Sentences with phrase «dramatic brain size»

Not exact matches

Arnold Kriegstein, a neuroscientist at the University of California, San Francisco, also argues that though the scientists found inhibitory interneurons strikingly depleted in the brains of the oxygen - deprived piglets, this alone can not account for the dramatic shrinking of the animals» overall brain size and the diminished number of cortical folds «The interneurons are part of the story but not the entire story of how the brain is affected by this kind of [lack of oxygen].»

Aiello and Wheeler noted that this dramatic increase in brain size would seem to have required a dramatic increase in metabolism — the same way that adding an air - conditioning system to a house would increase the electricity bill.

Evidence from fossil hippopotamuses also shows such dramatic reductions in brain size in mammals are possible.

Such dramatic effects on brain size and function are unlikely in human carriers of BRCA1 mutations, the authors of the study note, but they propose the findings could shed light on the gene's role in brain evolution.

Not only was there a dramatic increase in brain size, but also in life history (shortened inter-birth intervals, delayed development), body size, shoulder morphology allowing throwing of projectiles [45], ecological flexibility [46] and social behaviour [47].