physical, sensory, perceptual development in infancy

What are adaptive reflexes

reflexes that help babies survive and adapt

What are primitive reflexes

Automatic reflexes present at both that usually disappears over time

How do infant sleep patterns change over time

Sleep becomes more regular and predictable with age

What does a basic cry usally signal

Hunger

What is colic?

Intense crying for 3+ hours a day for at least 3 weeks

What happens to infant body weight in the first year

It usually triples

What is dynamic system theory

Motor development results from interaction between inborn abilities and experience

What is macronutrient malnutrition

Deficiency of proteins, carbohydrates and fats

What is marasmus?

Severe under nutrition caused by lack of calories

What is Kwashiorkor?

severe protein deficiency

What is preference technique

Measuring what babies look at longer

What is habituation?

Reduced responses after repeated exposure

What is dishabituation?

Renewed interest in a new stimulus

What are binocular cues?

Depth cues using both eyes.

What are monocular cues?

Depth cues using one eye.

What can infants recognize in listening development

Speech sounds and familiar voices

what part of the brain is most fully developed at birth

Te midbrain and the medulla

How does infant crying change in the first weeks of life?

Crying for the first 6 weeks and then it decreases

What percentage of infants develop colic?

About 15-20%.

Intramodel perception in infancy Bahrick and Lickliter (2000)

found that babies who habituated to a combined auditory- visual stimulus were better able to recognize a new stimulus than infants who habituated to either the auditory or the visual stimulus alone

Intramodel perception in infancy Spelke (1979)

showed that 4-month-old infants can connect sound rhythms with movement.

preference technique

the baby is simply shown two picturesor two objects, and the researcher keeps track of how long the baby looks ateach one