Schizophrenia is one of the most frequent and severe mental disorders. Among the typical symptoms of schizophrenia are auditory verbal hallucinations (AVH). Inner speech dysfunction is often incriminated in the pathogenesis of AVH. The long term aim of our research is to collect EMG and EGG data on schizophrenic patients during AVH, to examine the inner speech dysfunction hypothesis. In this me...

Monitoring one's thoughts (in the verbal modality) is thought to be critically dependent on the interaction between areas that generate and perceive inner speech in the frontal and temporal cortex, respectively. We used functional magnetic resonance imaging (fMRI) to examine the relationship between activity in these areas while the rate of inner speech generation was varied experimentally. The...

Introspection and language are the cognitive prides of humankind, but their interactions in healthy cognition remain unclear. Episodes of mind-wandering, where personal thoughts often go unnoticed for some time before being introspected, offer a unique opportunity to study the role of language in introspection. In this paper, we show that inner speech facilitates awareness of mind-wandering. In...

Thought disorder (TD) has been shown to vary in relation to negative affect. Here we examine the role internal source monitoring (iSM, i.e. ability to discriminate between inner speech and verbalized speech) in TD and whether changes in iSM performance are implicated in the affective reactivity effect (deterioration of TD when participants are asked to talk about emotionally-laden topics). Eigh...

Abstract While the idea that thinking is a form of silent self-talk goes back at least to Plato, it not immediately clear how state this thesis precisely. The aim paper spell out notion we think in language by recourse recent work on inner speech. To end, speech and overt are briefly compared. I then propose speaking be defined as mental episode substantially engages production system; underlyi...