In the Driver's Seat: Sexual Orientation
Although opinions differ as to what determines sexual orientation, most scientists believe that for males it is primarily inborn. Simon LeVay, for example found a cluster of nerve cells in the hypothalamus that is larger in heterosexual males than...
Stressed to the Limit: Physiology of Stress, The
The field of psychoneuroimmunology seeks to understand the interaction between the immune system and the central nervous system. Most stress research is focused on the fight-fight reaction, and more recently threats to the social self. The autonomic...
Connections: Role of the Thalamas, The
Except for olfaction, input signals traveling along sensory pathways are routed through relay areas in the thalamus. Beyond serving as a way station, the role of the thalamus is a source of debate. Parts of the thalamus are thought to be involved in...