The present slide describes what is synapses and how it originates in neurons in the brain. The genesis of synapses is described.

1. B Y
D R . S . J E R S L I N
SYNAPSE GENISIS

2. Definition
 The word can definitely be long and intimidating(frighten to
say something), but let's break it down into more manageable
pieces.
 The two root words are synapse and genesis. Synapses are
connections between nerve cells, and genesis means the
beginning or start of something. The combination of
synapse and genesis becomes the creation of connections
between nerve cells in the brain, or neurons.
 This occurs in all animals with a brain, but is particularly
pronounced(definitely told) in humans. Although
synaptogenesis happens to some degree throughout a human's
lifetime, there are periods where it happens much faster than
others.

3. Con…
 This occurs in all animals with a brain, but is particularly
pronounced(definitely told) in humans. Although
synaptogenesis happens to some degree throughout a
human's lifetime, there are periods where it happens much
faster than others.

4. Brain Growth Lessons
 When it comes to brains, bigger isn't always better. Albert
Einstein had a brain that was perfectly normal as far as
size goes, but his thoughts produced one of most
astounding scientific breakthroughs of the 20th century.
As far as we can tell, intelligence comes from the
number of connections between brain cells, not the
number of brain cells themselves.

5. Con…
 At about week 12 of a pregnancy, a human fetus starts
to undergo a tremendous growth in the number of
synapses in the brain. This period is known
as exuberant synaptogenesis and lasts roughly until
eight or nine months after birth. The number of
synapses that are created in this time is mostly determined
by the genetics of the individual.

6. Growth in Later Life
 Brain researchers have also found a second period of
rapid synaptogenesis in humans: adolescence. It's not
as dramatic as exuberant synaptogenesis, but there are
many more synapses being created at this time than there
are later in life.
 Does this mean that intelligence is determined only by our
nature? If there is a trauma in this period, is intelligence
impacted negatively? It turns out that these rather logical
assumptions are false.

7. Con…
 Genetics plays a large role in synapse creation, but
the environment plays a bigger role in which
synapses are kept. This is part of the plasticity of the
brain - its ability to change in response to different
external and internal stimuli.
 For example, human babies are born with the ability to
learn any of the 6,000 or so languages currently spoken
on our planet, or in the case of some twins, invent new
languages. However, most people will only ever use one
or two languages fluently. Where does the potential for
the other languages go?