Chapter 4/5 Flashcards
what is perception
process by which we categorize and interpret input
what is Intermodal perception
recognize an object using different sensory modality
Describe Kagan’s research on Inhibited Temperment
Kagan’s research on inhibited temperament is associated with high levels of physiological arousal. Inhibited temperament refers to a temperament style in which infants or children react to unfamiliar people, objects, or situations with restraint, shyness, or avoidance. According to Kagan, these children tend to have higher heart rates, increased cortisol levels (a stress hormone), and heightened activity in the right frontal lobe of the brain when faced with novel stimuli.
What does phenotype refer to?
Phenotype refers to an individual’s observable traits, such as height, eye color and blood type. A person’s phenotype is determined by both their genomic makeup (genotype) and environmental factors.
Alcohol during pregnancy has what affect?
below-average intelligence, a heart defect, and facial deformities.
cephalocaudal pattern
the sequence in which the fastest growth always occurs at the top - the head. Physical growth in size, weight and feature differentiation gradually works its way down from the top to bottom. The same pattern occurs in the head area - top parts of the head to the lower parts such as the jaw
Proximodistal pattern
Growth sequence that starts at the center of the body and moves towards the extremities. For eg. muscle control of the trunk and arms matures before control of the hands and fingers. Infants use their whole hand as a unit before they can control fingers.
Precocious puberty
term used to describe the very early onset and rapid progression of puberty. Diagnosed when puberty occurs before 8 years of age in girls and 9 in boys
Explain the early onset of menarche and puberty correlation
Some environmental factors such as stress, abuse, maternal harshness, father absence, adoption and low socioeconomic status are associated with earlier puberty and menarche
menarche
first mentstruation
Hormones
powerful chemical substances secreted by the endocrine glands and carried through the body by the bloodstream
androgens
The main class of male sex hormones
testosterone
an androgen that is a key hormone in boy’s pubertal development
estradiol
an estrogen that is a key hormone in girls pubertal development
What are the characteristic changes associated with puberty in males
increase in penis and testicle size, appearance of straight pubic hair, voice change, first ejaculation, curly pubic hair, body growth, growth of armpit hair, voice changes, facial hair
What are the characteristic changes associated with puberty in females
breasts enlarge, pubic hair appears, hair in the armpits, height, hips become wider than shoulders, menarche, cycles start highly irregular
Non physical changes with puberty
body image /body awareness
Nature vs nurture epigentics
in the epigenetic view, development is an ongoing, bidirectional interchange between heredity and the environment
neuroconstructivist view
a) biological processes (genes for example) and environmental conditions (enriched vs impoverished for example) influence the brains development
b) the brain has plasticity and is context dependent
c) Development of the brain is closely linked with the child’s cognitive development
This view emphasizes the importance of considering interactions between experience and gene expression in the brain’s development
Frontal lobes
voluntary movement, thinking, personality and intentionality or purpose (front of brain - ventral)
Occipital lobes
vision - dorsal part of brain
Temporal lobes
hearing, language processing, memory - above ears
Parietal lobes
spatial location, direct attention, motor control (Top middle of brain)
Neurons
axon sends electrical signals up the neuron, at the terminal chemicals called neurotransmitters are released into synapses sending a message to the next neuron