Species Differences

The developmental stages outlined previously for the brain proceed in a sequential manner in all species studied. Regarding the physical development of the mammalian brain, one major difference between species is the timing of birth in relation to the time of brain growth spurt. In some animals, brain growth spurt occurs prenatally (guinea pig, sheep, and monkey), in some it occurs perinatally (human and pig), and in others it occurs postnatally (rat and mouse) (Fig. 4). Accordingly, these animals are called prenatal, perinatal, and postnatal brain developers, respectively. Thus, the event of birth in mammals, although representing a major physiological milestone in the development of the respiratory and cardiovascular structures and functions, is apparently of little significance to the development of the brain and behavior.

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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