Graded Neuronal Modulations Related to Visual Spatial Attention
نویسندگان
چکیده
منابع مشابه
Graded Neuronal Modulations Related to Visual Spatial Attention.
UNLABELLED Studies of visual attention in monkeys typically measure neuronal activity when the stimulus event to be detected occurs at a cued location versus when it occurs at an uncued location. But this approach does not address how neuronal activity changes relative to conditions where attention is unconstrained by cueing. Human psychophysical studies have used neutral cueing conditions and ...
متن کاملNeuronal Modulations in Visual Cortex Are Associated with Only One of Multiple Components of Attention
Neuronal signals related to visual attention are found in widespread brain regions, and these signals are generally assumed to participate in a common mechanism of attention. However, the behavioral effects of attention in detection can be separated into two distinct components: spatially selective shifts in either the criterion or sensitivity of the subject. Here we show that a paradigm used b...
متن کاملDissecting Spatial Visual Attention
it has been recognized that at least two forms of spatial attention can be found in vision. For example, Wundt (1902) observed that attention could be involuntary or voluntary. A variety of distinctions have been made that more or less correspond to Wundt’s distinction, including goal-directed attention versus stimulus-driven capture and endogenous attention versus exogenous attention. the term...
متن کاملNeuronal responses related to visual recognition.
To analyse the neural basis of long-term memory, recordings were made from single neurons in monkeys performing a visual recognition task of the type impaired in anterograde amnesia in man. Each visual stimulus was shown twice per day, once as novel, and after 0 to 17 other intervening items in the recognition task, on a second trial, as familiar, when the monkey could lick to obtain fruit juic...
متن کاملAnticipatory and stimulus-evoked blood oxygenation level-dependent modulations related to spatial attention reflect a common additive signal.
Covert attention is associated with prestimulus blood oxygenation level-dependent (BOLD) modulations in visual cortex. In some situations, this preparatory activity can predict how well human subjects will perceive upcoming visual objects. Preparatory activity may mediate this behavioral effect by affecting the stimulus-evoked response, but the relationship between preparatory and stimulus-evok...
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: The Journal of Neuroscience
سال: 2016
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.0192-16.2016