> as lemmas

1846 E. A. Poe in U.S. Mag. & Democratic Rev. Apr. 268/1 We think in cycles, and may, from the frequency or infrequency of our revolutions about the various thought-centres, form an accurate estimate of the advance of our thought toward maturity.

1890 W. James Princ. Psychol. I. iv. 115 But our higher thought-centres knew hardly anything about the matter. Few men can tell off-hand which sock, shoe, or trousers-leg they put on first.

1904 J. McCabe tr. E. Haeckel Wonders of Life i. 13 In 1894 Flechsig showed that there are four central sense-regions..in the gray cortex of the brain, and four thought-centres (‘association-centres’, or phroneta).

1940 Eng. Jrnl. 29 38 Much of our work is grouped about thought-centers, and I think we have now reached the point that we do not consider particularly whether we are teaching history, geography, science, or safety.

2003 Philadelphia May 114/2 A conference room—a ‘thought center’, in Rosenbluth parlance—at 2401 Walnut Street.