Development of cortical influences on superior colliculus multisensory neurons: effects of dark-rearing
نویسندگان
چکیده
منابع مشابه
Two cortical areas mediate multisensory integration in superior colliculus neurons.
The majority of multisensory neurons in the cat superior colliculus (SC) are able to synthesize cross-modal cues (e.g., visual and auditory) and thereby produce responses greater than those elicited by the most effective single modality stimulus and, sometimes, greater than those predicted by the arithmetic sum of their modality-specific responses. The present study examined the role of cortico...
متن کاملNeonatal cortical ablation disrupts multisensory development in superior colliculus.
The ability of cat superior colliculus (SC) neurons to synthesize information from different senses depends on influences from two areas of the cortex: the anterior ectosylvian sulcus (AES) and the rostral lateral suprasylvian sulcus (rLS). Reversibly deactivating the inputs to the SC from either of these areas in normal adults severely compromises this ability and the SC-mediated behaviors tha...
متن کاملDevelopment of multisensory neurons and multisensory integration in cat superior colliculus.
The development of multisensory neurons and multisensory integration was examined in the deep layers of the superior colliculus of kittens ranging in age from 3 to 135 d postnatal (dpn). Despite the high proportion of multisensory neurons in adult animals, no such neurons were found during the first 10 d of postnatal life. Rather, all sensory-responsive neurons were unimodal. The first multisen...
متن کاملDark rearing reveals the mechanism underlying stimulus size tuning of superior colliculus neurons.
Neurons in the superficial layers of the midbrain superior colliculus (SC) exhibit distinct tuning properties for visual stimuli, but, unlike neurons in the geniculocortical visual pathway, most respond best to visual stimuli that are smaller than the classical receptive field (RF). The mechanism underlying this size selectivity may depend on the number and pattern of feedforward retinal inputs...
متن کاملAn Emergent Model of Multisensory Integration in Superior Colliculus Neurons
Neurons in the cat superior colliculus (SC) integrate information from different senses to enhance their responses to cross-modal stimuli. These multisensory SC neurons receive multiple converging unisensory inputs from many sources; those received from association cortex are critical for the manifestation of multisensory integration. The mechanisms underlying this characteristic property of SC...
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ژورنال
عنوان ژورنال: European Journal of Neuroscience
سال: 2013
ISSN: 0953-816X
DOI: 10.1111/ejn.12182