Linked Life Data

8111169

Source:http://linkedlifedata.com/resource/pubmed/id/8111169

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1994-3-31
pubmed:abstractText
Autonomic and behavioral response to fear stimulation (sudden noise 80 dB) was studied in 12 sleeping infants at ages 8-50 weeks. The aim of the present study was to identify a possible passive defense response in infants. The response, which is widespread in birds and mammals, is characterized by apnea and bradycardia with circulatory changes as seen during the forced diving response. Upon stimulation, two respiratory responses were elicited: apnea preceded by irregular respiration or simple irregular respiration. Apnea was elicited in 58% of stimulations at ages 8-16 weeks compared to 14% at 28-50 weeks. The mean duration of apnea decreased from 7.8 s (+/- 1.8 s) at 8-13 weeks to 4.7 s (+/- 1.1 s) at 17-20 weeks. The preceding irregular respiration increased from 5.3 s (+/- 4.4 s) to 10.6 s (+/- 5.4 s) at the same ages. The heart rate response was biphasic and were interpreted as the orienting response. The mean deceleration in relation to apnea was 16% at 8-16 weeks and was reduced to 8% at 28-50 weeks. Infants of smoking mothers were more prone to respond with apnea than infants of non-smoking mothers (73% versus 38%). REM sleep and long postprandial sleep time increased the probability of apnea response (62% versus 38% and 66% versus 35%). The responses seen may be interpreted as expressions of the passive defense response.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0803-5253
pubmed:author
pubmed:issnType
Print
pubmed:volume
82
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
913-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Autonomic response to auditory stimulation.
pubmed:affiliation
Department of Pediatrics, University Hospital, Tromsø, Norway.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Research Support, Non-U.S. Gov't