Objective: To provide an overview of startle reflex methodologies applied to the examination
of emotional and motivational states in humans and to review the findings in different forms …

Negative symptoms have long been recognized as a central feature of the phenomenology
of schizophrenia, dating back to the early descriptions by Kraepelin and Bleuler. Over the …

BACKGROUND: Anhedonia, the inability to experience pleasure, is a major endophenotype
of depression. In addition to this, it is an important clinical feature of schizophrenia and …

Background In schizophrenia and major depressive disorder, anhedonia (a loss of capacity
to feel pleasure) had differently been considered as a premorbid personological trait or as a …

This article reviews empirical studies of affective traits in individuals with schizophrenia
spectrum disorders, population-based investigations of vulnerability to psychosis, and …

Although several valid measures of pleasure and anhedonia exist, there is a relative paucity
of measures that adequately assess pleasure for social interactions. The Anticipatory and …

Social anhedonia has been employed in psychometric high-risk studies to identify putative
schizotypes. To date, this research has focused almost exclusively on college samples. The …

Evidence suggests that individuals with schizophrenia demonstrate emotion-processing
deficits. However, the nature and extent of emotion abnormalities in individuals considered …

This research examined whether facets of schizotypy were differentially related to cognitive
control and emotion-processing traits. In a confirmatory factor analysis (N= 261), a 3-factor …

While social anhedonia is a promising indicator of vulnerability to schizophrenia, it remains
uncertain whether anhedonia is a core feature of schizotypy or merely a secondary …