Behavioral Science Flashcards
(564 cards)
Who developed the doctrin of phrenology and what were the three contributions?
- well-developed trait, that part of the brain would expand and cause a buldge in head
- Measure psychological attributes by feeling the skull
- generate research on brain function
Franz Gall
Who was the first person to study the five functions of the brain and what was the one method he used?
Pierre Flourens
Exturpation (abalation) where various parts of the brain are removed and the consequences are observed. (specfic parts of brain have specific functions)
What was the one foundation William James formed and what does it study?
Functionalism: how mental processes help individuals adapt to their environment
What concept did John Dewey criticize and what was the one main belief?
Criticized the concept of reflex arc, which breaks the process of reacting to a stimulus into discrete parts
Psychology should focus on the study of organisms as a whole as they adapt to environment
What was Paul Broca’s two main contributions?
- Person to demonstrate that specific functional impairments could be linked with specific brain lesions.
- Found lesion in specific area of left brain and man was unable to speak, led to this area being called Broca’s lesion
What were the three main contributions from Hermann Von Helmholtz?
- first to measure the speed of a nerve impusle
- Related measured speed of inpulse to reaction time, providing a link between behavior and nervous system activity
- Transitions psychology out of realm of philosophy into natural science
What were Sir Charles Sherrington’s two contributions and which one was disproven?
- First inferred the existence of synapses
- Though synaptic transmission was an electrical process, but a chemical process
What are the two purposes of the meninges?
- Protect brain by keeping it anchored to the skull
- Resorb cerebrospinal fluid
What are the three layers of the meninges? (List in order from bone to brain)
- Dura mater
- Arachnoid Mater
- Pia Mater
What two brain structures form the brain stem?
Hindbrain and Midbrain
What are the five structures of the Forebrain (prosencephalon) and their functions?
- Cerebal Cortex: perceptual, cognitive, and behavioral processes
- Basal Ganglia: Movement
- Limbic System: Emotion and Memory
- Thalamus System: Sensory relay station except smell
- Hypothalamus: endocrine system, autonomic system, maintain homeostasis
What are the four divisions in the Hindbrain?
- Cerebellum: refined motor movements
- Medulla oblongata: heart, vital reflexes
- Reticular formation: Arousal and alertness
- Pons: Communciation within the brain (contains sensory/motor pathways between medulla and cortex), breathing
What are the two divisions in the Midbrain (mesencephalon)? Function?
- Inferior: receive sensory info from auditory system
- Superior: receive visual sensory input
During embryonic development, what are the two structures the hindbrain(rhombencephalon) divide into? What do these structures become?
- Mylencephalon: becomes the medulla oblongata
- Metencephalon: becomes the pons and cerebellum
During prenatal development, what are the two structures the presencephalon divide into? What do they form? One forms three structures and other forms 4
- Telencephalon: form cerebral cortex, basala ganglia, limbic system)
- Diencephalon: form thalamus, hypothalamus, posterior pituitary gland, pineal gland)
What is the main purpose of an electroencephalogram?
To study the electrical activity generated by large groups of neurons
What does regional cerebral blood flow measure? How? And what assumption does it make?
- Detects broad patterns of neural activity based on increased blood flow to different parts of brain. Use fMRI
- Assumes blood flow increases to regions of the breain that engage in cognitive function
What is a PET scan and what does it use?
It uses radioactive sugar and injects it into body. Uptake and dispersion in target tissue is observed
What are the three subdivisions of the hypothalamus and functions?
- Lateral Hypothalamus: Trigger eating a drinking
- Ventromedial hypothalamus: Provides signal to stop eating
- Anterior hypothalamus: control sexual behavior, sleep, body temp
What sends signal to posterior pituitary? What are the two hormones released?
Has axonal projections from the hypothalamus and releases Vasopressin and oxytocin
Where does the pineal gland receive its signals from and what does it regulate?
Receives direct signals from the retina and secretes melatonin to regulate sleep
What is the extrapyramidal system?
Gathers info about the body’s position and carries this info to the CNS
What are the 6 components of the Limbic system? Functions?
- Septal Nuclei: Pleasure center
- Amygdala: Attention/fear, help interpret facial expressionas, part of instrinsic memory for emotional memory
- Hipocampus: role in learning and memory processes. Form long-term explicit/epidsodic memories
- Prefrontal cortex: planning, expressing personality, making decisions (ventral media cortex: experiecing emotion/ventromedial preforntal cortex: controlling emotional responses from the amygdala to decision making)
- Thalamus: sensory processing
- Hypothalamus: release neuotrasmitters that affect mood and arousal
How does the hippocampus communicate with other portions of the limbic system?
Fornix


