HOME >> BIOLOGY >> NEWS
A genetic basis for behavior in infancy

Infants' early attachment to their parents or caregivers has been considered essential for survival in the human species. Ainsworth and colleagues devised an experimental procedure, the Strange Situation, and described marked individual differences in infants' coping with the stress elicited by two consecutive 3-minute separations from the caregiver. Three basic, coherently organized patterns of infant behavior after reunion with the parent (secure, insecure-avoidant, insecure-resistant) have been regarded as adaptations to the experienced differences in care giving. About 15% of one-year-old infants in non-clinical, low-risk and up to 80% in high-risk (e.g. maltreated) populations show 'atypical' incoherent, contradictory behavior in the presence of the caregiver as if their behavioral strategy collapsed under the stress of the Strange Situation. This behavior, termed 'disorganized attachment' is assumed to reflect the infant's experience of being unable to resolve anxiety.

It has also been shown that disorganization of early attachment is a major risk factor for the development of childhood behavior problems. Attachment disorganization has been supposed to be specifically related to the infant-caregiver relationship. The only child factors that have previously been found to predict disorganized attachment in a non-clinical, low-risk population are poor neonatal orientation and emotional regulation. In the authors previous report the authors suggested that a certain structural variant of the dopamine D4 receptor (DRD4) gene might impose a risk on development of disorganized attachment. The dopamine D4 receptor gene has already been associated with pathological impulsive, compulsive behavior, substance abuse in adults, and with infant temperament traits of negative emotionality and maladaptive behavioral problems, especially attention deficit hyperactivity disorder (ADHD) in children.

The authors have previously reported an association between the
'"/>

Contact: Karl Lorenzen
molecularpsychiatry@mednet.ucla.edu
310-206-6739
Molecular Psychiatry
7-Jan-2002


Page: 1 2

Related biology news :

1. Researchers determine genetic cause of Timothy syndrome
2. Rare childhood genetic syndrome identified
3. New research shows plants can shuffle and paste gene pieces to generate genetic diversity
4. Scientists decipher genetic code of biothreat pathogen
5. Chemical genetics identifies SARS inhibitors
6. 22nd amino acid synthesized and added to genetic code of e. coli bacteria
7. The impact of genetic variations on the treatment of early rheumatoid arthritis
8. Adaptive changes in the genome may provide insight into the genetics of complex disease
9. New genetic hypothesis for the cause of autism
10. Fossils reveal direct link between global warming and genetic diversity in wildlife
11. A genetic disorder yields insight into genes and cognition

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/9/2016)... -- Elevay is currently known as the ... high net worth professionals seeking travel for work   ... there is still no substitute for a face-to-face meeting. ... deal with a firm handshake. This is why wealthy ... citizenship via investment programs like those offered by the ...
(Date:4/28/2016)... 28, 2016 First quarter 2016:   ... compared with the first quarter of 2015 The gross ... M (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) , ... is unchanged, SEK 7,000-8,500 M. The operating margin for ...
(Date:4/19/2016)... , UAE, April 20, 2016 ... implemented as a compact web-based "all-in-one" system solution for ... biometric fingerprint reader or the door interface with integration ... modern access control systems. The minimal dimensions of the ... readers into the building installations offer considerable freedom of ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... ... May 26, 2016 , ... ... cuvettes are used in leading laboratories all over the globe. Their cute firefly ... addition to manufacturing awesome cuvettes, FireflySci makes spectrophotometer calibration standards that never require ...
(Date:5/25/2016)... ... May 25, 2016 , ... The Ankle ... plating options designed to address fractures of the distal tibia and fibula. This ... Acumed Ankle Plating System 3 is composed of seven plate families that span ...
(Date:5/25/2016)... ... May 25, 2016 , ... Scientists at the University of Athens ... for mesothelioma may be hampering the research that could lead to one good one. ... to read it now. , The team evaluated 98 mesothelioma patients ...
(Date:5/25/2016)... Connecticut (PRWEB) , ... May 25, 2016 , ... ... the U.S. Food and Drug Administration (FDA) has granted the company’s orphan drug ... the company’s second orphan drug designation granted by the FDA. , Spinocerebellar ...
Breaking Biology Technology:
Cached News: