942 resultados para valence shells
Resumo:
Hieronymus Bosch; grisaille, oil on wood
Resumo:
Title on added t.p.: The cabinet of shells : being an introduction to the study of the science of conchology, after the system of Linnaeus.
Resumo:
Mode of access: Internet.
Resumo:
Read before the Society, Jan. 17, 1838.
Resumo:
Mode of access: Internet.
Resumo:
Paged continuously.
Resumo:
Poems.
Resumo:
Mode of access: Internet.
Resumo:
"Project no. 9782. Contract AF 49(638)-430... CU-23-62-AF-430-CE."
Resumo:
"Project no. 9782. Contract AF 49 (638)-430 ... CU-11-60-AF-430-CE."
Resumo:
"Contract Nonr 1866(02)."
Resumo:
Mode of access: Internet.
Resumo:
Several pages blank throughout.
Resumo:
The effects of unconditional stimulus (US) valence (aversive electro-tactile stimulus vs. nonaversive imperative stimulus of a RT task) and conditioning paradigm (delay vs. trace) on affective learning as indexed by verbal ratings of conditional stimulus (CS) pleasantness and blink startle modulation and on relational learning as indexed by electrodermal responses were investigated. Affective learning was not affected by the conditioning paradigm; however, electrodermal responses and blink latency shortening indicated delayed learning in the trace procedure. Changes in rated CS pleasantness were found with the aversive US, but not with the non-aversive US. Differential conditioning as indexed by electrodermal responses and startle modulation was found regardless of US valence. The finding of significant differential blink modulation and electrodermal responding in the absence of a change in rated CS pleasantness as a result of conditioning with a non-aversive US was replicated in a second experiment. These results seem to indicate that startle modulation during conditioning is mediated by the arousal level of the anticipated US, rather than by the valence of the CS. (C) 2002 Elsevier Science (USA). All rights reserved.