2- Biology In Psychology Flashcards
Daily stressors
Everyday situations- drain us of mental health and opportunities to ignite positivity
Coping strategies
Susan folk man Richard Lazarus two groups:
Emotion-focused coping skills
problem focused-
Exam anxiety
Manifest. Brain puzzle/ deception. Has to be closely associated to it tho (“a good lie mixes in a bit of the truth”)
* get rid of the logical part of you or Brian that knows its final exam day and super imp? Like only way you could not have this on your mind is if you go on shrooms or something
Gratitude
alters our psyche.
Conjures up those thoughts always being pushed back to the back of our brains and gives us new perspectives that trigger all kinds of neurotransmitters and neural activity-> lots of good neural activity brings more appreciation/ strength in those good moments
Fraternal twins (Dizygotic)
Dizygotic- 2 SEPARATELY fertilized eggs, so REGULAR SIBLING genetic comparisons
Identical twins (Monozygotic)
Monozygotic= ONE zygote (fertilized egg) dividing into TWO
Twins (NVN)
They defy the nurture argument because they will be the same (nature) social person as the other despite different social circumstances.
BUTTT 2 randomly picked ppl of same AGE are bound to have similar traits and habits
Nervous system
Billions of cells in brain and body enable our think feel do
Basic functions :
1- receives sensory input (hear, see, smell, touch, taste) (PNS)
2- processes info in brain (focus, perceive, then remember it) (CNS)
3- acts on info (CNS)
We control, but it controls too
Neuron release neurotransmitters with electrochemical signals
Peripheral NS (PNS)
Nerve cells OUTSIDE brain and spinal cord (skin, muscle, organs, glands)
Gather the news report for the CNS and waits for instructions on next action
Has automatic and somatic NS
Central NS (CNS)
Nerve cells INSIDE brain and spinal cord
Gets news report and COMMANDS action, feeling, thought
Neurons/ nueral communication
Nerve cells that receive integrate info in NS.
communicate with LOTS of neurons
never randomly, only SELECTIVely- then from here, they FORM networks
Networks create complexity in your thoughts and behavior
Permanent functional connections in groups of neurons- where they now perform efficiently and in turn you do too (with maturation)
Selectiev process happens with BRAND NEW experiences (even if new, some will alr be strengthened so factors of staying- new and exciting) so it happened most at baby ages, but nowadays the networks are already formed and they are buddies for every emotion i go through
Dendrites
Short extension fo cell body
TRANSMIT and RECEIVE signals from close neurons (either inhibitory or excitatory chemicals from other neurons)
Cell body
Signals collected and combined (integrated) (from dendrites) here
Axon
Once incoming info is combined in cell body, electircal impulses are sent along AXONS (very long)
KW: electrical impulses
nerve
Bundle of AXONS ( so is axon)
Is messenger
Terminal buttons
At end of axons where the info is dropped off (terminal) to next nerve/ dendrite (into synaptic cleft first)
AKW: action potential causes release fo chemicals to communicate to other neurons
Synapse
Literally the open gap between neurons- communicate by RELEASING hopping chemicals at terminal buttons (NEUROTRANSMITTERS)
Autonomic NS (involuntary)
LITERALLY a part of PNS, but these nerves within it, specialize in FIXED communications/ reactions
Automatically Sends and receives signals to and from GLANDS and INTERNAL ORGANS
Nerves carry signals to CNS
MS: These give info about anxiety and fullness of tummy
Blood pressure, digestion, and respiration (out of our control)
Emotional (sweat glands)
Somatic NS
Sends and receives signals to and from SKIN, MUSCLES, and JOINTS
All messengers (peripheral)
Voluntary movements (tickling)
Receptors in skin send to brain to adjust how much muscle pressure to use with motor activities (set pattern in place- hippocampus)
Parasympathetic NS (Peripheral- autonomic)
Balances/ soothes PERIPHERAL NS/our whole body after sympathetic episode (to smallest degree)
Give signals from CNS to the organs and glands, then back again (autonomic system)
Works in pattern to always set in after sympathetic
* what if you’re just too panicked? Is it programmed to always kick in? Or is this where your cognition/ psyche kicks in to trip everything up?- NO
Chronic arousal is bad for heart
Brocas left hemisphere
Person with lesion in Broca’s area has difficulty SPEAKING
Broca’s area: small section on LEFT hemisphere specializing in language (they can still understand it- Tommy’s language)
KW: Proved that brain sections have specialized functions (lateralization)
Glands
Organ that secretes chemical substances for use in the body
Sympathetic
Control inputs in organs, automatically
SETS you (body) in a state of PANIC - Reactions to any degree tho
If not calmed by parasympathetic-> chronic arousal (psychological factors)
What exactly separates this biology from our psyche (what induces the overtaking of psyche on biology- chemical?)
Endocrine system (autonomic/ sympathetic)
Communication network between itself and brain to change mental activity and behavior (psychological)
Control release of hormones
PNS works closely with this _ it gives you energy and awareness to escape SOCIAL SITUATIONS (sweat glands and adrenaline- AUTONOMIC)
EX: prepares you to deal with threats sent from NS report
However, endocrine slow communication-> releasing chemicals from glands (THINK early periods)
MS: Its glands release hormones into bloodstream (pituitary gland, adrenal glands, thyroid, and ovaries/testes)
Take long (_bloodstream) to arrive at target tissues and affect your psyche/behavior
Gonads (sexual development)
Endocrine glands at play- gonads (sex glands fro reproduction- ovaries and testes)
We all make both types of hormones in gonads, but more aligning with each sex
Give secondary sex characteristics
Growth hormone
Growth hormone grows bone, cartilage, and muscle tissue
Taking it for fun will do more harm than good
Pituitary gland
Controls release of most hormones
Thyroid
Controls metabolism in body
Adrenal
Stress responses
Pineal
Controls bodily rhythms
3 phases of neural communication
- Transmission
- Reception
- Integration
Transmission (neural communication)
Starts off ANY communication (action potential) with enough stimulation in PREsynaptic/FIRST neuron (electrical signals in cell body)
Action potential travels axon -> action potential also creates NEUROTRANSMITTERS released from terminal buttons into synapse
Reception phase (neural communication)
dendrites of other neurons (POSTsynaptic) receive signals
Integration phase (neural communication)
neurons assess and combine signals (inhibitory/ excitatory effects on this new neuron) -> signals then move to other neurons + repeat (depending on inhibitory or excitatory)
Membrane (electrical property of neuron)
Covers neuron from outside environment
Think layer that can be passed through (electrically charged chemicals called IONS)
EX: potassium and sodium travel freely throughout (basically neurons communicating- so it also regulates neurons electrical activity)
Neuron resting state
Electrical charges INSIDE neuron are more negative than electrical charge outside
This is _ BALANCE of various ions inside AND outside of it (more potassium than potassium OUTSIDE)
Stimulation-> AS positively charged sodium ions moves in-> neuron more positively charged —more—> action potential
Then whole axon biz
During action potential/ refractory period
AT PEAK- Sodium ions enter, potassium ions leave
AFTER PEAK- sodium stops, potassium stops leaving THEN sodium leaves, potassium enters to ignite RESTING state again (refractory period)
REFRACTORY PERIOD- neuron responds less to incoming stimulation and action potential
- if neurons are firing all the time than how can they get even a millisecond of a break?
Myelin sheath
Fatty layer on AXON makes neural communication really quick making our consciousness smooth
If neurons lose this- action potential SLOWS as it moves down towards terminal buttons (disrupts ability to process, move)