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The size of our brains increases rapidly. For example, the brain of a 2-year-old is 55% of its adult size, and by 6 years old the brain is about 90% of its adult size (Tanner, 1978). During early childhood (ages 3–6), the frontal lobes grow rapidly. Recalling our discussion of the 4 lobes of the brain earlier in this book, the frontal lobes are associated with planning, reasoning, memory, and impulse control. Therefore, by the time children reach school age, they are developmentally capable of controlling their attention and behavior. Through the elementary school years, the frontal, temporal, occipital, and parietal lobes all grow in size. The brain growth spurts experienced in childhood tend to follow Piaget’s sequence of cognitive development, so that significant changes in neural functioning account for cognitive advances (Kolb&Whishaw, 2009; Overman, Bachevalier, Turner,&Peuster, 1992).

Motor development occurs in an orderly sequence as infants move from reflexive reactions (e.g., sucking and rooting) to more advanced motor functioning. For instance, babies first learn to hold their heads up, then to sit with assistance, and then to sit unassisted, followed later by crawling and then walking.

Motor skills refer to our ability to move our bodies and manipulate objects. Fine motor skills focus on the muscles in our fingers, toes, and eyes, and enable coordination of small actions (e.g., grasping a toy, writing with a pencil, and using a spoon). Gross motor skills focus on large muscle groups that control our arms and legs and involve larger movements (e.g., balancing, running, and jumping).

As motor skills develop, there are certain developmental milestones that young children should achieve ( [link] ). For each milestone there is an average age, as well as a range of ages in which the milestone should be reached. An example of a developmental milestone is sitting. On average, most babies sit alone at 7 months old. Sitting involves both coordination and muscle strength, and 90% of babies achieve this milestone between 5 and 9 months old. In another example, babies on average are able to hold up their head at 6 weeks old, and 90% of babies achieve this between 3 weeks and 4 months old. If a baby is not holding up his head by 4 months old, he is showing a delay. If the child is displaying delays on several milestones, that is reason for concern, and the parent or caregiver should discuss this with the child’s pediatrician. Some developmental delays can be identified and addressed through early intervention.

Developmental milestones, ages 2–5 years
Age (years) Physical Personal/Social Language Cognitive
2 Kicks a ball; walks up and down stairs Plays alongside other children; copies adults Points to objects when named; puts 2–4 words together in a sentence Sorts shapes and colors; follows 2-step instructions
3 Climbs and runs; pedals tricycle Takes turns; expresses many emotions; dresses self Names familiar things; uses pronouns Plays make believe; works toys with parts (levers, handles)
4 Catches balls; uses scissors Prefers social play to solo play; knows likes and interests Knows songs and rhymes by memory Names colors and numbers; begins writing letters
5 Hops and swings; uses fork and spoon Distinguishes real from pretend; likes to please friends Speaks clearly; uses full sentences Counts to 10 or higher; prints some letters and copies basic shapes

