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level: Level 1 of Physical and Cognitive

Questions and Answers List

level questions: Level 1 of Physical and Cognitive

QuestionAnswer
What are attenuation recoursesRelates to an individuals ability to act on information
What are attenuation recoursesRelates to an individuals ability to act on information
What are attenuation recoursesRelates to an individuals ability to act on information
What are the different types of work the body can undergo?- Static work - Dynamic work
Define static workHolding muscles and skeletal system in place
Define dynamic workRepetitive movements
What are some important implications of physical work?- Loading needs to be minimised, especially for static postures - Cantilever effect - Body and physiology work best in 'neutral postures' - Risk is a combination of factors: Load size, repetition, breaks, workplace factors (workstation design)
What are some specific ergonomic concerns?- WRULDs - Manual handling - Display screen ergonomics
What are WRULDs?- Work Related Upper Limb Disorders - Can be caused by non-neutral wrist and forearm postures - Other factors include repetition, force, posture and vibration - Typically one month lost per case of WRULD
What are some organisational factors that cause WRULDs?Downsizing which results in: reduced breaks, reduced rest, reduced capacity for illness.
What are some preventions of WRULDs?- Tool redesign - Organisational redesign - Physical therapy
Who suffers the most from work-related back pain injuries?Nursing assistants
What are some key risks for the spine?- Bending - Rotating and twisting - High loads
What are the factors affecting a lift in manual handling?- Weight - Repetition - Asymmetric load - Grip - Floor surface - Distance - Teaming - Rests
What are anthropometrics?Data of varying body size and shape for a range of ages and ethnicities. Designers usually use the 5th and 95th percentile.
What are some environmental factors that may effect physical work?- Cold - Heat - Noise - Lighting - Fatigue
What are some characteristics of the perceptual system?Bottom up but also top down, where the worlds presents the user information but the user also has their own expectations.
What are the 4 types of decision making?- Rational - Heuristic - Naturalistic - No decision at all
Describe rational decision makingEither option is weighed against the other
Describe heuristic decision makingThe decision is biased/skewed
Describe naturalistic decision makingExperts speed up the decision making process whilst relying heavily on external information (example is police interceptors)
Describe no decision decision makingThe decision is made based off habit
What are attenuation recoursesRelates to an individuals ability to act on information
Describe the senses section of the cognition flowchartCan it be perceived? Is it loud enough? Bright enough?
Describe the perception section of the cognition flowchartCan we make sense of the scene? can we pick out the information?
Describe the Decision and Response selection section of the cognition flowchartCan we interpret enough to make a choice?
Describe the attention resources section of the cognition flowchartDo we have the capacity to interpret or act on the information?
Describe the main aspect of the multiple resource modelTasks become more difficult is multiple resources are being used at once. E.g singing a song and holding a conversation, deciding to drive out of a junction whilst listening to music.
Describe the working memory section of the cognition flowchartDo you have the capacity to keep track of all elements? do you have 'space' to plan?
What are some of the defining characteristics of working memory?Limited capacity Prone to dropping out Difficult to hold many variables chunking (breaking numbers up into chunks) Complexity increases when the same modalities are used We offload
Describe the long term memory section of the cognitive flowchartDo we have prior experience? Are our prior experiences influencing us?
What are some defining characteristics of long-term memory?Needed for anything that isn't in the world or in working memory very variable, can remeber some things in increadible detail, others not at all Plays a big role in priming all aspects of cognition
Describe the response execution section of the cognition flowchartDo you know what you are going to do next? Have you the physical ability to do it without error?