The seven books of Paulus Ægineta, volume 1 (of 3)

by Aegineta Paulus

SECT. LXIII.—THE MARKS OF THE TEMPERAMENT OF THE BRAIN.

A brain of the proper temperament has its vital energies and excretions moderate, and is not liable to be affected by any externals. Such persons, when infants, have the hair of their head somewhat tawny—when boys, yellowish—and when adults, a bright yellow; being also intermediate between the curly and the straight, and they do not readily fall out. When the temperament is hotter than moderate, all the parts about the head are hotter and redder, the veins in their eyes are perceptible, their hair is grown at birth; and if much hotter, it is black, strong, and curly; but if not much, it is yellowish at first, and then grows black, and in more advanced life such persons become bald; their excretions are small when they enjoy good health; their head becomes filled and oppressed by heating food, drink, and odours, or by any external casualties. Such temperaments are satisfied with little sleep, and even that is generally not profound. The following are the marks of a brain which is colder than proper: The excretions are excessive; the hairs are straight, yellow, and durable; and it is hurt readily by cold things. Such persons are constantly seized with catarrhs and defluxions, the veins of their eyes are not visible, and they are much given to drowsiness. The following are the marks of a brain which is drier than natural: In the excretions nothing redundant, the senses acute, not being given to drowsiness, the hair strong and soon formed, rather curly, and soon falling out. In the more humid temperament, the hairs are straight, do not readily drop out; the senses are muddy, and the excretions redundant, sleep long and profound. In the compound of the hot and dry, the excretions of the head are small, the senses acute, there is a disposition to watchfulness, and baldness. Their hair at first is formed quickly and abundantly, is of a black colour, hot to the touch, and they are ruddy until manhood. But if moisture be joined to heat, and they are not immoderate, the colour and heat are good, and the veins of the eyes large. The excretions are plenteous and moderately concocted. The hair is straight and yellowish, and does not readily drop out. The head is easily filled and oppressed by heating and moistening things. But should an increase of humidity and heat take place, the head becomes diseased, and easily affected by heating and diluent things. Such persons cannot endure long watchfulness, but their sleep is disturbed by fantastical dreams, their sight is dim, and their senses not distinct. The cold and dry temperaments of the brain conjoined together render the head cold and pale, the veins of their eyes do not appear, and they are readily hurt by cold things: wherefore, their health is precarious. Their senses in youth are distinct and faultless, but as they advance in life soon decay. In a word, as far as regards the head, they experience a premature old age; their hair after birth is of slow growth, stunted, and tawny. The humid and cold temperaments of the brain render those affected with them prone to lethargy and drowsiness; their senses are bad; they abound with recrementitious humours; are easily affected with cold and fulness of the head; and are liable to catarrhs and defluxions; but such persons do not readily become bald.

Commentary. This is taken from Oribasius (Synops. v, 46), who abridges Galen. (Ars Med.)

As our author’s description of the temperaments is sufficiently intelligible, and the others, whether Greeks or Arabians, deliver exactly the same views of the subject, without any material improvement, we consider it unnecessary to multiply references to, and extracts from them, on the present occasion; and, therefore, instead of crowding our pages with superfluous repetitions, we shall give in this, and the five following Sections, a brief exposition of the physiological doctrines of the ancients, with regard to the principal organs of the human body:

The ancients divided the powers or faculties of the human body into the Natural, the Vital, and the Animal. The brain they held to be the seat of the animal powers—that is to say, they considered it to be the organ from which sensation and motion are derived, and these, they maintained, are the powers by which animals are distinguished from vegetables. This doctrine is fully explained by Galen, in his work, ‘De Facultatibus Naturalibus,’ and by several of the Arabian authors, among whom we will venture to mention Haly Abbas, as being particularly worthy of being consulted on this subject. The brain, then, was accounted the seat of the five external senses, and of muscular motion, which also was reckoned as one of the senses by Hippocrates. (De Insomniis, c. 1.) Galen and his followers decidedly taught that the nerves of the senses are distinct from those which impart the power of motion, that the former derive their origin from the anterior part of the brain or cerebrum, and the latter from the posterior, called by the Greeks encephalis (under this term they comprehended the cerebellum, tuber annulare, and medulla oblongata of modern anatomists), or from its process, the spinal cord. They maintained that the nerves of the finer senses are formed of matter too soft to be the vehicles of muscular motion; whereas, on the other hand, the nerves of motion are too hard to be susceptible of fine sensibility. See Galen (de Usu Partium, ix; de Administ. Anat. vii); Haly Abbas (Theor. iv); Averrhoes (Collig. iii, 33); Avenzoar (ii, 7); and Rhases (Contin. i.)

The ancients were also of opinion that the brain is the coldest viscus in the animal frame, being in this respect the antagonist of the heart, the heat of which they supposed that it counteracts. See Aristot. (De Part. Anim. ii, 7); and Pliny (Hist. Nat. xi, 49.) There appears to be some foundation for this opinion, since, as is remarked by Haly Abbas, those parts of the body which are vascular, and contain much blood, are naturally hot; whereas such as contain little blood are comparatively cold. Of this latter class are the brain, nerves, and fat. (Theor. i.)

The later Greek authorities, as, for example, Theophilus Protospatharius and Nemesius, adopt a division of the brain as regards its connexion with mind, to which Galen and his immediate followers appear to have been strangers. According to it, Fantasy is connected with the anterior part of the brain; Cogitation, or the discursus mentis, with the middle; and Memory with the posterior. See, in particular, Theophilus (p. 184, ed. Greenhill.) This hypothesis was received by all the Arabian writers on medicine. See, for example, Averrhoes (Collig. ii, 20.) It was evidently an approach to the arrangement adopted by the phrenologists of the present day, who maintain that intellect is seated in the anterior part of the brain; the moral feelings in the middle; and the animal appetites in the posterior.