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Linguistic top-down modulation of ca...

Limongi Tirado, Roberto.

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Linguistic top-down modulation of causal perception.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Linguistic top-down modulation of causal perception./
Author:	Limongi Tirado, Roberto.
Description:	114 p.
Notes:	Advisers: Michael E. Young; Reza Habib.
Contained By:	Dissertation Abstracts International69-01B.
Subject:	Language, Linguistics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3291642
ISBN:	9780549378860

Linguistic top-down modulation of causal perception.
Limongi Tirado, Roberto.

Linguistic top-down modulation of causal perception. - 114 p.

Advisers: Michael E. Young; Reza Habib.

Thesis (Ph.D.)--Southern Illinois University at Carbondale, 2007.

The behavioral literature has reported a differentiation between bottom-up perceived causality and top-down inferred causality. In modern psychology, the bottom-up approach presupposes that the brain is biologically prepared to detect the causal structure of external events. The top-down perspective stems from the cognitive movement in which control systems organize and give structure to external environmental cues. The advent of modern technology such as functional magnetic resonance imaging and the theoretical framework of neural functional connectivities have raised new hypotheses and opened new possibilities to address the top-down versus bottom-up distinction in causality. I report recent biological and psycholinguistic work on both perceptual and linguistic representations of causality that challenges the modular view of human causal knowledge. I suggest that linguistic and sensory-perceptual representations of causal events might coexist and interact in the brain. In this sense, I propose that the central nervous system is phylogenetically determined to detect direct causal events, and that linguistic representations of causation increase the sensitivity of the system to detect a wide range of indirect causal events by modulating the spatiotemporal features of the sensory input. To test these hypotheses, I developed two experiments.

ISBN: 9780549378860Subjects--Topical Terms:

1018079
Language, Linguistics.

Linguistic top-down modulation of causal perception.
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020 $a 9780549378860
035 $a (UMI)AAI3291642
035 $a AAI3291642
040 $a UMI $c UMI
100 1 $a Limongi Tirado, Roberto. $3 1273043
245 1 0 $a Linguistic top-down modulation of causal perception.
300 $a 114 p.
500 $a Advisers: Michael E. Young; Reza Habib.
500 $a Source: Dissertation Abstracts International, Volume: 69-01, Section: B, page: 0731.
502 $a Thesis (Ph.D.)--Southern Illinois University at Carbondale, 2007.
520 $a The behavioral literature has reported a differentiation between bottom-up perceived causality and top-down inferred causality. In modern psychology, the bottom-up approach presupposes that the brain is biologically prepared to detect the causal structure of external events. The top-down perspective stems from the cognitive movement in which control systems organize and give structure to external environmental cues. The advent of modern technology such as functional magnetic resonance imaging and the theoretical framework of neural functional connectivities have raised new hypotheses and opened new possibilities to address the top-down versus bottom-up distinction in causality. I report recent biological and psycholinguistic work on both perceptual and linguistic representations of causality that challenges the modular view of human causal knowledge. I suggest that linguistic and sensory-perceptual representations of causal events might coexist and interact in the brain. In this sense, I propose that the central nervous system is phylogenetically determined to detect direct causal events, and that linguistic representations of causation increase the sensitivity of the system to detect a wide range of indirect causal events by modulating the spatiotemporal features of the sensory input. To test these hypotheses, I developed two experiments.
520 $a The first experiment determined whether periphrastic causative sentences and the verbal instruction "judge an event as causal" have similar behavioral patterns. I stated that decision proportions and reaction times in a task using either the standard verbal instruction "judge an event as causal" or the periphrastic verbal instruction "judge whether the orange ball causes the purple ball to move" were similar for both conditions.
520 $a The second experiment tested whether causal-like direct and indirect events recruit different neural tissues as a function of the linguistic modulation. By using the linguistic periphrastic and lexical structures as verbal instructions, I tested whether the periphrastic and lexical verbal instructions recruited different neural regions. When compared to the lexical instruction, I found that the periphrastic instruction elicited activity in fronto parietal regions previously reported as participating in goal-directed (top-down) attention tasks. I summarize these results as the periphrastic effect, and conclude that the linguistic top-down modulation of causal judgment might occur via cortico-striatum connections.
590 $a School code: 0209.
650 4 $a Language, Linguistics. $3 1018079
650 4 $a Psychology, Cognitive. $3 1017810
650 4 $a Psychology, Psychobiology. $3 1017821
690 $a 0290
690 $a 0349
690 $a 0633
710 2 $a Southern Illinois University at Carbondale. $b Psychology. $3 1031026
773 0 $t Dissertation Abstracts International $g 69-01B.
790 $a 0209
790 1 0 $a Habib, Reza, $e advisor
790 1 0 $a Jacobs, Eric $e committee member
790 1 0 $a Kibby, Michelle $e committee member
790 1 0 $a Young, Michael E., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3291642