1. How are the brain and olfactory bulb
The olfactory bulb is a part of the brain. It
has connections to many different parts of the
brain. Among these connections are the amygdala,
which is involved in emotion, and the
hypothalamus, which has functions such as
feeding that are critical to survival.
2. How does memory work?
Memory works in lots of ways! Whenever you are
able to do something or think something that you
did or thought before, you are remembering it.
One important aspect of memory is retrieval,
which is the process of bringing a memory out of
long-term storage in order to actively think
about it. Retrieval depends on cues, which can
come in a lot of forms. Sometimes it's easier to
remember something if you're in the same room as
you were when you first experienced it. Smell
can be a powerful cue that can help people
3. How much of the information one learns is
remembered for the average person?
This depends on the task. If people have good
strategies for memorization then they can
remember a lot of things. Without a strategy,
however, people are more limited. For example,
if you give someone a list of words they will do
a good job at remembering the first few words on
the list (this is called the primacy effect), do
poorly in the middle, and then do a good job at
remembering the last few words on the list
before you tell them to repeat it back (this is
called the recency effect).
4. Are smells remembered?
Yes. It can be hard to remember a smell just by
thinking about it, but smells often trigger
5. Can perfumes be linked to memories?
6. How does the brain store memories?
This depends on the type of memory. For the type
of memory that we're conscious of, such as facts
and events, the brain uses the hippocampus. The
hippocampus is initially activated while
something new is being learned. It is also
activated when recently learned information is
being retrieved. The hippocampus helps
communicate with the different parts of the
cortex involved in the memory. Over time the
hippocampus is required less and less to
retrieve memories that happened a long time
7. Where does the brain store memories?
Memories are stored all over the brain! There
are lots of different types of memory, such as
memory for events, memory for procedures, and
memory for a familiar face. These different
types of memory are stored in multiples
locations, and often require that different
parts of the brain communicate with each other
to recall the memory. The brain is one big
network, and for something as complex as memory
it requires a lot of communication between its
8. Are there certain smells proven to trigger
Yes. Studies have used smells such as sunscreen,
chlorine, and cinnamon to trigger memories.
Smells seem to be especially useful for
triggering memories from early in life and
memories for emotional events.
9. What are some smells that have effects on
The brain is where you experience smell, so all
smells have effects on the brain!
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