BACKGROUND:: Cognitive control deficits are pervasive in individuals with schizophrenia
(SZ) and are reliable predictors of functional outcome, but the specificity of these deficits and …

Intra-individual variability (IIV) has received recent attention as an indicator of the stability of
cognitive functioning that may outperform mean performance in reflecting putative …

BACKGROUND: Inhibitory measures such as prepulse inhibition of the acoustic startle reflex
(PPI) and event related potential P50 suppression have been widely reported to show …

Psychotic illness is associated with cognitive control deficits and abnormal recruitment of
neural circuits subserving cognitive control. It is unclear to what extent this dysfunction …

The stop-signal paradigm is increasingly being used as a probe of response inhibition in
basic and clinical neuroimaging research. The critical feature of this task is that a cued …

BACKGROUND: Deficits in schizophrenia patients and their first-degree relatives have been
reported in prepulse inhibition (PPI), a phenomenon that measures an early stage of …

Background: Schizophrenics show deficits in sensorimotor gating, as measured by prepulse
inhibition of acoustic startle (PPI). The goal of this investigation is to further characterize PPI …

Functional magnetic resonance imaging (fMRI) was used to investigate the hypothesis that
schizophrenia is associated with a dysfunction of prefrontal brain regions during motor …

Prepulse inhibition (PPI) of the startle response, a cross-species measure of sensorimotor
gating, provides a valuable tool to study the known inability of a large proportion of …

The stop signal task (stop task) is designed to assess inhibitory control and is a frequently
used research tool in clinical disorders such as ADHD and schizophrenia. Previous methods …