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Titolo:
The measurement of regional cerebral blood flow during the complex cognitive task of meditation: a preliminary SPECT study
Autore:
Newberg, A; Alavi, A; Baime, M; Pourdehnad, M; Santanna, J; dAquid, E;
Indirizzi:
Univ Penn, Med Ctr, Dept Radiol, Div Nucl Med, Philadelphia, PA 19104 USA Univ Penn Philadelphia PA USA 19104 Nucl Med, Philadelphia, PA 19104 USA Univ Penn, Med Ctr, Dept Med, Philadelphia, PA 19104 USA Univ Penn Philadelphia PA USA 19104 Dept Med, Philadelphia, PA 19104 USA Univ Penn, Med Ctr, Dept Biostat & Epidemiol, Philadelphia, PA 19104 USA Univ Penn Philadelphia PA USA 19104 Epidemiol, Philadelphia, PA 19104 USA
Titolo Testata:
PSYCHIATRY RESEARCH-NEUROIMAGING
fascicolo: 2, volume: 106, anno: 2001,
pagine: 113 - 122
SICI:
0925-4927(20010410)106:2<113:TMORCB>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
BUDDHIST MEDITATION; FUNCTIONAL MRI; CORTEX; PET;
Keywords:
frontal cortex; thalamus; single photon emission computed tomography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Newberg, A Hosp Univ Penn, 110 Donner Bldg,3400 Spruce St, Philadelphia, PA 19104 USA Hosp Univ Penn 110 Donner Bldg,3400 Spruce St Philadelphia PA USA 19104
Citazione:
A. Newberg et al., "The measurement of regional cerebral blood flow during the complex cognitive task of meditation: a preliminary SPECT study", PSYCH RES-N, 106(2), 2001, pp. 113-122

Abstract

This study measured changes in regional cerebral blood flow (rCBF) during the complex cognitive task of meditation using single photon emission computed tomography, Eight experienced Tibetan Buddhist meditators were injectedat baseline with 7 mCi HMPAO and scanned 20 min later for 45 min. The subjects then meditated for 1 h at which time they were injected with 25 mCi HMPAO and scanned 20 min later for 30 min. Values were obtained for regions of interest in major brain structures and normalized to whole brain activity. The percentage change between meditation and baseline was compared. Correlations between structures were also determined. Significantly increased rCBF (P < 0.05) was observed in the cingulate gyrus, inferior and orbital frontal cortex, dorsolateral prefrontal cortex (DLPFC), and thalamus. The change in rCBF in the left DLPFC correlated negatively (P < 0.05) with that in the left superior parietal robe. Increased frontal rCBF may reflect focusedconcentration and thalamic increases overall increased cortical activity during meditation, The correlation between the DLPFC and the superior parietal robe may reflect an altered sense of space experienced during meditation, These results suggest a complex rCBF pattern during the task of meditation. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved,

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Documento generato il 21/01/20 alle ore 06:57:08