12. Our DNA is heavy on introverts!
INTJs
50% management teams; 90% of CEOs
13. Guess who the E in the bunch is?
Jay Hallberg, VP marketing & Co-founder (aka Vanilla Ice) - ENTP
14. Spiceworks an I-kind-of-Place.
Department E I
Development 17% 83%
Finance 0% 100%
HR 67% 33%
Marketing 50% 50%
Sales 87% 13%
Support 13% 88%
Testing 33% 67%
Total 41% 59%
17. What’s the Difference?
Extraversion
(70-75% of population)
Introversion
(25-30% of population)
Energized by what goes on in the
outer world
Energized by what goes on in the
inner world
Need to talk to clarify what they
think
Need to reflect before they talk
Can be seen as accessible and
understandable
Can be seen as subtle and difficult
to know well initially
Difficult for them to just sit &
listen
Work quietly without interruption
Often work to change the world Often work to understand the
world
Interests often have breadth Interests often have depth
Interaction Concentration
Sociability Territoriality
Multiplicity of relationships Limited relationships
Expenditure of energies Conservation of energies
19. Genetics predisposes us.
D4DR gene on chromosome 11 - linked to the neurotransmitter dopamine.
Controls excitement levels & is vital for motivation.
•E= gene is longer/less sensitive – so need to seek more thrill-seeking stimuli.
•I=gene is shorter/ more sensitive – receive ample stimulation w/quiet activities.
20. Introverts –naturally focused.
I brain > higher level of activity and thinking than the E brain due to long, slow pathway of
neurotransmitter called acetylcholine; E = shorter > less activity and seeks to compensate.
21. Extroverts –well rested & happy.
E brain > lower level of activity and thinking than the I brain due to show, fast pathway of
neurotransmitter called acetylcholine
22. What’s the Difference?
Extraversion
(70-75% of population)
Introversion
(25-30% of population)
Energized by what goes on in the
outer world
Energized by what goes on in the
inner world
Need to talk to clarify what they
think
Need to reflect before they talk
Can be seen as accessible and
understandable
Can be seen as subtle and difficult
to know well initially
Difficult for them to just sit &
listen
Work quietly without interruption
Often work to change the world Often work to understand the
world
Interests often have breadth Interests often have depth
Interaction Concentration
Sociability Territoriality
Multiplicity of relationships Limited relationships
Expenditure of energies Conservation of energies