RESUMO
We present an erratum to correct an unintentional unit conversion error in our paper, J. Opt. Soc. Am. A 29, A216 (2012), and to update Tables 1 and 2. Here we publish the revised versions of Tables 1 and 2.
RESUMO
Psychophysical data have shown that under mesopic conditions cones and rods can interact, improving color vision. Since electrophysiological data have suggested that rods of dichromatic marmosets appear to be active at higher luminance, we aimed to investigate the effect of different levels of sunlight on the foraging abilities of male dichromatic marmosets. Captive marmosets were observed under three different conditions, with respect to their performance in detecting colored food items against a green background. Compared to high and low light intensities, intermediate luminosities significantly increased detection of orange targets by male dichromats, an indication of rod intrusion.
Assuntos
Percepção de Cores/efeitos da radiação , Discriminação Psicológica/efeitos da radiação , Animais , Comportamento Animal/fisiologia , Comportamento Animal/efeitos da radiação , Callithrix , Cor , Ingestão de Alimentos/fisiologia , Ingestão de Alimentos/psicologia , Ingestão de Alimentos/efeitos da radiação , Masculino , Luz SolarRESUMO
Allergic reactions can in severe cases induce a state of circulatory shock referred to as anaphylaxis. Histamine, the primary mediator of this condition, is released from immune cells, and, therefore, anaphylaxis has so far been considered an immune system disorder. However, we here show that the glutamatergic receptor mGluR7, expressed on a subpopulation of both peripheral and spinal cord neurons, controls histamine-induced communication through calcium-dependent autoinhibition with implications for anaphylaxis. Genetic ablation of mGluR7, and thus altered regulation of histamine-sensing neurons, caused an anaphylaxis-like state in mGluR7(-/-) mice, which could be reversed by antagonizing signaling between neurons and mast cells but not by antagonizing a central itch pathway. Our findings demonstrate the vital role of nervous system control by mGluR7 in anaphylaxis and open up possibilities for preventive strategies for this life-threatening condition.