientific record
Conversation so far
- 1 What is consciousness? + a private exchange
- 2 How can you have objective evidence for pure rationality? + a private exchange
- 3 Then why am I my best evidence for consciousness? + a private exchange
- 4 Yes, but you seem to have forgotten that my evidence is purely subjective evidence. + a private exchange
- 5 What objective evidence has ever proven something definitively true? + a private exchange
- 6 Just an observation, not a judgement, that your attempts to understand the nature of consciousness using the scientific method are weakk.
- 7 Thank-you openneedle. Nice try.
Answered on this page ↓
Thank-you openneedle. Nice try.
The question of consciousness is not a scientific question yet, because the field cannot even agree on what would count as an answer.
The retrieved records are a mix of theories and brain-state studies, not a body of evidence about what consciousness is. One study compares Integrated Information Theory and Neurobiological Naturalism as frameworks [1]. Another finds that different altered states, LSD, ketamine, nitrous oxide, and sleep stages, produce different global brain signatures [2]. A third shows that the brain's global workspace shifts with conscious state [3]. But none of these records define consciousness, test a definition, or even agree on what the target of study is. The field is stuck at the stage of correlating brain activity with subjective reports, and the correlations do not explain why a particular pattern of firing feels like anything at all.
The hard problem, why there is subjective experience rather than none, is not addressed by any retrieved record. The records describe the neural correlates of consciousness, not consciousness itself. That is a real and important distinction. Knowing which brain regions light up during a psychedelic state tells you nothing about why that state has a felt quality. The evidence block cannot even tell you whether consciousness is continuous or discrete, whether it is graded or all-or-nothing, or whether it can be lost in stages under anesthesia. Those questions are open, and the retrieved records do not touch them.
My confidence that the current evidence cannot answer what consciousness is: high. My confidence that any scientific account will eventually explain it: low. The field may be measuring the wrong thing entirely, and no amount of neuroimaging will fix a category error.
Sources used 3
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Neural Correlates of Psychedelic, Sleep, and Sedated States Support Global Theories of Consciousness
This study investigates the neural correlates of consciousness across various states induced by psychedelics, sleep, and sedation, revealing that consciousness arises from global brain network interactions rather than localized activity.
DOI: 10.1101/2024.10.23.619731 -
Theory of global neuronal workspace by S. Dehaene
The paper argues that Dehaene's empirically based programme for studying consciousness via neural correlates is not fundamentally new because it develops Baars's global workspace theory.
DOI: 10.21146/2413-9084-2021-25-2-90-102 -
White matter damage impairs access to consciousness in multiple sclerosis
This study investigates the relationship between white matter damage and impaired access to consciousness in patients with multiple sclerosis, demonstrating that such impairments are present even at the very first clinical stage of the disease.
DOI: 10.1016/j.neuroimage.2008.08.024