Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Robert L. Welker"'
Autor:
Robert L. Welker
Publikováno v:
The Psychoanalytic Quarterly. 74:767-799
Instead of asking why psychoanalysis has lost its central position in mental health, one might marvel at its longevity when considering that psychoanalysts have not attained agreement about basic methods for observing unconscious mentation, either th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d44c6a7c0f5c58047b1b266e74110a59
https://doi.org/10.1002/j.2167-4086.2005.tb00226.x
https://doi.org/10.1002/j.2167-4086.2005.tb00226.x
Publikováno v:
Journal of Comparative and Physiological Psychology. 86:549-562
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1e4fd1f04548d0f1e63366c791970c3
https://doi.org/10.1037/h0036172
https://doi.org/10.1037/h0036172
Publikováno v:
Animal Learning & Behavior. 5:236-242
In a three-group experiment, one group of rats (response-contingent) learned to contact a food cup for Noyes food pellets delivered according to a fixed-ratio schedule of reinforcement. Subjects in another group received a response-independent pellet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a92315aecd88bb92866e9572f079af6
https://doi.org/10.3758/bf03209233
https://doi.org/10.3758/bf03209233
Publikováno v:
Bulletin of the Psychonomic Society. 5:205-208
Ten pigeons were given extended training with VI 60-sec reinforcement contingent upon keypecking at a 555-nm stimulus in an otherwise darkened chamber with white noise present. After attainment of response rate stability, 30 sessions of successive di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ad0e0f38ddda3ef295740f5abdade1e
https://doi.org/10.3758/bf03337604
https://doi.org/10.3758/bf03337604
Autor:
Robert L. Welker
Publikováno v:
Journal of Experimental Psychology: Human Perception and Performance. 8:435-447
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::012dd750c16891a78940d7b283ef1346
https://doi.org/10.1037/0096-1523.8.3.435
https://doi.org/10.1037/0096-1523.8.3.435
Publikováno v:
Physiology & Behavior. 18:639-645
Rats exposed to irregular meal durations and irregular inter-meal intervals during protracted food deprivation; ate less food, lost more weight and exhibited more glandular-stomach lesions and deaths than rats receiving regular periods of feeding and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::833c50ed5c3e24f9661a293fc5cacda8
https://doi.org/10.1016/0031-9384(77)90062-2
https://doi.org/10.1016/0031-9384(77)90062-2
Autor:
Robert L. Welker
Publikováno v:
Learning and Motivation. 7:394-405
Deficits in learning to escape from electric shock following exposure to response-independent preshocks have frequently been reported and have been referred to as learned helplessness. Experiments were conducted in order to determine whether a phenom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f24f734c58878e9819fb0ddc7be2e44
https://doi.org/10.1016/0023-9690(76)90045-x
https://doi.org/10.1016/0023-9690(76)90045-x
Autor:
Robert L. Welker, Kathleen McAuley
Publikováno v:
Bulletin of the Psychonomic Society. 12:453-456
Rats were trained to press a lever for food according to a variable-interval (VI) 60-sec schedule of reinforcement. They were then divided into four groups and received 10 sessions of either extinction or response-independent pellets delivered accord
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de52c2ec6c4e7fdd625b52d3ac2f62e2
https://doi.org/10.3758/bf03329735
https://doi.org/10.3758/bf03329735
Autor:
Robert L. Welker, Kimbal L. Wheatley
Publikováno v:
Learning and Motivation. 8:247-262
Using a conditioned suppression procedure, it was demonstrated that suppression of responding was substantially enhanced when the CS signaling the occurrence of shock was an increment in luminance level (bright CS), relative to an equivalent decremen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe2093993daa7a6d6fb2ce4e45563be6
https://doi.org/10.1016/0023-9690(77)90009-1
https://doi.org/10.1016/0023-9690(77)90009-1
Autor:
Kathleen McAuley, Robert L. Welker
Publikováno v:
Animal Learning & Behavior. 6:451-457
Thirty rats received 10 sessions of baseline training in which leverpressing was reinforced according to a variable-interval (VI) 60-sec schedule. Twenty-four of the subjects were then assigned to one of four groups that received five sessions of ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dbd75fa49b6a37bf89e86e234ce9441
https://doi.org/10.3758/bf03209643
https://doi.org/10.3758/bf03209643