Class Notes (808,126)
Canada (493,084)
Psychology (1,978)
PSYC 100 (1,087)

Psyc Week 15 Lecture.docx

3 Pages
Unlock Document

Queen's University
PSYC 100
Ingrid Johnsrude

Psych Wk 15 Lecture: Lifespan Development Childhood development – critical periods of development Development Systematic changes in behaviours and abilities that occur between the moment of conception and death. Change: Continual and cumulative Effects of one age have ramifications at other ages Early stages of Development Most Rapid We know: crucial periods of development in infants and children Teratogens They are toxins Anything that has an adverse effect on development: illness, drugs, alcohol, etc Effects range from very mild to death Many only a problem if exposure occurs during sensitive period Aging DNA & Aging Scientists have isolated a gene sequence that appears to determine how fast our bodies age Difference between: chronological age, biological age (genetic makeup and lifestyle factors) One or two copies of the genetic sequence probably makes less of the enzyme called telomerase when they are growing in the womb Born with shorter telomeres and so are prone to aging more quickly Telomeres Each time a cell divides, the telomeres get shorter Too short, the cell no longer can divide and becomes inactive Associated with aging, cancer and a higher risk of death Factors in aging – sugars (glycation), time, telomere shortening and oxidative stress Dementia Normal aging – slight decrements in speed of processing, memory, and other cognitive abilities (cognitive decline) Mild Cognitive Impairment – isolated impairments, usually in memory Dementia - severe impairments in two or more cognitive domains, as well as functional decline DSM: Diagnostic and Statistical Manual of Mental Disorders Diagnostic Criteria: Dementia 1) Memory impairment 2) One or more – aphasia, apraxia, agnosia, disturbance in executive functioning 12 subtypes of dementia Outlook and aging
More Less

Related notes for PSYC 100

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.