Chapter 3 Flashcards
amount of Americans with emotional disorder
about half
Percent of those that receive treatment
one third
Percent of mental disorder recovery
80-90%
Neuropsychiatry
the study of the brain and mind
Most complex organ
brain
Neurons
nerve cells, transmit information from the senses to the brain and brain to body
Parts of neurons
- Cell body
- Axon terminal
- Dendrites
Nucleus
central part of a cell, in cell body
Axon
long fiber that conducts impulses from nuckeus to dendrites
Axon Terminal
ending of axon, impulses transmitted to a dendrite of other neuron
Dendrites
Branching fibers of neuron that receive impulses from axon terminals and other neurons, conduct them to nuclues
Glia
support cells for neurons in the brain and spinal cord that seperate brain from bloodstream, help in neuron growth
Neurotransmitters
chemicals released by neurons that stimulate or inhibit action of other neurons
Synapse
specialized site at which electrical impulses are transmitted from the axon terminal of one neuron to a dendrite of another
Women’s brains are ____% smaller
10-15%
- more densely packed with neurons
- use more of them
Genders respond diff to emotion, especially ___
sadness, activates neurons in area 8x larger in women
Greatest gender differences
at both top and bottom of scale
Brain is still a work in progress until
age 25
Surge of synapse in
before adolescence
After surge in tweens
prune nonessential connections
In adequate pruning can contribute to
mental disorders
Brain area for organizing fully develop at age ___
20
Before 20, rely on _____ for daily life
amygdala
Amygdala
- almond shaped
- in medial/temporal lobes
- process emotions and memories
Frontal cortex
- governs reason and forethought
- greater role as age
- puts challenges into perspective
Mental Disorder
a behavioral or psychological syndrome associated with distress or disability
Psychiatric illness and substance abuse affect ____ world wide
450 Million
Most common psychiatric conditions
- Depression
- alcohol dependence/abuse
- bipolar disorder
- schizophrenia
- Alzheimer’s/dementia
- panic disorder
- drug dependence/abuse
What is the leading cause of years of health lost to disease?
depression
Women are ____% higher for depression
50%
Men rates of alcohol and substance abuse are ___x higher than women
7x
___% undergrads have depression
10%
Undergrads who live ____ more likely to have depression
off-campus
Transfer students have higher
anxiety
Ratio of undergrads diagnosed/treated for mental disorder
1 in 4