User profiles for Luca Iemi
 | Luca IemiColumbia University in the City of New York Verified email at cumc.columbia.edu Cited by 931 |
Spontaneous neural oscillations bias perception by modulating baseline excitability
The brain exhibits organized fluctuations of neural activity, even in the absence of tasks or
sensory input. A prominent type of such spontaneous activity is the alpha rhythm, which …
sensory input. A prominent type of such spontaneous activity is the alpha rhythm, which …
Multiple mechanisms link prestimulus neural oscillations to sensory responses
10.7554/eLife.43620.001 Spontaneous fluctuations of neural activity may explain why sensory
responses vary across repeated presentations of the same physical stimulus. To test this …
responses vary across repeated presentations of the same physical stimulus. To test this …
Spontaneous brain oscillations and perceptual decision-making
Making rapid decisions on the basis of sensory information is essential to everyday
behaviors. Why, then, are perceptual decisions so variable despite unchanging inputs? …
behaviors. Why, then, are perceptual decisions so variable despite unchanging inputs? …
Prestimulus alpha-band power biases visual discrimination confidence, but not accuracy
The magnitude of power in the alpha-band (8–13 Hz) of the electroencephalogram (EEG)
prior to the onset of a near threshold visual stimulus predicts performance. Together with other …
prior to the onset of a near threshold visual stimulus predicts performance. Together with other …
Spontaneous neural oscillations influence behavior and sensory representations by suppressing neuronal excitability
The ability to process and respond to external input is critical for adaptive behavior. Why,
then, do neural and behavioral responses vary across repeated presentations of the same …
then, do neural and behavioral responses vary across repeated presentations of the same …
[HTML][HTML] Ongoing neural oscillations influence behavior and sensory representations by suppressing neuronal excitability
The ability to process and respond to external input is critical for adaptive behavior. Why,
then, do neural and behavioral responses vary across repeated presentations of the same …
then, do neural and behavioral responses vary across repeated presentations of the same …
Moment-to-moment fluctuations in neuronal excitability bias subjective perception rather than strategic decision-making
Perceiving an external stimulus depends not only on the physical features of the stimulus,
but also fundamentally on the current state of neuronal excitability, indexed by the power of …
but also fundamentally on the current state of neuronal excitability, indexed by the power of …
Alpha oscillations shape sensory representation and perceptual sensitivity
Alpha activity (8–14 Hz) is the dominant rhythm in the awake brain and is thought to play an
important role in setting the internal state of the brain. Previous work has associated states of …
important role in setting the internal state of the brain. Previous work has associated states of …
[HTML][HTML] Pre-stimulus alpha-band phase gates early visual cortex responses
Alpha-band (8-13 Hz) oscillations have been shown to phasically inhibit perceptual reports
in human observers, yet the underlying physiological mechanism of this effect is debated. …
in human observers, yet the underlying physiological mechanism of this effect is debated. …
Pre-Stimulus Alpha-Band Phase Gates Afferent Visual Cortex Responses
The neurogenesis of alpha-band (8-13 Hz) activity has been characterized across many
different animal experiments. However, the functional role that alpha oscillations play in …
different animal experiments. However, the functional role that alpha oscillations play in …