Synaptic pruning Study guides, Class notes & Summaries

What sends the message, and what receives the message? - ANSWERAxons send message, neurons receive How many neurons are in the brain by toddlerhood? - ANSWERAbout 100 million neurons, separated by synaptic gaps Myelination - ANSWERProcess by which axons become encased in a myelin sheath, increasing speed of communication between neurons Synaptic pruning - ANSWERProcess in brain development in which dendritic connections that are used become stronger and faster and those that are unused ...

Gender roles correct answer: What we do that identifies us as men and women Gender identity correct answer: How we perceive ourselves as female and male Gender typing correct answer: Process by which we acquire our gender identity and our gender roles Gender schema correct answer: Young children are influenced by society's ideas about what it means to be a male or female in their culture How are males and females treated differently from birth? correct answer: - how they are dr...

What is the embryonic period? Weeks 3-8 of pregnancy, formation of placenta and brain development What is the fetal period? From the end of the embryonic period until the end of pregnancy, viability at 24 weeks What influences sexual orientation? Genetics, birth order, hormones What are some maternal factors that can affect fetal development? Age, environmental teratogens, diabetes, high blood pressure, Rh factor, weight gain, stress, depression What are some risk...

What is the difference between habituation and adaptation? How could you tell if a decrease in the behavioral response of an animal is due to habituation or adaptation? - Habituation: Non noxious stimuli at low frequencies to stop an animal from responding, (reduce quantal content, synaptic pruning), homo-synaptic depression Adaption: What types of molecular events are likely to underlie short term memory? Long term memory? Forgetting? - Short Term: Increase quantal content, increase Ca2+,...

Diseases of the Brain: Exam 1,2 and 3 Latest Update 2024/2025 Complete/Verified 100%

Girls are ___________ than boys in early childhood - smaller During Early Childhood, Girls have more __________ _________ than boys. Boys have more muscle tissue. - fatty tissue During Early childhood, children lose their _________ __________ - baby teeth Children grow an average of ____ to ____ inches a year until they are 11 - 2, 3 __________ lobe areas for planning and organization develop during early childhood - frontal by ____ years old, brain is at 95% peak volume - 6 process in wh...

Developmental Psychology Chapter 3What is the approximate size of the head at birth? - correct answer near full-size because most neurons already exist What is the principle that and infant is born with a very large head compared to body? - correct answer Physical Growth About how many inches does and infant grow each month in the 1st year? - correct answer inch per month An infant -----its birth weigh in its first year of life? - correct answer Triple Heredity/Genes play a strong ro...

Body Growth in Middle Childhood - ANSWER--slow, regular pace -girls shorter and lighter until about age 9, when trend reverses -lower portion of body grows fastest -bones lengthen, broaden -muscles very flexible -all permanent teeth appear Height Worldwide - ANSWER--shortest children: South America, Asia, Pacific Islands, Africa -tallest children: North and Central Europe, Australia, Canada, United States Trends in Physical Growth - ANSWER-from one generation to next, trend in indust...

Psyc 228 Chapter 5 Questions and Answers Myelination ANSWER the formation of a fatty sheath around the axons of a neuron Synapses ANSWER tiny gaps between dentrites and axons of different neurons. they make possible more complex movements and thinking synaptic pruning ANSWER the elimination of neurons as the result of nonuse or lack of stimulation Between 2 and 6 years of age, the brain gains ___________ to _________ percent of it's adult weight ANSWER 20 to 25% brain volumes of...