Do color similarity judgments vary with age, and do they reveal anything about qualia?
Proc Natl Acad Sci U S A October 20, 2025
Do color similarity judgments vary with age, and do they reveal anything about qualia?
Proc Natl Acad Sci U S A
ISSN 0027-8424; 1091-6490;
15 papers in the library · 1,389 citations · publishing 1958-2025
Papers
Reply to Bosten and Franklin: Children's color qualia structure is similar to adults'.
Proc Natl Acad Sci U S A October 20, 2025
Reply to Bosten and Franklin: Children's color qualia structure is similar to adults'.
Did the vilca/tobacco snuff combination at Chavín aim for an "ayahuasca effect"?
Proc Natl Acad Sci U S A September 15, 2025 Peter Whitridge
Did the vilca/tobacco snuff combination at Chavín aim for an "ayahuasca effect"?
If psychedelics heal, how do they do it?
Proc Natl Acad Sci U S A January 3, 2024 Carolyn Beans
Understanding the biological basis of social anxiety disorder (SAD), one of the most disabling of the anxiety disorders, will allow for novel treatment strategies to be developed. Here, we show that gut microbiota may be such a target. Mice ...Social anxiety disorder (SAD) is a crippling psychiatric disorder characterized by intense fear or anxiety in social situations and their avoidance....
Consciousness is supported by near-critical slow cortical electrodynamics.
Proc Natl Acad Sci U S A February 1, 2022 Daniel Toker, Ioannis Pappas, Janna D. Lendner et al. 148 citations
Mounting evidence suggests that during conscious states, the electrodynamics of the cortex are poised near a critical point or phase transition and that this near-critical behavior supports the vast flow of information through cortical networks during conscious states. Here, we empirically identify a mathematically specific critical point near which waking cortical oscillatory dynamics operate,...
A little history goes a long way toward understanding why we study consciousness the way we do today.
Proc Natl Acad Sci U S A March 13, 2020
A little history goes a long way toward understanding why we study consciousness the way we do today.
Effective connectivity changes in LSD-induced altered states of consciousness in humans.
Proc Natl Acad Sci U S A January 28, 2019 Katrin H. Preller, Adeel Razi, Peter Zeidman et al. 303 citations
Psychedelics exert unique effects on human consciousness. The thalamic filter model suggests that core effects of psychedelics may result from gating deficits, based on a disintegration of information processing within cortico-striato-thalamo-cortical (CSTC) feedback loops. To test this hypothesis, we characterized changes in directed (effective) connectivity between selected CTSC regions after...
Neural correlates of the LSD experience revealed by multimodal neuroimaging.
Proc Natl Acad Sci U S A April 11, 2016 Robin Carhart-Harris, Suresh Muthukumaraswamy, Leor Roseman et al. 887 citations
Lysergic acid diethylamide (LSD) is the prototypical psychedelic drug, but its effects on the human brain have never been studied before with modern neuroimaging. Here, three complementary neuroimaging techniques: arterial spin labeling (ASL), blood oxygen level-dependent (BOLD) measures, and magnetoencephalography (MEG), implemented during resting state conditions, revealed marked changes in...
Consciousness of subjective time in the brain.
Proc Natl Acad Sci U S A December 6, 2010
Consciousness of subjective time in the brain.
Consciousness of the first order in blindsight.
Proc Natl Acad Sci U S A November 15, 2010
Consciousness of the first order in blindsight.
Relative blindsight in normal observers and the neural correlate of visual consciousness.
Proc Natl Acad Sci U S A November 21, 2006
Relative blindsight in normal observers and the neural correlate of visual consciousness.
Naturalizing consciousness: a theoretical framework.
Proc Natl Acad Sci U S A April 17, 2003
Naturalizing consciousness: a theoretical framework.
Selective labeling of serotonin receptors by d-[3H]lysergic acid diethylamide in calf caudate.
Proc Natl Acad Sci U S A December 1, 1978
Selective labeling of serotonin receptors by d-[3H]lysergic acid diethylamide in calf caudate.
Psychedelic drugs: steric factors that predict psychotropic activity.
Proc Natl Acad Sci U S A May 1, 1968 S H Snyder, E Richelson 51 citations
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
SOME MECHANISMS OF CONSCIOUSNESS DISCOVERED DURING ELECTRICAL STIMULATION OF THE BRAIN.
Proc Natl Acad Sci U S A February 1, 1958
SOME MECHANISMS OF CONSCIOUSNESS DISCOVERED DURING ELECTRICAL STIMULATION OF THE BRAIN.