Results 71 to 80 of about 909 (144)

Distributed representations of the "preparatory set" in the frontal oculomotor system: a TMS study

BMC Neuroscience, 2008
Background The generation of saccades is influenced by the level of "preparatory set activity" in cortical oculomotor areas. This preparatory activity can be examined using the gap-paradigm in which a temporal gap is introduced between the disappearance ...
Kömpf D, Lencer R, Sprenger A, Nagel M, Siebner H, Heide W   +5 more
doaj   +1 more source

Time-frequency analysis.

, 2016
A Event-related spectral perturbations (ERSPs) time-locked to target onset are plotted for the Cz electrode for antisaccades and prosaccades and a panel for significant ERSP differences between Saccade tasks is displayed on the right side.
Frédéric Isel (3342002), Karine Doré-Mazars (326269), Xavier Aparicio (3342005), Karin Heidlmayr (358109)   +3 more
core   +1 more source

Effect of age on the latency of three types of saccade.

, 2016
Prosaccades: A,B; correct antisaccades: C,D; error prosaccades from antisaccade tasks: E, F. Control (CON A,C,E) and Cerebral Malaria (CM B,D,F) groups.
Emme Mbale (3233211), Gabriela Czanner (3233217), Macpherson Malewa (3233214), Paul C. Knox (127914), Simon P. Harding (587115), Ian J. C. MacCormick (512819)   +5 more
core   +1 more source

Saccade-locked ERPs in the mixed task session on the three midline electrodes (Fz, Cz, Pz).

, 2016
The left panel shows the main effect of Saccade task and the right panel the difference waves (antisaccades minus prosaccades) in the two groups. The grey bar marks the time window used for investigating the presaccadic positivity (PSP) component.
Frédéric Isel (3342002), Karine Doré-Mazars (326269), Xavier Aparicio (3342005), Karin Heidlmayr (358109)   +3 more
core   +1 more source

Pupil dynamics reveal preparatory processes in the generation of pro-saccades and anti-saccades in open skill sports athletes

Biology of Sport
This study investigated pupil dynamics to establish a physiological index of mental processes associated with executive functioning, enabling objective evaluation of cognitive load during training to improve understanding of cognitive control in sport ...
Jui-Tai Chen, Yi-Hsuan Chang, Cesar Barquero, Chin-An Wang   +3 more
doaj   +1 more source

Catechol-O-methyltransferase (COMT) val158met genotype is associated with BOLD response as a function of task characteristic

, 2008
The catechol-O-methyltransferase ( COMT) val(158)met single nucleotide polymorphism (rs4680) has been shown to be associated with brain activation during a number of neurocognitive and emotional tasks.
John Powell, Steven C R Williams, Ettinger, Ulrich, Olurotimi Zedomi, Powell, John, Williams, Steven C. R., Sonija Luzi, Williams, Steven C. R.; id_orcid, Veena Kumari, Ulrich Ettinger, David A Collier, Tanja M Michel, Kumari, Veena, Michel, Tanja M., Zedomi, Olurotimi, Collier, David A., Luzi, Sonija, Michel, Tanja Maria, Powell, John; id_orcid   +18 more
core   +1 more source

The global effect for antisaccades

, 2012
In the global effect, prosaccades are deviated to a position intermediate between two targets or between a distractor and a target, which may reflect spatial averaging in the collicular map.
Viswanathan, Jayalakshmi
core   +1 more source

Response suppression produces a switch-cost for spatially compatible saccades [PDF]

, 2019
Executive function supports the rapid alternation between tasks for online reconfiguration of attentional and motor goals. The oculomotor literature has found that a prosaccade (i.e., saccade to veridical target location) preceded by an antisaccade (i.e.,
Fadel, Mohammed A, Tari, Benjamin, Heath, Matthew   +2 more
core   +1 more source

Task‐evoked pupillary responses as potential biomarkers of mild cognitive impairment

Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring
INTRODUCTION Eye movement alterations are effective biomarkers for Alzheimer's disease (AD). This study examines task‐evoked pupillary responses (TEPRs) as potential biomarkers of the mild cognitive impairment (MCI), the symptomatic stage preceding AD ...
Julius Opwonya, Kahye Kim, Kun Ho Lee, Joong Il Kim, Jaeuk U. Kim   +4 more
doaj   +1 more source

Primate Antisaccades. I. Behavioral Characteristics

, 1998
Amador, Nelly, Madeleine Schlag-Rey, and John Schlag. Primate antisaccades. I. Behavioral characteristics. J. Neurophysiol. 80: 1775–1786, 1998. The antisaccade task requires a subject to make a saccade to an unmarked location opposite to a flashed ...
John Schlag, Nelly Amador, Madeleine Schlag-Rey   +2 more
core   +1 more source