Some examples from energy balance model calculations indicate that: (1) solar variability has a near - global response, with the amplitude of response slightly larger over land; (2) volcanism has a proportionately larger amplitude of response over land than over ocean; and (3) the most oft - cited mode of internal variability, changes in the North Atlantic thermohaline circulation, has
a hemispheric asymmetry in response.
Observed
hemispheric asymmetry in global sea ice changes.
The cooling effect of man - made sulfates also helps explain
the hemispheric asymmetry in temperature history.
In these analyses, it is necessary to accurately account for
hemispheric asymmetry in tropospheric ozone forcing in order to infer the hemispheric aerosol forcing.
Not exact matches
This known
asymmetry has led researchers to investigate whether a similar left -
hemispheric bias could be found
in other animals, as a possible evolutionary precursor of human language.
This phenomenon has been coined HAROLD (
hemispheric asymmetry reduction
in older adults) and reflects the reorganisation of the brain as compensation for reduced brain capacity and efficiency due to age - related structural and physiological decline.
In addition, we investigated the relationship between asymmetry in intra-hemispheric intrinsic connectivity and language hemispheric dominance, including a potential effect of handedness on this relationship, thanks to an FMRI acquisition during language production from which an hemispheric functional lateralization index for language (HFLI) and a type of hemispheric dominance for language, namely leftward, ambilateral, or rightward, were derived for each individua
In addition, we investigated the relationship between
asymmetry in intra-hemispheric intrinsic connectivity and language hemispheric dominance, including a potential effect of handedness on this relationship, thanks to an FMRI acquisition during language production from which an hemispheric functional lateralization index for language (HFLI) and a type of hemispheric dominance for language, namely leftward, ambilateral, or rightward, were derived for each individua
in intra-
hemispheric intrinsic connectivity and language
hemispheric dominance, including a potential effect of handedness on this relationship, thanks to an FMRI acquisition during language production from which an
hemispheric functional lateralization index for language (HFLI) and a type of
hemispheric dominance for language, namely leftward, ambilateral, or rightward, were derived for each individual.
These findings suggest that
asymmetry in intra-
hemispheric connectivity is a variable phenotype shaped
in part by
hemispheric lateralization for language, but possibly also depending on other lateralized functions.
Asymmetry in intra-
hemispheric intrinsic connectivity, and its association with handedness and
hemispheric dominance for language, were investigated
in a sample of 290 healthy volunteers enriched
in left - handers (52.7 %).
So, like age - related overactivation generally, this age - related alteration
in hemispheric specialization, a pattern dubbed «
hemispheric asymmetry reduction
in older adults» or HAROLD (Cabeza, 2002), means that cognitive neuroscience studies of brain aging are raising new questions with broad neuroscientific implications (Figure 1A).