The following cartoon accompanied the print article on “The Integrated Information Theory of Consciousness”, or ITT (Dr. H. Morch, Issue 121 Philosophy Now). To wit, “IIT is now one of the leading theories of consciousness in neuroscience” and is linked to the concept of integrated information, denoted by a mathematical quantity called Φ (‘phi’).
As per the article, “Systems with a low Φ have a small amount of consciousness – they only have very simple and rudimentary experiences. Systems with zero Φ are not conscious at all. [This implies that] IIT has radical implications. If IIT is true, we could in principle build a ‘consciousness-meter’ that tells us whether any system is conscious, and to what level: from comatose patients to infants; from simple animals and plants to robots and next generation AI.”
Check out the (radical theory!) article and Philosophy Now’s fantastic new website: https://philosophynow.org/issues/121/The_Integrated_Information_Theory_of_Consciousness
Also, see the following WIRED interview (and quote) with Christof Koch: https://www.wired.com/2013/11/christof-koch-panpsychism-consciousness/