perinatal - water makes little sense from either a...

Info iconThis preview shows pages 1–21. Sign up to view the full content.

View Full Document Right Arrow Icon
The Perinatal Period: Transition from the Womb
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Birth as a “non-event” Neuro-behavioral systems functional prior to birth develop in anticipation of need “forward reference” of Weiss or “environment expectant” For example , sucking swallowing “respiration” hiccups yawning So, other than constraints imposed by the intra-uterine environment (e.g. fetuses cannot cry without air), there is little behavioral difference between a late-term fetus and a newborn
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What distinguishes a newborn from a fetus is that these behaviors are NECESSARY for survival For example, “breathing” is not functional as respiration in the fetus, but is essential to the newborn. How is initiation of respiration assured? 1. Temperature change is a noxious stimulus 2. Anoxia produced by clamping umbilical cord 3. Fluid is expelled from lungs during delivery, the remainder quickly absorbed. Spanking a newborn is not necessary to initiate breathing, and birthing in warm
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 16
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 18
Background image of page 19

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 20
Background image of page 21
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: water makes little sense from either a physiological or evolutionary perspective. 4. Changes in other sensory inputs Similarly, sucking and swallowing are essential to the newborn, but have been expressed by the fetus. About the only thing not apparent in the fetus that is expressed by the newborn is crying, which we will discuss later. So from a behavioral standpoint, birth really is a non-event, unlike, for example amphibian metamorphosis. What about from a biological/comparative perspective? Birth bears little relationship to maturity Are there biological markers of maturity that define birth? Precocial born in a relatively mature state Altricial born in a relatively immature state CAUDATE CAUDATE CORTEX CORTEX MEDULLA MEDULLA CEREBELLUM CEREBELLUM THALAMUS THALAMUS MIDBRAIN MIDBRAIN Bignall, K.E. (1974) Experimental Neurology, 42, 566-573....
View Full Document

This note was uploaded on 11/21/2011 for the course DEP 3053 taught by Professor Miller during the Fall '08 term at University of Florida.

Page1 / 21

perinatal - water makes little sense from either a...

This preview shows document pages 1 - 21. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online