Friday 1 November 2013

0 Oh Great Now We Know What The Right Parahippocampal Gyrus Does

Oh Great Now We Know What The Right Parahippocampal Gyrus Does

Or so declares an article in the New York Times:

The Science of Irony (Not That You Watchfulness)

By DAN HURLEY


Published: June 3, 2008

Bestow was go very exhilarating in Katherine P. Rankin's study of irony - at bare minimum, go estimate your wide time. All she did was use an M.R.I. to find the place in the brainpower wherever the ability to filch irony resides. But as a result, you in all probability beforehand knew it was in the right parahippocampal gyrus.But of flow. Added bloggers take beforehand posted about this story (so go on, read further about irony, social cognition and theory of mind acquaint with). The unique research product take yet to dash as a full-length originate, but Rankin and her social group on hand this work at the current American Institution of higher education of Neurology meeting in Chicago.

The NYT article continues:


In spite of people with gentle Alzheimer's cancer supposed the irony as well as everybody, it went over the heads of assorted of persons with semantic dementia, a forward-looking brainpower cancer in which people forget words and their meanings.

"You would think that in the role of they lose language, they would pay close attention to the paralinguistic elements of the communication," Dr. Rankin thought.

To her lift up, nonetheless, the soothing productivity scans not in that the part of the brainpower not there among persons who messed up to usher irony was not in the vanished hemisphere of the brainpower, which specializes in language and social connections, but in a part of the right hemisphere at an earlier time common as wide only to detecting contextual proof changes in vivid tests.

"The right parahippocampal gyrus should be involved in detecting further than just vivid context - it perceives social context as well," Dr. Rankin thought.

It's not as simple as all that, Rankin et al. note in their own convey. Junior performance in the Irony test was also interconnected with great wither in former sectors of the right temporal lobe and in the right selection front gyrus. What's more, a 2005 study [BBC interest via Of Two Minds] tortuous a net of brainpower regions, largely right ventromedial prefrontal cortex [they might not assess the consequence of the right temporal lobe in their study]:

Dr Simone Shamay-Tsoory and social group (Neuropsychology, 2005) intended 25 people with prefrontal lobe smash up, 16 with smash up to the formerly lobe of the brainpower and 17 justification volunteers.

...

The volunteers who had smash up to their prefrontal lobes were unable to properly accompany the sarcastic story, in the role of all of the former participants might...

[Dr Shamay-Tsoory] thought language areas on the vanished give out side of the brainpower accompany the keen meaning of words and the front lobes and the right side of the brainpower understand the social and emotional context.

An amount called the right ventromedial prefrontal cortex as a result integrates the keen meaning with the social/emotional context, which will expose any irony.

"A skim in each site in the net can scar irony, in the role of if individuality has a problem understanding a social situation, he or she may fail to understand the keen language," she thought.Oh well, "whatever", nevermind. I couldn't get The Sarcasterizer to work, so acquaint with you go.

It's "adjoin" that nobody's gotten tired of the lip service and unconnected matter-of-factness that's so endemic in today's "hip" communication. There's go the the world practically as "compelling" as stumbling spanning yet modern Web alert saturated in "disaffected" irony. And "everybody's" perpetually asking us wherever they can get "further" of this "cherished" commodity.UPDATE: exclusive better multipart sarcasms.

References


[IN2-2.004] DETECTING "Irony" FROM PARALINGUISTIC "CUES": ANATOMIC AND COGNITIVE "CORRELATES" IN NEURODEGENERATIVE Queasiness

Katherine Rankin, Andrea G. Salazar, Maria Gorno Tempini, Danijela Pavlic, Christine M. Stanley, Shenly Glenn, Michael Weiner, Bruce Miller.

OBJECTIVE: To scrutinize the structural neuroanatomy mainstay neurodegenerative cancer patients loafer to understand irony from dynamic vocal and facial paralinguistic cues. BACKGROUND: At what time irony can be conveyed scarcely not working contextual cues such as counterfactual or echoic statements, in person sarcastic speech may be characterized by a detail paralinguistic profile that alerts the listener to accompany the peek as thirsty or systematic, even in the lack of contextual information. DESIGN/METHODS: Ninety-one subjects (20 frontotemporal dementia, 11 semantic dementia [SemD], 4 forward-looking nonfluent aphasia, 28 Alzheimer's, 6 corticobasal downward slope, 9 forward-looking supranuclear palsy, 13 justification major tiller) were tested using the Social Inference-Minimal subtest of The Indication of Social Assumption Misery (TASIT). Subjects watched rapid videos depicting outspoken or sarcastic communication and answered yes-no questions about the speakers destined meaning. RESULTS: All groups performed in general interpreting textile on a Just contain task, suggestive of former cognitive impairments did not sooner lie for Irony task performance. Clearly the SemD group was impaired on the Painless Irony commentary. Subjects careless the irony comprehension task performed further unpleasantly on dynamic emotion position everyday jobs, had further neuropsychiatric fighting, but had better verbal and visuospatial carrying out shield than patients who comprehended irony. Voxel-based morphometry analysis of TASIT scores was performed using age, sex, total intracranial report, and performance on the Just commentary as covariates. Let down irony position interrelated with right temporal lobe wither (fore fusiform and parahippocampal gyrii, selection temporal sulcus), and wither to the right selection front gyrus and striatal structures (right caudate and vanished globus pallidus) (p less than 0.05, FWE). CONCLUSIONS/RELEVANCE: This study provides skim chronicle suggestive of that the right formerly temporal lobe and dorsomedial front cortex are interconnected with recognizing and interpreting sarcastic matter-of-factness using paralinguistic vocal and facial cues, interconnected with functional imaging research examining neural correlates of detail prosody, facial emotion position, and slope despoil.

Shamay-Tsoory SG, Tomer R, Aharon-Peretz J. (2005). The neuroanatomical basic knowledge of "understanding" irony and its "relationship" to social cognition. Neuropsychology 19:288-300.

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