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Optimizing Brain Fitness Flashcards

0
Q

What part of the brain is used for sequencing things, foreseeing consequences, executive control, drive, conscious thinking?

A

Frontal lobes

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1
Q

What is the most important mental operation of the human brain?

A

Working memory

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2
Q

What type of processing is used for things we do without being aware of them?

A

automatic processing

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3
Q

According to Alfred North, how does civilization advance?

A

By extending the number of things we can do without thinking about them

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4
Q

What causes us to shift from automatic to controlled processing?

A

Something unexpected or having to teach something to someone else

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5
Q

What happens if we rely too much on automatic processing?

A

Impulsive behavior

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6
Q

What type of processing is conscious thinking?

A

Controlled processing

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7
Q

What happens if we rely too much on controlled processing?

A

Paralysis, inability to make decisions

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8
Q

What are the 3 lobes where automatic processing occurs?

A

Occipital, parietal, & temporal

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9
Q

What are the 2 parts of the brain where controlled processing takes place?

A

Prefrontal & frontal lobe

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10
Q

How are brain cell connections like cell phone connections?

A
  1. Connected but not physically

2 signals can be strong or weak

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11
Q

What does entanglement mean?

A

Neurons & branches are tightly entangled with each other

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12
Q

What are the 2 stages of message transmission?

A
  1. Electrical

2. Chemical

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13
Q

What type of processing do the occipital, parietal, and temporal lobes do?

A

Automatic processing

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14
Q

What type of processing do the frontal and prefrontal lobes do?

A

Controlled processing

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15
Q

Where does electrical transmission occur?

A

Along length of axon

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16
Q

Where does chemical transmission occur?

A

In synapse

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17
Q

What are synapses?

A

The space between neurons

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18
Q

What are neurotransmitters?

A

Chemicals that carry messages across synapses

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19
Q

What happens in chemical transmission?

A

Neurotransmitters carry messages across synapses where they connect to receptors on the membrane of the dendrite of the next cell

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20
Q

Why are receptors called dynamic?

A

They can increase or decrease very rapidly.

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21
Q

What do receptors have to do with addiction?

A

Addiction happens when receptors greatly increase in number & call out for more chemicals

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22
Q

How long does it take for neurotransmitters to cross synapses?

A

1/1000 of a second

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23
Q

What does structural imaging show?

A

The locations where things are happening

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24
What type of tests are used for structural imaging?
CAT Scans, MRI
25
What does processing imagery show?
Electrochemical activity
26
What kind of tests are used for process imaging?
Functional MRI, PET
27
At what age does the brain achieve the maximum # of brain cells?
3-6 months
28
What percent of infant synapses are lost by adulthood?
40%
29
How many more synapses do animals in enriched environments have?
25%
30
At what age does individualization peak?
Age 3
31
At what age does concrete reasoning start?
age 7
32
At what age do hormones influence the brain heavily?
Age 11-12
33
At what age do abstract reasoning & judgement start?
Age 15
34
What is the cerebral cortex?
Outer part of the brain
35
What type of cells outnumber neurons 6-1?
Glial cells
36
What are basal ganglia?
Islands of grey matter suspended in white matter
37
What type of behavior is the basal ganglia involved with?
Automatic
38
What is neurogenisis?
Creation of new nerve cells
39
What encourages neurogenisis?
Enriched environment
40
What 4 things inhibit neurogenisis?
Depression Stress Sleep deprivation Anxiety
41
What is grey matter?
Brain cells
42
What is white matter?
Connections
43
How many more words will a child of a talkative mom know by age 20 months?
130
44
How many more words will a child of a talkative mom know by age 2?
300
45
What age do musicians need to start training by to have perfect pitch?
7
46
What age do students need to speak a language's phonemes by to speak without an accent?
Puberty
47
As we age, which increases, brain cells or connections?
Connections
48
As we age, which decreases, brain cells or connections?
Brain cells
49
What are 6 actions that can increase intelligence?
1. Solving math problems 2. Interpreting literature 3. Finding on the spot solutions 4. Assimilating science 5. Practicing wisdom 6. Seek challenging environment
50
What are 4 examples of plasticity in the brain?
1. Neurogenisis 2. Increases in efficiency 3. Remapping of functional connections 4. Alternative circuits
51
What are 4 things studies with rats suggest could cause us to grow up smarter?
1. More challenges 2. More opportunities for sensory stimulation 3. More physical exercise 4. More socialization
52
What are oligodendrocytes?
Type of glial cell that produce myelin to insulate axons.
53
What changes does working on a skill produce in the brain?
Repeated firing of circuits stimulates oligodendrocytes to produce more myelin along axons being fired. More myelin increases the speed of transmission.
54
What is the simulation hypothesis?
Use of motor memory to interpret what someone else is doing. For something one knows well, seeing someone else do it causes the same neurons to be activated as if you are the one doing it.
55
What 5 changes in our thinking patterns is technology causing?
More: 1. Scanning 2. Skimming 3. Idea shopping 4. Browsing 5. Multitasking
56
What are harmful cognitive effects of obesity?
1. Diets high in saturated fats lead to underperformance on memory tests 2. High cholesterol & obesity are risk factors for Alzheimer's
57
How are obesity & addiction linked?
High fat/calorie diet decreases responsiveness of pleasure centers
58
What are free radicals?
Molecular fragments with 1 unpaired electron
59
How do free radicals damage the body?
They attract electrons from body tissues, destroying the cell membranes. This partially causes aging.
60
What can protect the body from free radicals?
Antioxidants
61
How much less do we sleep than a generation ago?
45 minutes
62
What are sleep spindles?
Brief bursts of electrical activity in regions of new memory formation.
63
What are 4 benefits of naps?
1. Finger dexterity increases 16% 2. Creativity & learning are improved 3. Increase offline learning 4. Increase sleep spindles
64
What are 3 tips for napping?
1. Must be short - ex. 20 min 2. don't force it 3. Set aside 20 mins on a regular schedule & just try to relax. Eventually brain will figure out this is a time to shut down.
65
What are 7 ways the brain benefits from exercise?
1. Increased blood flow around neurons 2. Neurogenesis 3. Connections between neurons 4. Protection of dopamine neurons from neurotoxins 5. Elevations of nerve growth factors 6. Affects prefrontal executive practices 7. Positive balance of neurotransmitters
66
How much does a daily walk of 1 mile reduce the risk of Alzheimer's?
50%
67
What 3 lobes benefit the most from exercise?
Parietal, frontal, & occipital
68
What do frontal & parietal lobes focus our attention on?
What we are thinking about
69
What do parietal & temporal lobes focus our attention on?
What we are doing
70
How many miles of walking a week has been shown to maintain brain volume?
6-9 miles
71
How are brains of fitter children different?
Larger basal ganglia
72
What is a larger basal ganglia Important for?
Attention and executive control

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