Developmental Timeline Essay

Open, View, and/or
Download this Document

Total Length: 693 words ( 2 double-spaced pages)

Total Sources: 1

Page 1 of 2

Developmental Timeline

The development of an individual is the result of maturation of the nervous system and psychological reactions, which in turn is determined through genetics and environmental factors. The study of an individual and his environment is summarized under the biopsychosocial model. A better understanding of human psychological, cognitive and moral development is largely dedicated to the efforts of Erik Erikson, Jean Piaget, and Lawrence Kohlberg.

Brain and Nervous System Development

Neurologic development begins in the third week of intrauterine life, marked by the development of a neural plate on the ectodermal surface. In folding of this plate produces a neural tube, which is destined to be the future Central Nervous System, and a neural crest, which forms the peripheral nervous system. Neuroectodermal cells differentiate into neurons. The forebrain, midbrain and hindbrain are evident by the fifth week, during which, the dorsal and ventral horns of the spinal cord have also begun to form, along with their motor and sensory nerves. Myelination of these nerves begins by mid-gestation and continues up to the second year of life. (Kliegman, Behrman, Jenson & Stanton, 2009)

Axons and dendrites develop most rapidly during the first trimester.

Stuck Writing Your "Developmental Timeline" Essay?

View All Our Example Developmental Timeline Essay

Have A Custom Example Essay Written

DNA replication, which is a marker of brain growth, is greatest before mid-gestation and in the first few months of life. By the fortieth week of gestation, the structure of brain development is complete. Synapses are pruned back considerably and new connections continue to form after birth. (Kliegman et al., 2009)

Lifespan Development

The developmental milestones are divided into gross motor, fine motor, and communication and cognitive. In the neonatal period, the newborn lies in a flexed attitude, and displays Moro's and doll's eye reflex. By the third month, the infant can lift head and displays a social smile. By seven months of age, an infant babbles monosyllables, can sit with support and may show signs of displeasure when social contact is broken. By ten months, an infant can sit up without support, responds to its name and can play 'peek-a-boo'. By one year, a child can walk with one hand held….....

Show More ⇣

     Open the full completed essay and source list


OR

     Order a one-of-a-kind custom essay on this topic


sample essay writing service

Cite This Resource:

Latest APA Format (6th edition)

Copy Reference
"Developmental Timeline" (2012, May 16) Retrieved May 20, 2025, from
https://www.aceyourpaper.com/essays/developmental-timeline-57808

Latest MLA Format (8th edition)

Copy Reference
"Developmental Timeline" 16 May 2012. Web.20 May. 2025. <
https://www.aceyourpaper.com/essays/developmental-timeline-57808>

Latest Chicago Format (16th edition)

Copy Reference
"Developmental Timeline", 16 May 2012, Accessed.20 May. 2025,
https://www.aceyourpaper.com/essays/developmental-timeline-57808
   

Open, View, and/or
Download this Document
order custom essay example