Neuroscience research suggests that scientists may have been undervaluing the most ancient regions of the human brain when studying consciousness. Evidence indicates that the subcortex and cerebellum may play a more significant role than previously thought, and could even be sufficient for basic forms of consciousness.
Human high-order thalamic nuclei gate conscious perception through the thalamofrontal loop
Researchers investigated the neural basis of conscious perception using intracranial recordings in humans. They discovered that the intralaminar and medial thalamic nuclei (imTha) exhibit early and strong activity linked to consciousness, acting as a “gate” that drives information to the prefrontal cortex. This supports the idea that the thalamofrontal loop is essential for visual awareness and provides direct evidence for the thalamus’s role in the rapid emergence of conscious experience.
Researchers investigated the neural basis of conscious perception using intracranial recordings in humans. They discovered that the intralaminar and medial thalamic nuclei (imTha) exhibit early and strong activity linked to consciousness, acting as a “gate” that drives information to the prefrontal cortex. This supports the idea that the thalamofrontal loop is essential for visual awareness and provides direct evidence for the thalamus’s role in the rapid emergence of conscious experience.
A new study published in Science has identified the thalamus as a central player in how humans become consciously aware of visual information. Researchers discovered that specific thalamic regions activate earlier and more strongly during moments of visual awareness, suggesting they act as a gateway for conscious perception.
A new study suggests the thalamus plays a key role in regulating conscious perception, acting as a gateway between sensory signals and the cerebral cortex. Researchers used data from patients with pre-existing electrodes to observe brain activity during visual perception tasks.
A study published in Nature Human Behavior reveals that general anesthesia suppresses unique functional connectivity patterns in the brain, making it difficult to distinguish individuals based on their neural activity. This effect is strongest in uniquely human brain regions and has implications for understanding and potentially aiding consciousness recovery.
The article explores the concept of consciousness, arguing for a reductionist approach by Alan J. McComas. It discusses how consciousness is a function of the brain, with neural activities often preceding awareness. The piece also examines the role of large language models in chatbots, highlighting potential manipulative techniques and the need for vigilance in interactions. Additionally, it addresses the integration of AI in research and evolving journal standards.
New study on mice decision-making reveals that choice is not a singular moment but a reflection of the brain’s preexisting state.
The research, using Buridan’s Assay, suggests that the mice’s brain constantly broadcasts its goal, even before options are available, with patterns of neuron activity predicting choice.
Hunger and thirst don’t directly drive behavior; instead, they modulate the brain’s goal-setting, with an element of randomness causing switches between needs, ensuring both are met over tim
The research, using Buridan’s Assay, suggests that the mice’s brain constantly broadcasts its goal, even before options are available, with patterns of neuron activity predicting choice.
Hunger and thirst don’t directly drive behavior; instead, they modulate the brain’s goal-setting, with an element of randomness causing switches between needs, ensuring both are met over tim
consciousness relates to a dynamic process of self-sustained, coordinated brain-scale activity assisting the tuning to a constantly evolving environment, rather than in static descriptions of brain function (3–5). In that respect, neural signals combine, dissolve, reconfigure, and recombine over time, allowing perception, emotion, and cognition to happen (6).
