Sample size and statistical power in [15O]H2O studies of human cognition

Journal of Cerebral Blood Flow and Metabolism

Volumn 16, Issue 5, 1996, Pages 804-816

  Andreasen, Nancy C ^a,b   Arndt, Stephan ^a   Cizadlo, Ted ^a   O'Leary, Daniel S ^a   Leonard Watkins, G ^a   Boles Ponto, Laura L ^a   Hichwa, Richard D ^a  

^a UNIVERSITY OF IOWA HOSPITALS AND CLINICS   (United States)

^b UNIVERSITY OF IOWA   (United States)

Author keywords

Cognition; Positron emission tomography; Sample size

Indexed keywords

OXYGEN 15;

ADULT; ARTICLE; BRAIN BLOOD FLOW; COGNITION; DATA ANALYSIS; FEMALE; HUMAN; HUMAN EXPERIMENT; IMAGE ANALYSIS; MALE; MEMORY; NUCLEAR MAGNETIC RESONANCE IMAGING; POSITRON EMISSION TOMOGRAPHY; PRIORITY JOURNAL; SAMPLE; STATISTICS;

EID: 0029774366     PISSN: 0271678X     EISSN: None     Source Type: Journal    
DOI: 10.1097/00004647-199609000-00005     Document Type: Article

References (18)

1. Andreasen NC, Cohen G, Harris G, Cizadlo T, Parkkinen J, Rezai K, Swayze VW (1992) Image processing for the study of brain structure and function: problems and programs. J Neuropsychol Clin Neurosci 4:125-133
2. Andreasen NC, Cizadlo T, Harris G, Swayze V, O'Leary DS, Cohen G, Ehrhardt J, Yuh WTC (1993) Voxel processing techniques for the antemortem study of neuroanatomy and neuropathology using magnetic resonance imaging. J Neuropsychol Clin Neurosci 5:121-130
3. Andreasen NC, O'Leary DS, Arndt S, Cizadlo T, Hurtig R, Rezai K, Watkins L, Ponto L, Hichwa R (1995) Short-term and long-term memory: a positron emission tomography study. Proc Natl Acad Sci USA 52:5111-5115
4. 2O PET cognitive activation studies. J Neuropsychol Clin Neurosci 7:155-168
5. Buckner RL, Petersen SE, Ojemann JG, Miezin FM, Squire LR, Raichle ME (1995) Functional anatomical studies of explicit and implicit memory retrieval tasks. J Neurosci 15:12-29
6. 2O PET studies: BRAINFIT. Proc SPIE 2168:423-430
7. Cohen J (1988) The t test for means. In: Statistical Power Analysis for the Behavioral Sciences. 2nd ed. Hillsdale, Lawrence Erlbaum, pp 19-27
8. Drevets WC, Burton H, Videen TO, Snyder AZ, Simpson JR Jr, Raichle ME (1995) Blood flow changes in human somatosensory cortex during anticipated stimulation. Nature 373:249-252
9. Fletcher PC, Frith CD, Grasby PM, Shallice T, Frackowiak RSJ, Dolan RJ (1995) Brain systems for encoding and retrieval of auditory-verbal memory. Brain 118:401-416
10. Fox PT (1991) Physiological ROI definition by image subtraction. J Cereb Blood Flow Metab 11:A79-A82
11. Friston KJ, Frith CD, Liddle PF, Frackowiak RS (1991) Investigating a network model of word generation with positron emission tomography. Proc R Soc Lond [Biol] 244:101-106
12. Friston KJ, Frith CD, Frackowiak RSJ (1993) Time-dependent changes in effective connectivity measured with PET. Hum Brain Map 1:69-79
13. Friston KJ, Worsley KJ, Frackowiak RSJ, Mazziotta JC, Evans AC (1994) Assessing the significance of focal activations using their spatial extent. Hum Brain Map 1:210-220
14. Friston KJ, Holmes AP, Worsley KJ, Poline J-P, Frith CD, Frackowiak RSJ (1995) Statistical parametric maps in functional imaging: a general linear approach. Hum Brain Map 2:189-210
15. 15O water PET studies. J Cereb Blood Flow Metab 14:423-430
16. Kapur S, Craik FIM, Tulving E, Wilson AA, Houle S, Brown GM (1994) Neuroanatomical correlates of encoding in episodic memory: levels of processing effect. Proc Natl Acad Sci USA 91:2008-2011
17. Levin DN, Pelizzari CA, Chen GTY, Chen CT, Cooper MD (1988) Retrospective geometric correlations of MR, CT, and PET images. Radiology 169:817-823
18. Middleton FA, Strick PL (1994) Anatomical evidence for cerebellar and basal ganglia involvement in higher cognitive function. Science 266:458-461