Question 1

The part of a neuron responsible for receiving neural transmissions is the

Accepted Answer

Dendrites are the structures on a neuron that receive electrical messages from other cells.

Question 2

What surrounds and protects neurons, and influences communication among neurons by helping in the formation and strengthening of synapses?

Accepted Answer

Glial cells surround and protect neurons, and they play a crucial role in supporting neuronal function, including influencing communication among neurons and assisting in the formation and strengthening of synapses.

Question 3

A researcher wishes to study the electrical brain activity of infants as they process stimuli. They are likely to use which technology to record the electrical activity in the surface of infants' brains?

Accepted Answer

EEG (Electroencephalography) is the technology used to record electrical activity in the brain, making it suitable for studying brain activity in infants.

Question 4

Research shows that a large number of neural connections are formed during the first few months and years of life. This process is known as

Accepted Answer

The answer of Research shows that a large number of...

Question 5

The death of superfluous neuronal connections is referred to as

Accepted Answer

Pruning is the process where excess neuronal connections are eliminated to improve the efficiency of neuronal transmissions.

Question 6

A main benefit due to the process of myelination is the

Accepted Answer

Myelination improves the conductivity of nerve impulses by insulating axons, allowing for faster transmission of electrical signals along the neuron.

Question 7

Synaptogenesis begins prenatally and is especially rapid

Accepted Answer

Synaptogenesis begins before birth and continues rapidly after birth, especially during the early years of life.

Question 8

Bridget and Theo are parents of an infant. A friend encourages them to buy a learning system for their infant, citing the "use it or lose it" concept of maintaining existing neural connections. Is this the best advice?

Accepted Answer

Pruning away excess neurons is a natural and beneficial process that helps improve neural communication by eliminating unnecessary connections, allowing the brain to function more efficiently.

Question 9

The brain's volume gradually increases over childhood through the process of

Accepted Answer

Synaptogenesis is the process by which neurons form synapses with each other, leading to an increase in brain volume as connections are made and strengthened during childhood development.

Question 10

Which best describes brain development from birth through adolescence?

Accepted Answer

Unused synapses are pruned, and myelination increases, enhancing communication efficiency from childhood to adolescence.

Question 11

Hubel and Wiesel's experiments with kittens helped to better understand

Accepted Answer

Hubel and Wiesel's experiments demonstrated experience-expectant plasticity by showing how visual experiences during critical periods are necessary for the normal development of the visual cortex in kittens.

Question 12

Jess was born with cataracts in both eyes. Considering brain-expectant plasticity, which is the best course of action?

Accepted Answer

Removing the cataracts during infancy is crucial because brain-expectant plasticity relies on early sensory experiences to develop properly. Delaying removal can lead to permanent visual impairments due to missed critical periods for visual development.

Question 13

Which is proof that regions of the brain specialized for experience-expectant plasticity are not necessarily locked into their "expected" paths of development?

Accepted Answer

When a deaf child's auditory processing areas become specialized for visual processing, it demonstrates that the brain can adapt and repurpose regions for different functions than originally expected, showing flexibility in development.

Question 14

Research in brain growth and functioning has led to greater understanding of why some children are _______, while others suffer great harm under adverse environmental conditions.

Accepted Answer

Resilient children are those who can withstand or recover quickly from difficult conditions, which aligns with the context of some children thriving despite adverse environments.

Question 15

Which is a likely example of experience-dependent brain plasticity?

Accepted Answer

Experience-dependent brain plasticity refers to changes in the brain that occur as a result of specific experiences, such as being raised in a highly enriched environment, which can lead to increases in brain surface area.

Question 16

Much of what is known about experience-dependent plasticity is a result of

Accepted Answer

Experience-dependent plasticity is often studied through correlational studies of children in various home environments to understand how different experiences affect brain development.

Question 17

Which best describes the concept of sensitive periods in relation to brain development?

Accepted Answer

Sensitive periods refer to specific times in development when the brain is particularly receptive to certain environmental stimuli or experiences, which can significantly influence the development of certain skills or abilities.

Question 18

Learning a language is substantially easier up until the age of 12. This is evidence of

Accepted Answer

The answer of Learning a language is substantially easier up...

Question 19

_______ appear(s) to adjust in line with human experience and can serve to accelerate or delay the opening of a sensitive period.

Accepted Answer

Brain plasticity refers to the brain's ability to change and adapt as a result of experience, which can influence the timing of sensitive periods.

Question 20

In 2013, the U.S. government launched the _______ to encourage scientific discovery of new tools and methods to study the brain.

Accepted Answer

The BRAIN Initiative (Brain Research through Advancing Innovative Neurotechnologies) was launched in 2013 by the U.S. government to accelerate the development and application of new technologies to study the brain.

Quiz 2: Heredity, Environment, and the Brain