User profiles for M. A. Geyer

Mark A Geyer

Professor of Psychiatry, University of California San Diego
Verified email at ucsd.edu
Cited by 67748

Human studies of prepulse inhibition of startle: normal subjects, patient groups, and pharmacological studies

DL Braff, MA Geyer, NR Swerdlow - Psychopharmacology, 2001 - Springer
… Thus, startle plasticity is an ideal candidate for translational research, as is illustrated in
this review and the two reviews that follow (Geyer et al. 2001; Swerdlow et al. 2001d, both this …

Pharmacological studies of prepulse inhibition models of sensorimotor gating deficits in schizophrenia: a decade in review

MA Geyer, K Krebs-Thomson, DL Braff… - …, 2001 - Springer
… [MA Geyer, unpublished results; but see Weiss and Feldon (2001), this issue]. In addition,
the combination of isolation rearing and post-weaning exposure to water deprivation leads to …

Sensorimotor gating and schizophrenia: human and animal model studies

DL Braff, MA Geyer - Archives of general psychiatry, 1990 - jamanetwork.com
Geyer MA: Heterogenous functions of discrete serotonergic pathways in brain, in Usdin E,
Mandell AJ (eds): New Vistas in the Biochemistry of Mental Disorders. New York, Marcel …

Habituation revisited: an updated and revised description of the behavioral characteristics of habituation

…, DF Clayton, J Colombo, G Coppola, MA Geyer… - Neurobiology of learning …, 2009 - Elsevier
The most commonly cited descriptions of the behavioral characteristics of habituation come
from two papers published almost 40 years ago [Groves, PM, & Thompson, RF (1970). …

Neural circuit regulation of prepulse inhibition of startle in the rat: current knowledge and future challenges

NR Swerdlow, MA Geyer, DL Braff - Psychopharmacology, 2001 - Springer
Rationale: Sensorimotor gating of the startle reflex can be assessed across species, using
similar stimuli to elicit similar responses. Prepulse inhibition (PPI), a measure of sensorimotor …

Gating and habituation of the startle reflex in schizophrenic patients

DL Braff, C Grillon, MA Geyer - Archives of general psychiatry, 1992 - jamanetwork.com
• Schizophrenic patients exhibit impairments in both sensorimotor gating and habituation in
a number of paradigms. Through human and animal model research, these fundamental …

Cognitive dysfunction in psychiatric disorders: characteristics, causes and the quest for improved therapy

…, B Deakin, RJ DeRubeis, B Dubois, MA Geyer… - Nature reviews Drug …, 2012 - nature.com
Studies of psychiatric disorders have traditionally focused on emotional symptoms such as
depression, anxiety and hallucinations. However, poorly controlled cognitive deficits are …

Assessing the validity of an animal model of deficient sensorimotor gating in schizophrenic patients

…, DL Braff, N Taaid, MA Geyer - Archives of general …, 1994 - jamanetwork.com
Psychiatric researchers need specific animal models to better understand the neurobiology
of schizophrenia. Prepulse inhibition (PPI), the reduction in startle produced by a prepulse …

Using an animal model of deficient sensorimotor gating to study the pathophysiology and new treatments of schizophrenia

NR Swerdlow, MA Geyer - Schizophrenia bulletin, 1998 - academic.oup.com
Certain animal models can greatly enhance our understanding of the neurobiology of
schizophrenia and can be used to predict the antipsychotic activity of compounds. Prepulse …

Dopaminergic stimulation disrupts sensorimotor gating in the rat

RS Mansbach, MA Geyer, DL Braff - Psychopharmacology, 1988 - Springer
Prepulse inhibition is a cross-species phenomenon in which reflex responses to discrete
sensory events are modified by weak prestimulation. In experiments designed to investigate the …