Questions & Answers

I believe psycology courses are often required for so many programs due to the many issues it covers.
Ashley Reply
Dueto the fact it is not easily studied. One can not study the mind hands on because its not matter or energy.
Ashley
The science of studying.
Ashley
psyche: meaning soul
Ashley
psychology: the scientific study of mind and behavior
Ashley
how one behaves
Ashley
I never knew psyche referred to your soul
Shawnte
I have to say I've always been somewhat interested in psychology
Shawnte
traducir en español ya
Rafael
traducir en español
Rafael
traducir en español ya traducir en español ya quiero que se traduzca en español ya
Rafael
traducir en español ya
Rafael
suppose you are at a dinner party with your friend.The fork, spoon, knife and glasses all produce noisy sounds.What psychological factors influence the discussion between you and your friend?
Vava Reply
It may give me an impression to the other person that the person who makes the noise is nervous or either ill-mannered.
Indefatigable
I would think that people at the table are not comfortable which could be because of the environment or the topic of discussion or the thoughts working in their minds.
Ritu
depending how loud and frequently the sound are made the discussion can change
David
Maybe the noise is to distract the discussion between my friend and I or the discussion I'm supposed to have with my friend is confidential and that's the only way we can talk freely
Naomi
why functinalism?
philip Reply
which question is important in this chapter
Mahi Reply
what is the difference between retention and application and what can be done to improve the connection between the two
frederick Reply
Clues should be developed and associations be formed
philip
what is the study of personality?
Yonatan Reply
psychology
Racheal
individual traits
Utkarsh
Personality psychology
Riya
personality psychology is a branch of psychology that studies personality and its variation among individuals
Swapnil
what are the basic statistical concepts in psychological research ?
Pawanjeet Reply
mean ,median ,NPC ,t ,z test
Soumyashree
what is the NPC?
Fouad
Maen median mood stander daviation
Janat
Percentile also
Janat
NPC stans for normal probability curve
Janat
Normal probability curve (NPC)
Janat
yez
Soumyashree
Yhn koi b questione kr skta h?
Janat
is there any scale for measuring post COVID Anxiety?
Richard Reply
I'd like to know if there's any?
Zino
I've heard about Coronavirus Anxiety Scale (CAS). It works as a mental health screener but I'm not sure anyone can do the test except psychologist
divani
Thanks !
Zino
no
Hausa
Thanks Divani zahra
Mohd
explain the function how intelligence and learning function together
Truvanie Reply
Learning comes before intelligence Learning could be the process of acquiring knowledge. Or the ability to gain knowledge Whereas intelligence is the display of acquired knowledge.
Felix
I love it
Teena
Jade Baccus, this is kind of hard "to me" it is the root of living altogether, without both how can we live in a world like this? how can we make new discoveries?
Jade
intelligence: can be nourisht and remain indipendent from how much knowledge we aquire. But can be displayed thru use and application of knowledge itself
fabio
Hey, is there any classes by psychology grp
Smitha
Hlw Every0ne
Khalilur
learning can be work together with intelligence like a partner with the thinking of life
James
schools of psychology
Onogwu Reply
hi
giri
hi
Swapnil
hi
Munir
hello
Imsekar
hai
Tu
Hi
piya
hello
kajal
Hello
Mohamed
hii
grace
hi
george
hi
Anuja
hi
kajal
gud night
grace
Good night everyone
Anuja
good night 😴🌃
Swapnil
hello
Ananya
What's the point of this chat section?
Mohamed
to say hello and to feel solidarity.
Tu
the early childhood can reference the emotions?
Sammi Reply
Our early childhood experiences are important in the development of our personalities. It kind of shapes our behaviour and mannerism.
Debarpita
Especially in choosing career
Felix
😅Well that's complicated. It differs from person to person.
Debarpita
The early childhood or let's say your upbringing plays a vital role in driving your emotions. If one did not have a pleasant childhood it's highly likely they are more vulnerable to depression or some other psychological condition.
Indefatigable
how to change the emotion?
Sammi Reply
change the thought at hand .
Shawnte
Then I'm assuming the mind will begin to let go of the prior emotion.
Shawnte
Yes right. Think about something else, then emotion will follow.
Annie
then join life
Munir
I don't understand about this
Munir
Emotions run hand in hand with the mind and environment. A person can be sad or angry on a certain things going on in their mind then something can happen in the environment around them that m adds keys them happy.
Douglas
how has the new legalization of marijuana effected the anti drug programs
Summer Reply
how to change the emotional ?
Sammi
I am wrilly interisting about big problems psihycil nature between famillys/like parents bully some childe physically , even hall life and show some kinde of heath and $inaid
Zorica Reply
same
Gaea
Never give minor issues space. Time creates space, more time more space therefore if u give a small issue more time it gets more space in your mind hence breeding stress
Andrew Reply
yes yes yes so true
Gaea
hi..my brother gets angry Everytime I say no to him for anything he ask for he don't talk to me after that.. Everytime I only have to say sorry so this time I decided not to say sorry he haven't talked to me for two weeks I am so stressed what should I do
Nush
give him so time. I think you should let him figure out his own feelings. plus, you did the right thing. he needs to know that not everyone will give him what he wants.
Gaea
Don't be stressed out . You did right thing. but remember one thing don't show angry gestures to him or don't try to make him realize by teasing or scolding. If you try to be humble and patient, he may understand his mistake on his own.
PARUL
yeah
Gaea

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Source:  OpenStax, Psychology. OpenStax CNX. Feb 03, 2015 Download for free at https://legacy.cnx.org/content/col11629/1.5
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