A new study by the Indiana University suggests “human-like” ways of thinking may have evolved 1.8 mya. This conclusion was reached, “By using highly advanced brain imaging technology to observe modern humans crafting ancient tools…”
Interestingly, the researchers in this study have concluded that the appearance of this human-like cognition emerged with HOMO ERECTUS! Homo erectus was an adventurer and explorer. The OOA theory identifies this species as being the first to migrate out of Africa and spread across the rest of the planet (except the Americas of course). This ancient human ancestor was intelligent and developed new ways of doing things including the production and use of new stone tools known as the Acheulean Stone Tool industry! This development replaced the archaic Oldowan tools which were very crude and this change is also attributed to Homo erectus! Further, most researchers believe this species of HUMAN was also the first to make and use fire and they may have cooked their food too.
“This is a significant result because it’s commonly thought our most modern forms of cognition only appeared very recently in terms of human evolutionary history,” said Shelby S. Putt, a postdoctoral researcher with The Stone Age Institute at Indiana University, who is first author on the study. “But these results suggest the transition from apelike to humanlike ways of thinking and behaving arose surprisingly early.”
And this doesn’t surprise me at all because I do NOT believe our ancient human ancestors were idiot savage APEMEN!
The study’s conclusions are based upon brain activity in modern individuals taught to create two types of ancient tools: simple Oldowan-era “flake tools” — little more than broken rocks with a jagged edge — and more complicated Acheulian-era hand axes, which resemble a large arrowhead. Both are formed by smashing rocks together using a process known as “flintknapping.”
The researchers in this study conclude that more advanced forms of cognition were needed to develop Acheulean Stone Tools such as hand axes but this higher cognition was not necessary for the production of the more primitive and crude Oldowan stone tools mainly used by H. habilis. This research pushed the date far back to 1.8 mya for the development of such human-like cognition need to make the more sophisticated Acheulean stone tools. And here is something very interesting………
“Strikingly, these parts of the brain are the same areas engaged in modern activities like playing the piano.”
I think that is fantastic! This study just supports my theories about H. erectus even more!