Background and objectives Injection and inhalational heroin use are associated with
different levels of brain exposure to heroin and its metabolites and differences in the severity …

The incidence of chronic heroin use disorder, including overdose deaths, has reached
epidemic proportions. Here we summarise and evaluate our knowledge of the relationship …

The neuropsychological consequences of opioid abuse are particularly evident in attention,
memory and executive functioning, but it remains unclear whether these consequences …

Not reported. poorer performance on a variety of measures of neurocognition. Some of the
papers utilized traditional measures of cognitive function (eg, Kalechstein et al., 2003; …

Introduction: Cognitive impairment has been reported in drug-dependent patients under
opioid maintenance treatment. Objectives: To compare cognitive functioning in healthy …

METHOD Sixty-nine hospitalized male veterans between the ages of 18 and 35 participated
in this study. The subjects were divided into three groups: a heroin addicted group (HA), a …

Research on the neurocognitive characteristics of heroin addiction is sparse and studies that
do exist include polydrug abusers; thus, they are unable to distinguish neurocognitive effects …

To establish whether chronic opiate exposure might impair brain dopaminergic or
serotonergic function in humans, we assessed biochemical indices of monoaminergic …

Background and aims To date, the pattern of heroin-and methamphetamine-induced
cognitive impairment is unclear, especially in the Chinese population. The aim of this study …

Previous functional imaging studies on heroin addicts have focused on abnormal brain
functions based on specific tasks, while few fMRI studies concentrated on the resting-state …