Lifespan Development Flashcards
Characteristics determined by information coded on a person’s genes is called ________, while ________ refers to a set of observable and measurable characteristics (e.g., eye color, intelligence) that develop from an interaction between a person’s genetics and their environment.
Genotype; phenotype
The idea that genes set boundaries within which
environment determines
what phenotypes will
occur is referred to as what?
Range of reaction
The time-frame during which a living organism is biologically prepared to acquire certain behaviors, but is only able to do so with the presence of appropriate environmental stimuli, is called what?
Critical/Sensitive Period
This term refers to patterns of development that are genetically determined and are influenced very little by the environment.
Maturation
What term is used to describe characteristics that are rather resistant to environmental forces, taking a narrower developmental path?
Canalization
The fact that children have been starting puberty earlier due to better health practices is one example of a/an ________, which is defined as long-term differences across cohorts that indicate the impact of environment on development.
Secular trend
What statistic is used to
estimate the degree to
which a certain characteristic can be attributed to genetic factors?
The heritability index
A person with this disorder
lacks an enzyme necessary for the digestion of the phenalalanine amino acid, which remains toxic to the brain in its undigested form and leads to severe mental retardation.
Phenylketonuria (PKU)

What incurable neurodegenerative genetic disorder that affects muscle coordination and some cognitive functions is an example of an autosomal dominant gene disorder?
Huntington’s Chorea
This disorder is caused by an extra number 21 chromosome and is characterized by moderate to profound mental retardation, abnormal physical features (flattened face, protruding tongue, stocky build), heart abnormalities, and thyroid dysfunction.
Down Syndrome (trisomy 21)
________ is caused by an extra X chromosome in males and leads to incomplete development of secondary sex characteristics; ________ occurs in females when all or part of the second X chromosome is missing and causes sterility, short stature, stubby fingers, and undeveloped secondary sex characteristics; ________ occurs in both males and females and is caused by a weak site on the X chromosome, leading to mental retardation, facial abnormalities, and abnormal speech.
Klinefelter’s
Syndrome; Turner’s Syndrome; Fragile X Syndrome
Environmental agents,
such as drugs or
infections, that cause abnormalities by interfering with normal prenatal development are called what?
Teratogens

During what period of fetal development is a teratogen most likely to cause a major structural defect to a developing organ?
Embryonic period (end of second week after conception to end of eighth week)
Symptoms of ________, a condition caused by a pregnant mother’s heavy alcohol consumption, include retarded growth, microcephaly (underdeveloped, small brain), facial deformities, hyperactivity, irritability, and mental retardation; when only some of the symptoms are present (e.g., lower IQ and hyperactivity), the condition is referred to as ________.
Fetal alcohol syndrome; fetal alcohol effects
True or False: A pregnant woman undergoing antiretroviral therapy is significantly less likely to transmit HIV to her child during the pregnancy process when compared to woman not receiving the therapy?
True- the chance of HIV
transmission from mother to baby when undergoing antiretroviral therapy is reduced from 25% to 2%
The ________ reflex is when an infant grasps a
finger pressed against his palm; the ________ reflex is when an infant extends her big toe and spreads his pinky toe when the bottom of his foot is stroked; the ________ reflex is when an infant arches her back, extends her legs, and projects her arms outward when her head is slightly dropped or she hears a loud sound; the ________ reflex is when an infant makes stepping motions when he his held upright and his feet touch the ground.
Palmar grasp; babinski; moro (or startle); stepping
These are the 6 family risk factors, according to Rutter, that place infants and young children at risk of child psychopathology; research indicates that children with 1 or no risk have a 2% chance of psychopathology, while 4 or more risks led to a 21% chance.
Low SES, large family size
(overcrowding), severe
marital discord, parental
criminality, maternal psychopathology, and
placement of the child outside of the home
According to Bronfenbrenner, the ________ is
the child’s immediate setting and includes family,
school, and daycare; the ________ comprises
connections between immediate environments (e.g., a child’s home and school); the ________ is the child’s external environment that has only an indirect influence on development, such as a parent’s workplace; the ________ refers to the larger cultural and subcultural context in which the other systems are embedded (e.g., national economy, politics).
Microsystem;
mesosystem; exosystem; macrosystem
True or False: At
birth, infants show
no clear preference for taste?
False- they are capable
of experiencing all 4
tastes, though show a clear preference for sweets
What is the least
developed part
of an infants brain at birth?
The cortex
According to Piaget, ________ occurs as a child interacts with the environment and subsequently develops organized ways of thinking about the world (cognitive schemas); it consists of ________, which is when a child perceives and interprets new information in terms of existing schemas, and ________, which is when existing schemas must be modified to provide consistency with external reality.
Adaptation; assimilation; accommodation
Piaget believed humans were biologically driven to produce an optimal state of stability between their cognitive structures and their environment, which he termed ________, a state that is necessary for cognitive development to occur.
Equilibration (accommodation occurs
during disequilibrium,
assimilation during equilibrium)
What are the 4
stages of cognitive
development according to Piaget’s theory?
Sensorimotor (birth to 2
years), preoperational (2
to 7 years), concrete
operational (7 to 12 years), and formal operational (12+ years)
When a child who is in the
sensorimotor stage of development begins to understand that even if an object cannot be seen, it still exists, is said to be developing what?
Object permanence
A child in the preoperational stage does not yet understand that others do not experience the world the same exact way they do and, thus, their experience is shared universally, which is termed ________; an example would be a 2 y/o who scrapes her knee and assumes mommy is also in pain.
Egocentrism
Children in the preoperational stage often believe they can control objects or events just by thinking about them, termed ________, or that inanimate objects possess thoughts and feelings, termed ________, both of which are a result of egocentrism.
Magical thinking; animism
According to Piaget, ________ refers to the tendency to focus on a single detail of a situation while neglecting other important features, which is present during the preoperational stage and limits a child’s ability to understand the world.
Centration
One of the most prominent developments during the concrete operational stage is ________, or the ability for a child to understand that the underlying properties of an object may not change just because its physical appearance has.
Conservation (results from the development of decentration and reversibility)
A person in the formal operational stage of development has the ability to arrive at and test alternative explanations for observed events, referred to as ________, and can evaluate the logical validity of verbal assertions without making reference to real-world circumstances, which is termed ________.
Hypothetical-deductive reasoning; propositional thought
An adolescent who is convinced that others are just as concerned with and critical of his behavior as he is exemplifies what characteristic of the formal operational stage of development?
Imaginary audience
An adolescent who experiences a break-up and is convinced that no one could ever come close to understanding the emotional pain she is experiencing is engaging in what characteristic of the formal operational stage of development?
Personal fable (the belief that one is unique and indestructible)
This neo-Piagetian theory of development compares the human mind to computer processes, proposing that just as a computer improves with changes to hardware and software, so to can a child’s mental capacities improve by learning rules and strategies for processing information better.
Information Processing Theory
This theory proposed that cognitive development occurs as a direct response to social interactions and that learning occurs on the interpersonal and intrapersonal levels?
Vygotsky’s Theory of Cognitive
Development (Social
Development Theory)
According to Vygotsky, the difference between what a person can do without help and what they can do with help is referred to as ________; ________ is the term used to describe the help provided to a child by others.
Zone of proximal development; scaffolding