Browsing by Author "Elman, Igor"
Now showing items 1-8 of 8
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Effects of Cortisol and Cocaine on Plasma Prolactin and Growth Hormone Levels in Cocaine-Dependent Volunteers
Elman, Igor; Lukas, Scott E. (Elsevier, 2005)In rodents, corticosterone (cortisol in humans) facilitates cocaine self-administration purportedly via enhancement of dopaminergic activity in the brain. This study sought to assess central dopaminergic effects of cortisol ... -
Effects of Perceived Cocaine Availability on Subjective and Objective Responses to the Drug
Yamamoto, Rinah Tikvah; Karlsgodt, Katherine H; Rott, David; Lukas, Scott E.; Elman, Igor (BioMed Central, 2007)Rationale: Several lines of evidence suggest that cocaine expectancy and craving are two related phenomena. The present study assessed this potential link by contrasting reactions to varying degrees of the drug's perceived ... -
Gender Differences in the Motivational Processing of Babies Are Determined by Their Facial Attractiveness
Yamamoto, Rinah Tikvah; Ariely, Dan; Chi, Won; Langleben, Daniel D.; Elman, Igor (Public Library of Science, 2009)Background: This study sought to determine how esthetic appearance of babies may affect their motivational processing by the adults. Methodology and Principal Findings: Healthy men and women were administered two ... -
Gender Differences in the Motivational Processing of Facial Beauty
Levy, Boaz; Ariely, Dan; Mazar, Nina; Chi, Won; Lukas, Scott; Elman, Igor (Elsevier, 2008)Gender may be involved in the motivational processing of facial beauty. This study applied a behavioral probe, known to activate brain motivational regions, to healthy heterosexual subjects. Matched samples of men and women ... -
Neurological Soft Signs in Individuals with Pathological Gambling
Elman, Igor; Gurvits, Tamara V.; Tschibelu, Evelyne; Spring, Justin Douglas; Lasko, Natasha B.; Pitman, roger k (Public Library of Science, 2013)Increased neurological soft signs (NSSs) have been found in a number of neuropsychiatric syndromes, including chemical addiction. The present study examined NSSs related to perceptual-motor and visuospatial processing in ... -
Probing reward function in posttraumatic stress disorder: Expectancy and satisfaction with monetary gains and losses
Hopper, James W.; Pitman, roger Keith; Su, Zhaohui; Heyman, Gene Morris; Lasko, Natasha B.; Macklin, Michael L.; Orr, Scott P.; Lukas, Scott E.; Elman, Igor (Elsevier BV, 2008)Background: Posttraumatic stress disorder (PTSD) may be associated with dysfunctional reward processing. The present study assessed for such dysfunction in both the expectancy and outcome phases of reward processing. ... -
Psychosocial Stress and the Duration of Cocaine Use in Non-treatment Seeking Individuals with Cocaine Dependence
Karlsgodt, Katherine H.; Lukas, Scott; Elman, Igor (Taylor & Francis, 2003)The aim of this study was to explore a potential link between psychosocial stress and cocaine dependence among 36 non-treatment-seeking individuals enrolled in a brain imaging protocol. Stress was assessed using computerized ... -
Yohimbine-Induced Amygdala Activation in Pathological Gamblers: A Pilot Study
Elman, Igor; Becerra, Lino Renan; Tschibelu, Evelyne; Yamamoto, Rinah Tikvah; George, Edward E.; Borsook, David (Public Library of Science, 2012)Rationale and Objectives: There is evidence that drug addiction is associated with increased physiological and psychological responses to stress. In this pilot functional magnetic resonance imaging (fMRI) study we assessed ...