Several theories propose that one of the core functions of inner speech (IS) is to support subjects in the completion of cognitively effortful tasks, especially those involving executive functions (EF). In this paper we focus on two populations who notoriously encounter difficulties in performing EF tasks, namely, people diagnosed with schizophrenia who experience auditory verbal hallucinations (Sz-AVH) and people within the Autism Spectrum Conditions (ASC). We focus on these two populations because they represent two different ways in which IS can (...) fail to help in EF tasks, which can be illustrative for other mental conditions. First, we review the main components of EF (Section 1). Then we explain the functions that IS is taken to perform in the domain of EF (Section 2) and review the evidence concerning problems about EF in the two populations of our study: Sz-AVH (Section 3) and ASC (Section 4). After this we further detail our account about what a properly functioning IS can do for both populations and how different IS profiles may impact EF performance: in the case of Sz-AVH, the uncontrolled and intrusive character of IS negatively affects EF performance, whereas in ASC, EF is not sufficiently supported by IS, given the tendency in this population to present a diminished use of IS (Section 5). We finally briefly discuss Attention Deficit/Hyperactivity Disorder (ADHD) and Developmental Language Disorders (DLD). (shrink)

Inner speech travels under many aliases: the inner voice, verbal thought, thinking in words, internal verbalization, “talking in your head,” the “little voice in the head,” and so on. It is both a familiar element of first-person experience and a psychological phenomenon whose complex cognitive components and distributed neural bases are increasingly well understood. There is evidence that inner speech plays a variety of cognitive roles, from enabling abstract thought, to supporting metacognition, memory, and executive function. One active area of (...) controversy concerns the relation of inner speech to auditory verbal hallucinations in schizophrenia, with a common proposal being that sufferers of AVH misidentify their own inner speech as being generated by someone else. Recently, researchers have used artificial intelligence to translate the neural and neuromuscular signatures of inner speech into corresponding outer speech signals, laying the groundwork for a variety of new applications and interventions. (shrink)

This entry provides an overview of theories of concepts that is organized around five philosophical issues: (1) the ontology of concepts, (2) the structure of concepts, (3) empiricism and nativism about concepts, (4) concepts and natural language, and (5) concepts and conceptual analysis.

Mental imagery (varieties of which are sometimes colloquially refered to as “visualizing,” “seeing in the mind's eye,” “hearing in the head,” “imagining the feel of,” etc.) is quasi-perceptual experience; it resembles perceptual experience, but occurs in the absence of the appropriate external stimuli. It is also generally understood to bear intentionality (i.e., mental images are always images of something or other), and thereby to function as a form of mental representation. Traditionally, visual mental imagery, the most discussed variety, was thought (...) to be caused by the presence of picturelike representations (mental images) in the mind, soul, or brain, but this is no longer universally accepted. (shrink)

After a long time, people are still debating over “Cartesian-like Dualism” (CLD), i.e. towards the separation of “res-extensa” from “res-cogitans”. Since we suspect that this is due to a general attraction of mind towards the darkness of metaphysics, we have investigated the mental origin of this attraction. In human mind, we can envisage three different functional levels emerging one from the other like in a Matrioska; the three levels cause the arousal of as many forms of “dualisms”: 1) The 1st-level (...) corresponds to the “Dual-state” of mind, an archetypic dualism made of Unconscious Mind (UM, the domain of biophysical/biochemical signals) and Conscious Mind (CM, the domain of thoughts, images and sounds), genetically committed to reciprocal and fruitful interactions. 2) the 2nd-level corresponds to “Double-perspective” dualism; it emerges from CM’s splitting into two opposite perspectives: the 1st-order perspective (1PP) (subjective, emotional, Self-oriented, etc.) and the 3rd-order perspective (3PP) (rational, objective, Self-detached, etc.), that are in psychological contraposition. During individual growth, Ego-sense installs in CM with the illusion of possessing FW, and dominates 1PP. Conversely, 3PP is typically interested in scientific argumentations and investigations; so, 3PP confutes 1PP’s convictions on scien-tific bases (e.g. 1PP’s conviction that the binomial Ego-FW is real). Yet, on the one hand, 3PP hasn’t got a scientific alternative to explain “who we really are”, on the other hand, 1PP exhibits a great success in everyday life cognition. Then, we necessarily step over the dualism of the 3rd-level, “Cartesian-like Dualism” (CLD). The emotional origin of this CLD holds back 1PP’s trick to claim its supremacy over 3PP. (shrink)

