The Effects of Precise Constant and Cyclic Environments on Shell Quality and Other Lay Performance Factors With Leghorn Pullets

P.C. Miller; M.L. Sunde

doi:10.3382/ps.0540036

The Effects of Precise Constant and Cyclic Environments on Shell Quality and Other Lay Performance Factors With Leghorn Pullets

Poultry Science ◽

10.3382/ps.0540036 ◽

1975 ◽

Vol 54 (1) ◽

pp. 36-46 ◽

Cited By ~ 43

Author(s):

P.C. Miller ◽

M.L. Sunde

Keyword(s):

Shell Quality ◽

Performance Factors ◽

Precise Constant

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Linguistic Competence in Aphasia

Perspectives on Augmentative and Alternative Communication ◽

10.1044/aac17.3.87 ◽

2008 ◽

Vol 17 (3) ◽

pp. 87-92

Author(s):

Leonard L. LaPointe

Keyword(s):

Language Use ◽

Linguistic Competence ◽

Careful Study ◽

Feral Children ◽

Performance Factors ◽

Performance Loss ◽

Linguistic Rules ◽

Communication Goals ◽

Aphasia Treatment ◽

And Performance

Abstract Loss of implicit linguistic competence assumes a loss of linguistic rules, necessary linguistic computations, or representations. In aphasia, the inherent neurological damage is frequently assumed by some to be a loss of implicit linguistic competence that has damaged or wiped out neural centers or pathways that are necessary for maintenance of the language rules and representations needed to communicate. Not everyone agrees with this view of language use in aphasia. The measurement of implicit language competence, although apparently necessary and satisfying for theoretic linguistics, is complexly interwoven with performance factors. Transience, stimulability, and variability in aphasia language use provide evidence for an access deficit model that supports performance loss. Advances in understanding linguistic competence and performance may be informed by careful study of bilingual language acquisition and loss, the language of savants, the language of feral children, and advances in neuroimaging. Social models of aphasia treatment, coupled with an access deficit view of aphasia, can salve our restless minds and allow pursuit of maximum interactive communication goals even without a comfortable explanation of implicit linguistic competence in aphasia.

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Gender Differences in the Mental Rotations Test (MRT) Are Not Due to Task Complexity

Journal of Individual Differences ◽

10.1027/1614-0001.29.3.130 ◽

2008 ◽

Vol 29 (3) ◽

pp. 130-133 ◽

Cited By ~ 17

Author(s):

Corinna Titze ◽

Martin Heil ◽

Petra Jansen

Keyword(s):

Gender Differences ◽

Mental Rotation ◽

Task Complexity ◽

Time Constraints ◽

Medium Effects ◽

Performance Factors ◽

Mental Rotations ◽

Sufficient Power ◽

Forced Choice Tasks ◽

Choice Tasks

Gender differences are one of the main topics in mental rotation research. This paper focuses on the influence of the performance factor task complexity by using two versions of the Mental Rotations Test (MRT). Some 300 participants completed the test without time constraints, either in the regular version or with a complexity reducing template creating successive two-alternative forced-choice tasks. Results showed that the complexity manipulation did not affect the gender differences at all. These results were supported by a sufficient power to detect medium effects. Although performance factors seem to play a role in solving mental rotation problems, we conclude that the variation of task complexity as realized in the present study did not.

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Command and Control

Aviation Psychology and Applied Human Factors ◽

10.1027/2192-0923/a000130 ◽

2018 ◽

Vol 8 (1) ◽

pp. 1-10

Author(s):

Stuart D. H. Beveridge ◽

Simon T. Henderson ◽

Wayne L. Martin ◽

Joleah B. Lamb

Keyword(s):

Air Transport ◽

Flight Safety ◽

Flight Crew ◽

Systematic Review Methodology ◽

Role Assignment ◽

Performance Factors ◽

Policy Review ◽

Reported Effect ◽

And Control ◽

Research And Policy

Abstract. Compared with other team settings, flight crew in air transport present a unique situation where the leader or supervisor regularly engages in active control. When the captain is assigned cognitively demanding pilot flying duties, the subordinate and often less experienced first officer must perform equally crucial monitoring and support duties. Using a systematic review methodology, this study reviews the reported effect of crew role assignment on flight safety outcomes. Our review identified 18 relevant studies and suggests crew performance factors linked to flight safety are affected by crew role assignment. Findings suggest a greater number of inherent obstacles may exist for optimal crew performance with the captain as pilot flying, raising the need for further specific research and policy review in this area.

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