Exam Unit 1 Flashcards
What are the steps of the scientific method
Identify area of research and form an aim
Collect information or data
Identify research question and create a hypothesis
Design a research method to test hypotheses
Collect and analyze data
Draw a conclusion
Report findings
Test the conclusion
What is an IV
the thing that is deliberately manipulated or varied by the experimenter
What is a DV
the thing that is being measured in the experiment
What is a EV
it is something other than the IV that could cause changes in the DV
What is a CV
a variable other than the IV that has a systematic effect on the value of the DV.
How do you write a hypothesis and what is it
A hypothesis is a clear statement that predicts how the changes in the IV will affect the results of the DV.
What is a population
the group in which we wish to draw conclusions from.
What is a sample
the selection of a smaller group of people from the population
What is a random sample
a sampling procedure where every member or number of the population has an equal chance of being selected.
what is stratified sampling
the division of the population into smaller sub groups
What is the difference between Experimental group and Control group
E group - experimental group or e group is the group that is exposed to the IV.
C group - control group or c group is the group that is not exposed to the IV.
What is the Pablo experiment and how do you control for this
Placebo effect - is the participants’ behaviour being influenced by the expectations of how they should or think they should behave.
What is the experimental effect and how do you control for this
Experimental effect - refers to the outcome of an experiment being unintentionally influenced by the experimenter.
What is Qualitative data
he characteristics of what is being studied (opposite to quantitative data it is worded instead of numerical)
What is Quantitative data
refer to measurements - numerical information about the information studied
What is Subjective data
based on opinion, it is data collected based on an individual’s feelings and their responses to the question.
What is Objective data
where everyone is meant to get the same result, it is where there is a right answer.
What is Repeated measures
It is where each participant is part of both groups in the research.
What is Matched participants
participants can be ranked in accordance with scores then allocated to groups.
What are Independent groups
allocates participants to the groups at random
What is Experimental designs
a method of controlling Ev’s by the design of the experiment.
What are the ethical considerations
Confidentiality - (privacy) participants must not be identified in any way in terms of test results
Voluntary participation - Participants have the right to refuse to take part in a study.
Withdrawal rights - Participants have the right to leave a study at any stage, regardless of the effect on the result.
Informed consent - Participants must be given information about the study before they agreed to takepart.
Deception in research - this is only permitted if the results would be confused if the participants have too much information before taking part in the study.
Debriefing - occurs after completion of the study and participants are told the results and conclusions of the study.
What does the CNS consist of
central nervous system consists of the spinal cord and the brain.
What is the role of the CNS
he role of the CNS is to convey messages from the brain to the rest of the body. And the brain to the PNS.
What does the PNS consist of
everything else in the body
What is the role of the PNS
The peripheral nervous systems job is to communicate information fron the body’s organs, glands and muscles to the CNS, from the outside world and inside world. And it also communicates information from the CNS to the body’s organs, glands and muscles via motor neurons.
What are the subdivisions of the PNS
the somatic and autonomic nervous system.
What is the somatic nervous system
responsible for the voluntary movement of skeletal muscles. Motor neurons carry messages from the CNS to muscles.
What is the autonomic nervous system
responsible for the communication of information between the CNS and the body’s non-skeletal muscles and internal organs that are needed to carry out basic bodily functions.
What are the subdivisions of the autonomic nervous system
Sympathetic and parasympathetic
What is the sympathetic nervous system
acts when the body perceives to itself to be in danger or in times of stress. It reddies the body for actions such as the fight, flight or freeze response.
What is the parasympathetic nervous system
operates in times where the body is calm.It maintains automatic day to day bodily functions.
What is the structure of a neuron
neurons are composed of three elements, they are dendrites., soma and axon.
What is the function of a neuron
receive information from other neurons, process the information, and then communicate it to other neurons. Neurons receive, process and then transmit information to each other
What are dendrites
Look tree-like and their role is to receive information from other neurons or sensory receptors via synapses and deliver this to the cell body or soma.
What are soma
It is the cell body and is the largest part of the neuron, it controls the metabolism and maintenance of the cell.
What is an axon
Is the nerve fiber that carries information away from the soma to their ends towards other cells in contact with the neuron.
What is myelin
Is that fatty substance that covers the axon and it is for insulation and to protect the axon from fluid and other neurons.
What are glial cells
Not actually part of the neuron. But they hold neurons together like glue. The 4 main functions include: surround neurons and hold them in place, supply nourishment and oxygen to neurons, remove dead neurons, insulate one neuron from another and increase the speed of transmission of nerve impulses.
Where is the hindbrain located
Is located towards the back or underneath of the brain.
What does the hindbrain consist of
It consists of the medulla, pons and cerebellum.It is also part of the reticular formation.
What is the role of the hindbrain
The hindbrain mainly supports bodily functions and is the link between the spinal cord and brain. The hindbrain is crucial for movement and balance.
What is the medulla
Is the continuation of the spine and it controls breathing, heartbeat and digestion.
What is the pons
Located above the medulla a receives information sent from visual areas to control eye and body actions.
What is the cerebellum
Third major part of the hindbrain. It receives information from the pons and its role is to coordinate the sequence of body movement.
Where is the midbrain located
Sits above the hindbrain and below the forebrain it is much smaller than the other parts and sits in the middle of the brain.
What does the midbrain consist of
reticular formation
What is the role of the midbrain
It is responsible for the regulation of sleep, motor movement, and arousal. It includes the reticular formation.
What is reticular formation
It is a network of neurons part of both the midbrain and hindbrain, and it also connects the hindbrain and forebrain. Important for arousal and the ‘sleeping waking’ cycle
Where is the forebrain located
Located above each of the other parts of the brain and sits on the top of the brain.
What does the forebrain consist of
cerebrum, hypothalamus and thalamus
What is the role of the forebrain
It regulates complex cognitive processes such as thinking, learning, memory, perception, emotion and personality.
What is the cerebrum
It divides the left and right hemispheres. They are separated by the corpus colosseum which is what allows it to exchange and coordinate information. It’s responsible for almost everything we consciously think, feel and do.
What is the hypothalamus
Is in control of basic survival needs including: sleep, temperature, expression of emotions and the 4 f’s - feeding, fighting, fleeing and fornication. Also hunger, thirst and instinctive drive. The hypothalamus basically maintains the body’s internal environment.
What is the cerebral cortex
Is the other layer of the brain and receives information from the environment; higher order thinking such as problem solving and planning. It is also involved in memory , language and emotion regulation. It has billions of neurons; bulges are called gyri; valleys are called sulci.
What are the four lobes
frontal, parietal, temporal, occipital.
What are the 3 parts of the brain
hindbrain, midbrain and forebrain.
What is the role of the frontal lobe
body movement, language, planning, judgement, problem solving, parts of personality and emotional regulation.
What does the frontal lobe consist of
it includes the primary motor cortex
What is the role of the parietal lobe
receives sensations from the body; touch, pressure, temperature and pain.