Exam 2 Study Guide Flashcards
Reflexes
Built in reactions to stimuli
Newborn sleep
Sleep 16-17 hours a day, REM occurs more in infancy than adulthood
REM
Rapid eye movement sleep, usually when dreams occur
Auto-stimulation theory
The theory that during REM sleep the infants brain stimulates itself
Colic
When a healthy baby cries for a long time for no obvious reason
Brazelton Neonatal behavioral assessment scale
Preformed 24-36 hours after birth, measure reflexes and reactions among infants/newborns
Apgar Scale
Asses the health of newborns one to five minutes after birth, measures heart rate, respiratory effort, muscle tone, body color
Habituation
Decreased response to stimulus after repeated presentations of the stimulus
Stereoscopic vision
The ability of the visual brain to register a sense of three dimensional shape and form from visual inputs
Visual cliff
Examined depth perception in infants by creating a visual illusion of a cliff
Size constancy
Is the recognition that an object remains the same, even though the retinal image of the object changes as you move toward or away from the object
Shape constancy
Is the recognition that an object remains the same shape even though it’s orientation to us changes
Hemispheres
Brain has two hemispheres. Each hemisphere of the cortex has four major areas called lobes. Frontal occipital, lobe, temporal, lobe, parietal lobe.
Corpus callosum
Where fibers connect the brains left and right hemispheres
Neurons
Nerve cells which handle information processing at the cellular level in the brain
Neurotransmitters
Chemicals that allow neurons to communicate with each other throughout the body
Axons
Transmit information away from the cell body
Dendrites
Receive information from other neurons, muscles or glands
Synapse
Tiny gaps between neuron fibers
Synaptogenesis
The creation of new connections between neurons within the brain, spinal cord or between neurons and muscle cells
Neurobiological development
The intricate and dynamic process extends to late adolescence and involves processes such as myelination of axons, synaptic pruning and changes in cell morphology
Plasticity
The brains ability to change
Pruning
The removal of synaptic connections which are the connections between neurons and brain cells
Experience-expectant development
Cognitive developments that occur as a result of interaction with our everyday environment
Experience-dependent development
The idea that the structure and function of the brain are shaped by experiences that an individual has throughout their lifetime
Myelination
Formation of the myelin sheath around a nerve to allow for improved conduction
Cerebral palsy
Damage or abnormalities inside the developing brain that disrupt the brains ability to control movement and maintain posture and balance
Autism
Neurological and developmental disorder that affects how people interact with others, communicate, learn and behave
Gross motor skills
Skills that involve large muscle activities such as moving one’s arms and walking
Fine motor skills
Involve finely tuned movements, grasping, buttoning a shirt
Proximodistal
The general tendency for the development of motor skills to start at the center of an organism and radiate out towards from there
Sensation
Occurs when information interacts with the sensory receptors, the eyes, ears, tongue, nostrils, and skin
Perception
The interpretation of what is being sensed
Mirror neurons
A type of brain cell that is activated both when performing and action and observing another perform the same action
Visual acuity
The ability to see fine details
Menarche
The first menstrual period in a female adolescent
Puberty
A period of rapid physical maturation involving hormonal and bodily changes that occur primarily in adolescence
Primary & secondary sex characteristics
Primary sex characteristics, testes and nails, ores and females are directly involved in reproduction of the species. Secondary sex characteristics are features not directly concerned with reproduction, such as voice quality, facial hair, and breast size.
Secular trend
A long-term development and occurring over an extended period of time, indicating a gradual change aka puberty
Precocious puberty
When children’s bodies begin to change into adult bodies too soon. High risk of engaging in high-risk behavior, such as substance abuse, conduct issues, social isolation, truancy, and multiple sexual partners. As well as self image concerns.
Anxiety
Apprehension tension, or an easiness that stems from the anticipation of danger which may be internal or external