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http://dx.doi.org/10.1037/13721-008
The lower segment of the parietal lobe, that is the inferior parietal lobule, is anatomically connected with the posterior part of the temporal convolutions, and so is its function. The struggle of different species of animals for existence would expose, especially the weak, to continual danger. The knowledge of past dangers would make them cautious, and also cause them to fear their enemy. Hence they use their intellectual powers in conjunction with the emotion of fear and keep a lookout. Thus do they develop foresight. This brain area—especially the supra-marginal and angular gyri, underlying the parietal eminence—is most developed in those animals and those men that are timid, apprehensive, and disposed to take every precaution, to prevent future trouble and danger. The emotion of fear has its object in nature to make the animal withdraw itself from danger. This must happen automatically or else it is useless. (PsycINFO Database Record (c) 2016 APA, all rights reserved)