Infantile stimulation induces brain lateralization in rats

Science ◽  
1978 ◽  
Vol 201 (4361) ◽  
pp. 1150-1152 ◽  
Author(s):  
V. Denenberg ◽  
J Garbanati ◽  
D. Sherman ◽  
D. Yutzey ◽  
R Kaplan
Keyword(s):  
Brain Lateralization ◽  
Infantile Stimulation

Prosody and Brain Lateralization

1988 ◽  
Vol 45 (3) ◽  
pp. 338 ◽  
Author(s):  
Elliott D. Ross
Keyword(s):  
Brain Lateralization

scholarly journals Intraspecific competition and coordination in the evolution of lateralization

2008 ◽  
Vol 364 (1519) ◽  
pp. 861-866 ◽  
Author(s):  
Stefano Ghirlanda ◽  
Elisa Frasnelli ◽  
Giorgio Vallortigara
Keyword(s):  
Evolutionarily Stable Strategy ◽  
Population Level ◽  
Neural Circuitry ◽  
Brain Lateralization ◽  
Stable Strategy ◽  
Cooperative Interactions ◽  
Strategic Factors ◽  
Left And Right ◽  
Predator Interactions ◽  
Evolutionarily Stable

Recent studies have revealed a variety of left–right asymmetries among vertebrates and invertebrates. In many species, left- and right-lateralized individuals coexist, but in unequal numbers (‘population-level’ lateralization). It has been argued that brain lateralization increases individual efficiency (e.g. avoiding unnecessary duplication of neural circuitry and reducing interference between functions), thus counteracting the ecological disadvantages of lateral biases in behaviour (making individual behaviour more predictable to other organisms). However, individual efficiency does not require a definite proportion of left- and right-lateralized individuals. Thus, such arguments do not explain population-level lateralization. We have previously shown that, in the context of prey–predator interactions, population-level lateralization can arise as an evolutionarily stable strategy when individually asymmetrical organisms must coordinate their behaviour with that of other asymmetrical organisms. Here, we extend our model showing that populations consisting of left- and right-lateralized individuals in unequal numbers can be evolutionarily stable, based solely on strategic factors arising from the balance between antagonistic (competitive) and synergistic (cooperative) interactions.

constraints from handedness on the evolution of brain lateralization

2005 ◽  
Vol 28 (4) ◽  
pp. 603-604 ◽  
Author(s):  
maryanne martin ◽  
gregory v. jones
Keyword(s):  
Evolutionarily Stable Strategy ◽  
Brain Lateralization ◽  
Stable Strategy ◽  
Evolutionarily Stable

can we understand brain lateralization in humans by analysis in terms of an evolutionarily stable strategy? the attempt to demonstrate a link between lateralization in humans and that in, for example, fish appears to hinge critically on whether the isomorphism is viewed as a matter of homology or homoplasy. consideration of human handedness presents a number of challenges to the proposed framework.

Orientation and lateralized cue use in pigeons navigating a large indoor environment

2002 ◽  
Vol 205 (12) ◽  
pp. 1795-1805 ◽  
Author(s):  
Helmut Prior ◽  
Frank Lingenauber ◽  
Jörg Nitschke ◽  
Onur Güntürkün
Keyword(s):  
Reference Frame ◽  
Brain Lateralization ◽  
Spatial Cues ◽  
Brain Hemisphere ◽  
Brain Hemispheres ◽  
Left Brain ◽  
Right Brain ◽  
Starting Location ◽  
The Right ◽  
Global Reference Frame

SUMMARY The pigeon's use of different visuo-spatial cues was studied under controlled laboratory conditions that simulated analogous aspects of a homing situation. The birds first learned the route to a goal that was not visible from the starting location, but became visible as it was approached. Birds could orientate within a mainly geometric global reference frame, using prominent landmarks within their range, or by `piloting' along local cues. After learning the route, the birds were tested from familiar and unfamiliar release points, and several aspects of the available cues were varied systematically. The study explored the contribution of the left and right brain hemispheres by performing tests with the right or left eye occluded. The results show that pigeons can establish accurate bearings towards a non-visible goal by using a global reference frame only. Furthermore, there was a peak of searching activity at the location predicted by the global reference frame. Search at this location and directedness of the bearings were equally high with both right and left eye, suggesting that both brain hemispheres have the same competence level for these components of the task. A lateralization effect occurred when prominent landmarks were removed or translated. While the right brain hemisphere completely ignored such changes,the left brain hemisphere was distracted by removal of landmarks. After translation of landmarks, the left but not the right brain hemisphere allocated part of the searching activity to the site predicted by the new landmark position. The results show that a mainly geometric global visual reference frame is sufficient to determine exact bearings from familiar and unfamiliar release points. Overall, the results suggest a model of brain lateralization with a well-developed global spatial reference system in either hemisphere and an extra capacity for the processing of object features in the left brain.

Brain lateralization assessed by fMRI and dichotic listening

NeuroImage ◽  
2009 ◽  
Vol 47 ◽  
pp. S164
Author(s):  
HM Veenstra ◽  
M Ragnehed ◽  
M Hällgren ◽  
P Lundberg ◽  
M Engström
Keyword(s):  
Dichotic Listening ◽  
Brain Lateralization

Sexual dimorphism and brain lateralization impact behavioral and histological outcomes following hypoxia–ischemia in P3 and P7 rats

Neuroscience ◽  
2015 ◽  
Vol 290 ◽  
pp. 581-593 ◽  
Author(s):  
E.F. Sanches ◽  
N. Arteni ◽  
F. Nicola ◽  
D. Aristimunha ◽  
C.A. Netto
Keyword(s):  
Sexual Dimorphism ◽  
Brain Lateralization ◽  
Hypoxia Ischemia
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