Words appear to be denizens of the external world or, at any rate, not wholly mental, unlike our pains. It is the norm for philosophical accounts of words to reflect this appearance by offering various socio-cultural conditions to which an adequate account of wordhood must cleave. The paper argues, to the contrary, that an adequate account of word phenomena need avert to nothing other than individual psychology along with potential external factors that in-themselves do not count as linguistic. My principal (...) leverage will be that, by everyone’s lights, whatever words are, they are syntactically combinable and possess structural properties. But such conditions cannot be externally realised; instead, they are aspects of our internally realised cognitive capacity. It will also be argued, however, that the position is consistent with much of our common lore about words, albeit sans an externalist linguistic ontology. (shrink)

Inner speech has been shown to vary in form along several dimensions. Along condensation, condensed inner speech forms have been described, that are supposed to be deprived of acoustic, phonological and even syntactic qualities. Expanded forms, on the other extreme, display articulatory and auditory properties. Along dialogality, inner speech can be monologal, when we engage in internal soliloquy, or dialogal, when we recall past conversations or imagine future dialogs involving our own voice as well as that of others addressing us. (...) Along intentionality, it can be intentional (when we deliberately rehearse material in short-term memory) or it can arise unintentionally (during mind wandering). We introduce the ConDialInt model, a neurocognitive predictive control model of inner speech that accounts for its varieties along these three dimensions. ConDialInt spells out the condensation dimension by including inhibitory control at the conceptualization, formulation or articulatory planning stage. It accounts for dialogality, by assuming internal model adaptations and by speculating on neural processes underlying perspective switching. It explains the differences between intentional and spontaneous varieties in terms of monitoring. We present an fMRI study in which we probed varieties of inner speech along dialogality and intentionality, to examine the validity of the neuroanatomical correlates posited in ConDialInt. Condensation was also informally tackled. Our data support the hypothesis that expanded inner speech recruits speech production processes down to articulatory planning, resulting in a predicted signal, the inner voice, with auditory qualities. Along dialogality, covertly using an avatar’s voice resulted in the activation of right hemisphere homologs of the regions involved in internal own-voice soliloquy and in reduced cerebellar activation, consistent with internal model adaptation. Switching from first-person to third-person perspective resulted in activations in precuneus and parietal lobules. Along intentionality, compared with intentional inner speech, mind wandering with inner speech episodes was associated with greater bilateral inferior frontal activation and decreased activation in left temporal regions. This is consistent with the reported subjective evanescence and presumably reflects condensation processes. Our results provide neuroanatomical evidence compatible with predictive control and in favor of the assumptions made in the ConDialInt model. (shrink)

Despite the popularity of research on intrapersonal communication across many disciplines, there has been little attention devoted to the factors that might account for individual differences in talking to oneself. In this paper, I explore two possible explanations for who people might differ in the frequency of their self-talk. According to the “social isolation” hypothesis, spending more time alone or having socially-isolating experiences will be associated with increased self-talk. According to the “cognitive disruption” hypothesis, having self-related experiences that are cognitively (...) disruptive will be associated with increased self-talk frequency. Several studies using the Self-Talk Scale (Brinthaupt, Hein, & Kramer, 2009) are pertinent to these hypotheses. Results indicate moderate support for the social isolation hypothesis and strong support for the cognitive disruption hypothesis. I conclude the paper with a wide range of implications for future research on individual differences in self-talk and other kinds of intrapersonal communication. (shrink)

Theorists have found it difficult to reconcile the unity of inner speech as a mental state kind with the diversity of its manifestations. I argue that existing views concerning the content of inner speech fail to accommodate both of these features because they mistakenly assume that its content is to be found in the ‘speech processing hierarchy’, which includes semantic, syntactic, phonemic, phonetic, and articulatory levels. Upon rejecting this assumption, I offer a position on which the content of inner speech (...) is determined by voice processing, of which speech processing is but one component. The resulting view does justice to the idea that inner speech is a motley assortment of episodes that nevertheless form a kind. (shrink)