A review of lateralization of spatial functioning in nonhuman primates

Oleksiak, Anna; Postma, Albert; Ham, Ineke J. M. van der; Klink, P. Christiaan; Wezel, R.J.A. van

doi:10.1016/j.brainresrev.2010.11.002

Cited by 24 publications

(12 citation statements)

References 182 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a long time, lateralization was considered unique to humans, but recently, it has become clear that lateralization is a fundamental characteristic of the organization of the brain and behavior in vertebrates [27] and invertebrates [28]. Not only is lateralization common to vertebrates, but there also appears to be a common pattern of lateralization, which has been retained amongst all of the major groups of vertebrates [29,30,31]. Lateralization of the brain and behavior usually refers to the fact that the hemispheres of the brain control behavior differentially.…”

Section: Perspective Of Acupoint Lateralitymentioning

confidence: 99%

Acupuncture Point Laterality: Evidence and Perspective

Wang

Litscher²,

Tian

et al. 2014

Integr Med Int

View full text Add to dashboard Cite

Background: In the Yellow Emperor Neijing, it is stated that ‘if someone has a disease related with the left side, the treatment point is on the right side, and vice versa' [Unschuld PU: Huang Di Nei Jing Su Wen, 2003], which emphasizes that specific lateral-side acupoint stimulation might lead to therapeutic advantages under specific conditions. Methods: We summarize the different effects resulting from namesake acupoint stimulation referred to as acupoint laterality. In this short review, the evidence of acupoint lateralization from Neiguan (PC6), Hegu (LI4), and Quchi (LI11) is discussed. Results and Conclusion: Investigations indicate that acupuncture at the contralateral side of PC6 has different effects on heart rate variability (HRV), which means that PC6 has laterality. However, such a difference in HRV could not be observed when the same stimulation was applied to both sides of LI4, although the difference in blood perfusion distribution was confirmed exactly. Considering the results from PC6, we hypothesize that acupoint laterality might be related to acupoint specificity. Although the evidence is not clear, our results indicate that in patients with hypertension, different-side LI11 stimulation can also produce different results, which might indicate that acupoint laterality is associated with the functional state of subjects. The perspective of acupoint lateralization is also preliminarily discussed in this review. i 2014 S. Karger AG, Basel

show abstract

Section: Perspective Of Acupoint Lateralitymentioning

confidence: 99%

Acupuncture Point Laterality: Evidence and Perspective

Wang

Litscher²,

Tian

et al. 2014

Integr Med Int

View full text Add to dashboard Cite

show abstract

“…Prior studies employing reading-related tasks have shown reduced activation in parietal regions of people with dyslexia [96], [97], [98], so it may be that individuals with dyslexia can compensate via parietal hyperactivation for simple tasks (as in the present study), but not for more demanding reading tasks. Given the evidence of right-hemisphere specialization for visuo-spatial functions from both lesion studies [99] and imaging studies (e.g., [100]), the visuo-spatial nature of the present study may also explain why activation differences between groups were predominantly right-lateralized.…”

Section: Discussionmentioning

confidence: 70%

Atypical Balance between Occipital and Fronto-Parietal Activation for Visual Shape Extraction in Dyslexia

et al. 2013

View full text Add to dashboard Cite

Reading requires the extraction of letter shapes from a complex background of text, and an impairment in visual shape extraction would cause difficulty in reading. To investigate the neural mechanisms of visual shape extraction in dyslexia, we used functional magnetic resonance imaging (fMRI) to examine brain activation while adults with or without dyslexia responded to the change of an arrow’s direction in a complex, relative to a simple, visual background. In comparison to adults with typical reading ability, adults with dyslexia exhibited opposite patterns of atypical activation: decreased activation in occipital visual areas associated with visual perception, and increased activation in frontal and parietal regions associated with visual attention. These findings indicate that dyslexia involves atypical brain organization for fundamental processes of visual shape extraction even when reading is not involved. Overengagement in higher-order association cortices, required to compensate for underengagment in lower-order visual cortices, may result in competition for top-down attentional resources helpful for fluent reading.

show abstract

“…; Oleksiak et al. ). One well‐documented and functionally significant correlate of directional brain morphological asymmetry is language (Sun and Walsh ; Corballis ; Keller et al.…”

Section: Directional Asymmetry (Da)mentioning

confidence: 98%

“…, ; Oleksiak et al. ). As evolution would tend to favor the most efficient neural network, it should then theoretically promote a higher degree of intrahemispherical task completion and, correspondingly, a decrease in cross‐hemisphere interaction for accomplishing routine tasks.…”

Section: Directional Asymmetry (Da)mentioning

confidence: 99%

Evolutionary and developmental implications of asymmetric brain folding in a large primate pedigree

2016

View full text Add to dashboard Cite

Bilateral symmetry is a fundamental property of the vertebrate central nervous system. Local deviations from symmetry provide various types of information about the development, evolution and function of elements within the CNS, especially the cerebral hemispheres. Here, we quantify the pattern and extent of asymmetry in cortical folding within the cerebrum of Papio baboons and assess the evolutionary and developmental implications of the findings. Analyses of directional asymmetry show a population-level trend in length measurements indicating that baboons are genetically predisposed to be asymmetrical, with the right side longer than the left in the anterior cerebrum while the left side is longer than the right posteriorly. We also find a corresponding bias to display a right frontal petalia (overgrowth of the anterior pole of the cerebral cortex on the right side). By quantifying fluctuating asymmetry, we assess canalization of brain features and the susceptibility of the baboon brain to developmental perturbations. We find that features are differentially canalized depending on their ontogenetic timing. We further deduce that development of the two hemispheres is to some degree independent. This independence has important implications for the evolution of cerebral hemispheres and their separate specialization. Asymmetry is a major feature of primate brains and is characteristic of both brain structure and function.

show abstract

A review of lateralization of spatial functioning in nonhuman primates

Cited by 24 publications

References 182 publications

Acupuncture Point Laterality: Evidence and Perspective

Acupuncture Point Laterality: Evidence and Perspective

Atypical Balance between Occipital and Fronto-Parietal Activation for Visual Shape Extraction in Dyslexia

Evolutionary and developmental implications of asymmetric brain folding in a large primate pedigree

Contact Info

Product

Resources

About