Revisiting Persistent Neuronal Activity During Covert Spatial Attention
نویسندگان
چکیده
منابع مشابه
Lateralized electrical brain activity reveals covert attention allocation during speaking.
Speakers usually begin to speak while only part of the utterance has been planned. Earlier work has shown that speech planning processes are reflected in speakers' eye movements as they describe visually presented objects. However, to-be-named objects can be processed to some extent before they have been fixated upon, presumably because attention can be allocated to objects covertly, without mo...
متن کاملMicrosaccade dynamics during covert attention
We compared effects of covert spatial-attention shifts induced with exogenous or endogenous cues on microsaccade rate and direction. Separate and dissociated effects were obtained in rate and direction measures. Display changes caused microsaccade rate inhibition, followed by sustained rate enhancement. Effects on microsaccade direction were differentially tied to cue class (exogenous vs. endog...
متن کاملVisuomotor Origins of Covert Spatial Attention
Covert spatial attention produces biases in perceptual performance and neural processing of behaviorally relevant stimuli in the absence of overt orienting movements. The neural mechanism that gives rise to these effects is poorly understood. This paper surveys past evidence of a relationship between oculomotor control and visual spatial attention and more recent evidence of a causal link betwe...
متن کاملReviewVisuomotor Origins of Covert Spatial Attention
and oculomotor control mechanisms during scanning eye movements is of particular importance to visual neurobiologists. Just as our eyes are unable to simultaneously fixate all the elements contained within a scene, our perception Princeton, New Jersey 08544 2 Systems Neurobiology Laboratory of those elements is likewise limited. The tremendous volume of information impinging on the retina impos...
متن کاملCovert attention effects on spatial resolution.
First, we review the characteristics of endogenous (sustained) and exogenous (transient) spatial covert attention. Then we examine the effects of these two types of attention on spatial resolution in a variety of tasks, such as acuity, visual search, and texture segmentation. Both types of covert attention enhance resolution; directing attention to a given location allows us to better resolve t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Neural Circuits
سال: 2021
ISSN: 1662-5110
DOI: 10.3389/fncir.2021.679796