Specifically, we tested the hypothesis that attention is not uniformly impaired in these individuals.
This being, to our knowledge, the first case of association between CH and ICAD, and considering the available current literature [8, 13], we believe that this hypothesis deserves attention and requires further studies to be confirmed.
The so-called hygiene hypothesis gained attention when Strachan identified an inverse relationship between family size and allergic diseases and suggested that childhood infections have a protective effect for allergy (Strachan 1989).
These findings may support the hypothesis that attention amplifies the output of parvocellular channels, which are sensitive to low temporal and high spatial frequencies [23] and to stimuli at isoluminance [24].
Instead, the results support the hypothesis that attention facilitates the binding of a sound to the attended visual event regardless of its timing relative to that of the sounds.
Before that, the field was dominated by the lipid hypothesis - attention was paid especially to cholesterol in the blood as a risk factor.
This hypothesis warrants attention in future studies.
Cuing tasks provide a second line of evidence in support of the hypothesis that attention flows among linked items.
According to this hypothesis, perceptual spatial attention plays no role in maintaining the FoA's prioritized state.
These results, taken together, provide strong support for the hypothesis that attention spreads among items linked by Gestalt grouping cues, enhancing the impact of flankers linked to a target.
Eriksen and Eriksen (1974), for example, showed that nearby flankers generate more interference than do flankers that are farther away, supporting the hypothesis that attention flows among items linked by proximity (see also Baylis & Driver, 1992).
