Walker, Chapter 6 (106-132)

Consolidation

Consolidation

________: protecting newly acquired info from forgetting, aided by sleep.

automate movement

Sleep helped the brain ________ routines.

Hippocampus stores fact

________- based knowledge and has a limited storage capacity.

Early night sleep

________ (deep nrem) provides superior memory retention savings.

Sleep spindles

________: short, powerful bursts of electrical activity.

Sleep

________ restores the brains capacity for learning by making room for new memories.

sleep spindles

short, powerful bursts of electrical activity

consolidation

protecting newly acquired info from forgetting, aided by sleep

sleep stimulation

inserting small amounts of electrical voltage

Does sleep help with memory?

Yes

hippocampus

part of brain that stores fact-based knowledge. has a limited storage capacity

How does sleep restore the brain's capacity for learning?

By making room for new memories during stage 2 nrem sleep

What is the relationship between sleep spindles and learning restoration?

positive relationship: The more sleep spindles obtained during a sleep, the greater the restoration of learning

Where are fact-based memories stored?

the hippocampus

Where are long-term memories stored?

cortex

True or false: people 60-80 years old generate more sleep spindles.

False

When is the concentration of nrem sleep spindles the greatest?

In the late morning hours, sandwiched between long periods of rem sleep

How does sleep help you forget?

While you sleep, your brain actively avoids strengthening memories made to be forgotten.

consciousness

Awareness of yourself and your environment

circadian rhythm

a daily cycle of activity observed in many living organisms

sleep deficit effects on body

-Weakened immune system -Increased level of stress -Damage to brain cells responsible for learning / memory -Hypertension -Impaired concentration -Irritability -Suppression of cancer-fighting immune cells premature aging

melatonin

hormone that regulates the sleep cycle

encoding

getting information into the memory system

storage

retaining information in memory over time

retrieval

getting information out of memory storage

rehearsal

the more time you spend rehearsing information, the more effective your memory will be