| What are attenuation recourses | Relates to an individuals ability to act on information |
| What are attenuation recourses | Relates to an individuals ability to act on information |
| What are attenuation recourses | Relates 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 work | Holding muscles and skeletal system in place |
| Define dynamic work | Repetitive 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 making | Either option is weighed against the other |
| Describe heuristic decision making | The decision is biased/skewed |
| Describe naturalistic decision making | Experts speed up the decision making process whilst relying heavily on external information (example is police interceptors) |
| Describe no decision decision making | The decision is made based off habit |
| What are attenuation recourses | Relates to an individuals ability to act on information |
| Describe the senses section of the cognition flowchart | Can it be perceived? Is it loud enough? Bright enough? |
| Describe the perception section of the cognition flowchart | Can we make sense of the scene? can we pick out the information? |
| Describe the Decision and Response selection section of the cognition flowchart | Can we interpret enough to make a choice? |
| Describe the attention resources section of the cognition flowchart | Do we have the capacity to interpret or act on the information? |
| Describe the main aspect of the multiple resource model | Tasks 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 flowchart | Do 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 flowchart | Do 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 flowchart | Do you know what you are going to do next? Have you the physical ability to do it without error? |
