"Intact brain" refers to a brain that is undamaged and fully functional. It means there are no injuries or illnesses that affect the person's thinking, learning, memory, or other cognitive abilities. Full definition
Nerve fibers sprouted vigorously from intact brains and ganglia, interconnecting nerve cultures, and adjacent cultures of the digestive tract, Glia, tracheal, and nerve cells were present in large numbers in the migratory zone surrounding the explants. (science.sciencemag.org)
In 2013, a team led by Gradinaru together with Karl Deisseroth of Stanford University in California reported a method that strips away fats and other molecules to make intact brain tissue transparent, allowing thick sections to be imaged with a light microscope (see «See - through brains clarify connections»). (scientificamerican.com)
Intact brains cleared with CLARITY - TDE are imaged with a custom - made light sheet microscope. (lens.unifi.it)