PSYC283 Module 3 – Prenatal Period and Stages Part 1

Module 3:

Prenatal Period and Stages Part 1

PSYC 283

Human development

Introduction

Have you ever wondered which factor, heredity or environment, is most important in the development of a baby?

In this Module you will discover in what ways these variables affect human development, which begins right at the moment of conception.

INHERITANCE ENVIRONMENT

Objectives

Explain the process of human conception.

Identify areas of study of heredity and environment on behavior.

Analyze how the combination of genetic and environmental factors influence human development.

Conception

 In a sexually mature woman, ovulation (rupture of a mature follicle in either of the ovaries and expulsion of the ovum) occurs approximately every 28 days until menopause.?

 The ovum is transported through the fallopian tube by means of small hair cells called cilia to the uterus or womb.?

 Fertilization usually occurs when the ovum passes through the fallopian tube (Papalia, Wendkos,? & Feldman, 2009).

? Conception

 The creation of a new life depends on the right combination? of two reproductive cells (the ovum and the sperm) that contain in their nucleus the necessary genetic information.

 While body cells have 46 chromosomes in the nucleus? organized into 23 pairs, germ (or reproductive; ovum and sperm) cells only have 23 simple chromosomes.  When conception occurs (fertilization or fertilization), the 23? chromosomes of the ovum are combined with the 23 of the sperm, giving rise to a new cell called a zygote in whose nucleus there will be 46 chromosomes organized in 23 pairs (that is, body cells, the beginning of life).

Inheritance and environment

Heredity can be divided into two areas of study:

1. What we inherit as a species (what all human beings have in common).

2. What distinguishes one person from the other (specific and unique combinations of genes inherited by each erson).

Inheritance and environment

 The inheritance of the species includes the needs for oxygen? and food, in addition to the behaviors we perform, such as breathing and eating. We also require a biological mother.

 In this context, it is possible to consider that other things are? common to every normal human being, such as the beginning of language development and the formation of attachment bonds between infants and caregivers.

Inheritance and environment

 Individual inheritance is the biological differences that? distinguish one person from another.

 A child may go through a longer prenatal period than another? due to genetic differences or may acquire language more easily than another.

 When we study a behavior that differs clearly between? individuals, it is necessary to keep in mind heredity.

Inheritance and environment

Just as heredity can be divided into two areas, the same can be done with the environment.:

What we all necessarily experience.

What sets us apart from others.

Inheritance and

 The environmental influences of?environment  the species are the experiences through which every human being goes through to develop.

 For a child to survive, it requires attention and help to feed, for example. In this way, part of what will be the personality of the adult is shared with the rest of the men in regards to experience and biology.?

 In addition, people are usually in contact with some form of language, growing up in some kind of culture, etc.; experience that produces certain commonalities in development and behavior.?

Inheritance and environment

 Individual environmental influences are those that? change from one person to another.

 For example, food takes many forms: in different cultures,? people eat with knives and forks, with spoons, with chopsticks, in a wooden container or with their fingers.

 Subjects also learn different languages and all these? differences influence their development (Craig y Baucum, 2009).

Congratulations has completed the theoretical summary of this week’s topic!

Actively participate in collaborative sessions.

Remember that to successfully build your learning it is important that:

Review as many times as you require the information contained in the modules folder

(includes this presentation).

Read the reference material to clarify doubts.

Develop all activities as stated in the instructions.

Submit assignments on the date indicated through the educational platform.

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