Consciousness
Sleep Stages and Theories
Sleep disorders and Dreams
Sensation Basic Concepts
100

Provide the term: Processing multiple aspects of a stimulus at the same time. 

Parallel Processing 

100

What are the four stages of sleep? 

Non-REM 1

Non-REM 2

Non-REM 3

REM- RAPID EYE MOVEMENT 

100

Provide two ways that sleep loss affects us 

Possible Answers: 

-Irritability 

-Poor concentration 

-Poor memory 

-Depression 

-Obesity 

-Suppressed immune system 

-Slowed reaction time 

100

Provide the terms for the following examples:  You may not notice a fan's noice until it is turned off. You put on a watch in the morning and immediately feel it against your wrist. After wearing it for several hours, you completely forget it's there. You jump into a swimming pool, and the water initially feels extremely cold. After remaining in the water for several minutes, it doesn't feel quite as cold anymore. 

Sensory Adaptation 

200

Provide the term: Processing one spect of a problem at a time, requiring your conscious attention and working memory. For example, when you first learn how to ride a bike, focusing on peddling each foot or learning a language and thinking carefully about grammar rules before speaking, or learning an instrument and consciously remembering what to do with your fingers. 

sequential processing 

200

Provide the term: Our natural biological 24 hour cycle of wake and sleep. This natural cycle can be affected by our work schedule, mental health, and other variables.  

Circadian Rhythm 

200

Provide and define two sleep disorders

Insomnia: Recurring problems in falling or staying asleep

Narcolepsy: Sudden uncontrollable sleep

Sleep Apnea: Repeated stopping of breathing while asleep 

200

Compare absolute threshold to difference threshold 

Absolute threshold is the minimum sensory stimulation possible to be detected 50% of the time

Difference threshold is the minimum difference in two stimuli that we can detect 50% of the time. (Just noticeable difference) 

300

Provide the term: The mind processes information on two tracks- one conscious, and the other unconscious

Dual Processing 

300

Provide two important functions of sleep

Possible answers: 

Restoration: allows for neural connections to repair themselves,  cleans the brain of waste

Memory Consolidation: Sleep reactivates recent experiences and helps to retain those memories 

Protection: Keeps us hidden and safe 

Creativity: Helps with making creative insights and connections- Dreams can be a source of inspiration 

Growth- During sleep, the pituitary glad releases human growth hormone 

Conserve Energy- Slows down metabolism to preserve energy for waking hours 


300

Provide and define one of the theories of dreaming  


Information Processing/Consolidation: Dreams help us consolidate our memories by sorting through the day's events 

Physiological function: Dreams help develop and preserve neural pathways 

Activation synthesis: REM sleep triggers neural activity that produce random visual memories 

Cognitive development: Dreams illustrate a persons knowledge and understanding, simulating our lives. 

300
Transduction is the transformation of one form of energy into another.  Provide an example of how transduction works in one of the senses that we learned about.  

Possible answers 

Hearing: Sound waves cause tiny hair cells in the cochlea to bend, converting vibrations into neural signals that send sensory neurons through the auditory nerve to the temporal lobes of the brain

Sight: Light waves enters the eye and reach the retina, where rods and cones convert light energy into sensory neurons  that travel through the optic nerve to the occipital lobes of the brain.

Touch: Pressure, temperature, and pain stimulate sensory receptors in the skin, which convert these sensations into sensory neurons that travel to the parietal lobes 

Taste: Chemicals from food dissolve in saliva and stimulate taste receptor cells in taste buds, which convert the chemical stimulation into sensory neurons that travel to the frontal lobes/parietal lobes.

Smell: Odor molecules enter the nose and stimulate olfactory receptor cells, which convert the chemical stimulation into sensory neurons that travel to the olfactory bulb in the brain through the olfactory nerve.

Balance: Movement of fluid inside the semicircular canals of the inner ear bends tiny hair cells, converting movement into sensory neurons that travel to the cerebellum in the brain and help us maintain balance.

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