Question 1

Vandani touches baby Ranjit on the left side of his mouth,and he turns his head towards her hand.This is caused by the

Accepted Answer

The rooting reflex is a natural reflex in newborn babies where they turn their head towards any object that touches or strokes their cheek or mouth area. This reflex helps the baby to find the mother's nipple while breastfeeding. The Palmer grasp reflex is when the baby's fingers curl and grip any object that touches their palm. The avoidance reflex is when the baby turns their head away from a touch or object, indicating discomfort or dislike. The Moro reflex is a startle reflex where the baby throws their arms out and then pulls them back in.

Question 2

Two-month-old baby Francisco is looking at some pictures with his mother Jacaranda.She notices that he seems most interested in

Accepted Answer

Two-month-old infants like Francisco are typically most interested in the boundaries of objects. This is because at this early stage of development, babies are beginning to focus on and discern the edges and contours of objects as part of their visual exploration and learning about the world around them.

Question 3

Cal and Tonia are concerned.As their baby gets older,some of her reflexes seem to be disappearing.What should you tell them?

Accepted Answer

As babies grow and develop, they will naturally start to lose some of their reflexes. This is a sign of normal development and is nothing to be concerned about. It is important for Cal and Tonia to continue to monitor their baby's development and talk to their pediatrician if they have any concerns.

Question 4

The timing of motor development in children

Accepted Answer

The timing of motor development in children can be influenced by various factors, including parental expectations. While genetics and diet play roles in development, they do not entirely determine the timing of motor skills acquisition. The concept of development being highly canalized means that certain developmental milestones tend to occur within specific timeframes despite environmental variations, but this does not imply that development cannot be modified at all. Environmental factors, including the stimulation provided by caregivers, can influence the pace of development.

Question 5

The fact that some reflexes,such as the rooting,sucking,and Palmer grasp,are shared by other primates and seem to have adaptive significance supports the theoretical perspective of

Accepted Answer

The fact that certain reflexes have adaptive significance and are shared by other primates points towards the importance of evolutionary considerations in understanding behavior. As such, the theoretical perspective that aligns with this is evolutionary psychology.

Question 6

Cindy and Dave are thrilled that baby John has learned to take a few shaky steps on his own when he is only 9 months old.His older brother Alex didn't learn to do that until he was 19 months old.Is John really a wonder child?

Accepted Answer

The answer of Cindy and Dave are thrilled that baby...

Question 7

Little Candy is about 9 months old,and has just started to crawl around on her own.

Accepted Answer

Crawling is a milestone that typically occurs between 7-10 months of age, so Little Candy is developing right on schedule.

Question 8

Most babies can sit up on their own by the time they are

Accepted Answer

While some babies may be able to sit up on their own by 4 months old, most babies achieve this milestone by 6 months old. By this age, babies have developed enough upper body strength and coordination to support themselves in a seated position. It is important to note that every baby develops at their own pace, and some may achieve this milestone earlier or later than others.

Question 9

_____ is an avoidance reflex.

Accepted Answer

Blinking is an avoidance reflex as it helps protect the eyes from danger and injury by quickly closing them in response to a threatening stimulus such as a bright light or an object flying towards the face. Rooting, sucking, and swallowing are all feeding reflexes.

Question 10

Infants seems to spend more time in quiet sleep at night if

Accepted Answer

Infants who receive more sensitive care from their parents are known to spend more time in quiet sleep at night. This can be because they feel more comfortable and secure in their environment, leading to better sleeping patterns. The other options (A, B, and C) do not have sufficient evidence to suggest a correlation with an increase in quiet sleep at night.

Question 11

Cross-cultural studies of motor development indicate that

Accepted Answer

Cross-cultural studies show that cultural expectations can shape how children's motor development progresses. For example, in some cultures, early walking is emphasized and encouraged, while in others, infants are carried more often and walking is not expected until later. Therefore, cultural differences can lead to variations in the timing and style of motor development.

Question 12

By the time she is _____,Mara should be able to put on her own clothes.

Accepted Answer

The answer of By the time she is _____,Mara should...

Question 13

The fact that infants are very attracted to faces and things that look like faces lends support to

Accepted Answer

Infants' attraction to faces and facial-like stimuli can be explained through the evolutionary psychology perspective, which suggests that this behavior developed as a survival mechanism to help infants identify and bond with their caregivers. This behavior likely played a crucial role in early human development and has been passed down genetically over time.

Question 14

Little Rebekah is very proud of herself.She can now pour herself a glass of juice without spilling a drop.If she's developing normally,this means she's probably about _____ old.

Accepted Answer

The answer of Little Rebekah is very proud of herself.She...

Question 15

Little Jerzy has just learned how to roll over from his back onto his stomach.If he's developing normally,this means he's probably about _____ old.

Accepted Answer

Most babies learn to roll over from their back to their stomach around the age of 4 to 6 months, with 5 months being a common age for this developmental milestone.

Question 16

Most babies first learn to walk a few steps independently at about

Accepted Answer

According to most developmental experts, babies commonly start taking a few independent steps around 12 months of age. However, there can be some variation with some babies learning to walk a little earlier or later than that.

Question 17

You are examining 2-year-old Manny,and find that his Moro reflex is very strong.

Accepted Answer

The Moro reflex, also known as the startle reflex, typically disappears around 4 to 6 months of age. If a 2-year-old child still has a very strong Moro reflex, it may indicate developmental delay, as this reflex should have integrated into the child's nervous system by that age.

Question 18

All of the following are approach reflexes,except

Accepted Answer

Blinking is a protective reflex that is triggered by the presence of a foreign object or sensation near the eyes. Rooting, sucking, and swallowing are all approach reflexes that are involved in feeding behavior.

Question 19

If you put a wooden dowel in a baby's hand,and then raise it over the baby's head,she will tighten her hold on it.This is an example of the

Accepted Answer

The Palmer grasp reflex is the natural reflex a baby has to grip objects placed in their hand. When a wooden dowel is placed in a baby's hand and raised over their head, the Palmer grasp reflex causes them to automatically tighten their grip on the dowel. The rooting reflex involves turning the head and opening the mouth to search for a nipple, the avoidance reflex involves turning away from unpleasant or aversive stimuli, and the Moro reflex involves the baby's startle response to sudden movements or noises.

Question 20

When a baby hears a loud noise,it may swing its arms out and then bring them together as if grabbing onto something.This is called the

Accepted Answer

The described response of swinging the arms out and then bringing them together as if grabbing onto something is known as the Moro reflex. This reflex is commonly seen in infants when they experience a sudden loud noise or a sudden change in position. The other options, rooting reflex and Palmer grasp reflex, involve different movements and responses in infants. The avoidance reflex is not a commonly recognized reflex in infant development.

Quiz 4: Physical Development in Infancy