Different difficulty manipulations interact differently with task emphasis: Evidence for multiple resources.

Studies of interference in serial verbal reactions.

1935 • 17,279 citations

Attention and Effort

1975 • 7,136 citations

On data-limited and resource-limited processes

1975 • 2,356 citations

On the economy of the human-processing system.

1979 • 1,599 citations

Human Information Processing

2021 • 561 citations

On the use of a concurrent memory load to measure attention and automaticity.

1979 • 337 citations

Measurement of Workload by Secondary Tasks

1979 • 176 citations

Human Perceptual-Motor Performance 1

2021 • 171 citations

Behavioral Measures of Aircrew Mental Workload

1979 • 132 citations

Control Theory Measures of Tracking as Indices of Attention Allocation Strategies

1977 • 62 citations

How is performance limited: Testing the notion of central capacity

1980 • 58 citations

Manipulating the Conditions of Training in Time-Sharing Performance

1977 • 34 citations

Development of the Letter-Shape Keyboard: A New Approach to the Design of Data Entry Devices

1979 • 14 citations