Scientists Discover Neural Critical State in Brain
In a groundbreaking study published in Nature Communications, researchers have presented compelling evidence supporting the “Hypotheses of the Critical Brain” using a project called Dishbrain. The research was conducted by scientists from Cortical Labs and the University of Melbourne.
The researchers utilized Dishbrain, a collection of 800,000 human neural cells trained in the game Pong, to demonstrate that brain activity can exist in a delicate state where even the smallest effects can trigger “avalanches” of brain activity. This state, known as a “neural critical” state, lies between epilepsy and a coma.
Dr. Brett Kagan, the chief supervisor of the Cortical Labs biotechnological startup, expressed astonishment at the results, stating that they greatly exceeded scientists’ expectations. He emphasized that the critical state in the neural network only occurs when a task is performed, rather than in the absence of incentives. However, for neural network training, criticality alone is inadequate; feedback is essential to provide the network with additional information concerning the consequences of its actions.
This project offers a promising avenue for studying the mysteries of the human brain without the use of animals, which had previously posed challenges. Dr. Phostor Khabibollahi, a researcher at Cortical Labs, expressed enthusiasm for the opportunity to explore various questions using Dishbrain.
Furthermore, this study has the potential to shed light on the treatment of various brain diseases, ranging from epilepsy to dementia. Dr. Chris French, author of the article and head of the neurodynamic laboratory at the University of Melbourne, believes that the study with Dishbrain will play a crucial role in the diagnosis and treatment of numerous neurological conditions.
In addition, this approach could contribute to advancements in brain-computer interfaces that help restore lost functions due to neural damage.
Concluding the study, Dr. Kagan emphasized that the field of biological modeling of the brain is just beginning to develop but is already paving the way for groundbreaking scientific research.