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| 34608321 | stranger anxiety | the fear of strangers that infants commonly display, beggining by about 8 months of age | |
| 34608322 | attachment | an emotional tie with another person; shown in young children by their seeking closeness to the caregiver and showing distress on seperation | |
| 34608323 | critical period | an optimal period shortly after birth when an organism's exposure to certain stimuli or experiences produces proper development | |
| 34608324 | imprinting | the process by which certain animals form attachments during a critical period very early in life | |
| 34608325 | basic trust | according to Erik Erikson a sense that the world is predictable and trustworthy; said to be formed during infancy by appropriate experiences with responisive care givers | |
| 34608326 | self concept | a sense of one's identity and personal worth | |
| 34608327 | adolescence | the transition period from childhood to adulthood, extending from puberty to independence | |
| 34608328 | puberty | the period of sexual maturation, during which a person becomes capable of reproducing | |
| 34608329 | primary sex characteristics | the body structures (ovaries, testes, and the external genitala) that make sexual reproduction possible | |
| 34608330 | secondary sex characteristics | nonreproductive sexual characteristics, such as femal breasts and hips, male voice quality and hair | |
| 34608331 | menarche | the first menstual period | |
| 34608332 | identity | one's sense of self; according to Erikson, the adolescent's task is to solidify a self by testing and integrading various roles | |
| 34608333 | intimacy | in Erikson's theory, the ability to from close, loving relationships; a primary developmental task in late adolescence and early adulthood | |
| 34608334 | menopause | the time of natural cessation of menstruation; also refers to the biological changes a woman experiences as her ability to reproduce declines | |
| 34608335 | alzheimer's disease | a progressive and irreversible brain disorder characterized by deterioration of memory, reasoning, language, and finally, physical funtioning | |
| 34608336 | cross sectional study | a study of different ages are compared with one another | |
| 34608337 | longitudinal study | research in which the same people are restudied and retested over a long period | |
| 34608338 | crystalized intelligence | one's accumulated knowledge and verbal skills; tends to increase with age | |
| 34608339 | fluid intelligence | one's ability to reason speedily and abstractly; tends to decrease during late adulthood | |
| 34608340 | social clock | the culturally preferred timing of social events such as marriage, parenthood, and retirement |
