Chapter 3: Discovering Who’s Directing Your Life 41
Figure 3-1:
Finding your
way around
the human
brain.
Smell pathway
Touch, pain,
temperature,
sense of position
pathways
Taste pathway
Thalamus
Amygdala
Hippocampus
Medial
lemniscus
Ventroposterior
lateral and medial
nucleus of thalamus
Prefrontal cortex
Somatosensory cortex
Hypothalamus
PTSD occurs when the amygdala receives input with a very high emotional
value, gets in a panic, and can’t send the information to the hippocampus.
Because of this, the traumatic event gets trapped within the amygdala and
the hippocampus is unable to present the memory to the neocortex for evalu-
ation, which means the brain can’t make sense of the event. Because the
amygdala is the organ primarily involved with your survival, in PTSD suffer-
ers it stays in a constant state of arousal, causing flashbacks and high levels
of anxiety.
Virginia Woolf wrote the novel Mrs Dalloway in the early 1920s and her
portrayal of Septimus Smith clearly identifies him as suffering from post-
traumatic stress after the horrors of World War I. Unfortunately, at the time,
conventional medicine was relatively inexperienced at dealing with psycho-
logical problems. Patients like Septimus Smith were advised to have plenty of
rest in order to recuperate and were given useless advice such as ‘pull your-
self together, man’.