Tag Archives: Learning portfolio 3

Examples

2 Nov

The address book in my phone reduces cognitive load as I don’t have to remember phone numbers. The numbers are also listed in alphabetical order which makes them easier to locate.

The button on my keychain makes it possible to unlock the doors to my car without having to physically use the key. This reduces kinematic load as I don’t have to do as much physically work but I still get the same result as normal keys.

The remote for my air conditioner reduces both kinematic and cognitive load. It reduces kinematic load because I don’t have to get up to work the air conditioner. It reduces the cognitive load because it has very simple buttons.

Question Three – Psychology

2 Nov

The study of psychology is an important factor when designing something. Psychology is the study of the human mind through analysis. Psychology can then help designers form a better understanding of what specific things are successful in a design.
Psychology can help by first forming a better understanding of the human mind and then with that knowledge designers can manipulate their design to suit the viewers needs. The idea of chunking wouldn’t have occurred without some deeper understanding of how brains work and what is needed in order to create a system that is easier and more productive, and therefore a more successful product.

Question Two – Chunking

2 Nov

Chunking is the technique of grouping information in order to make it easier to remember. The reason it is an important technique is because it decreases the cognitive load for the person trying to remember the information.
An example of chunking is, say someone had a list of fifteen different ingredients that they needed to remember. It would be difficult for them to simply remember the ingredient list off the top of their head. So, they can employ the technique of chunking. How to chunk is quite simple, firstly they would decide what categories they would like to make and then place each thing in the category that fits the most. Some example categories for an ingredient list could be solids, liquids, vegetables, ingredients for the base, ingredients for the sauce etc.
Chunking can also be seen in things other than lists. Such as a library, a library has a system in which the books are divided into fiction and non-fiction. The further chunked into sections depending on the genre. Then they are placed alphabetically in the order of the author’s last name. If a library had no chunking system it would be nearly impossible to find the book you.

Chunking can reduce cognitive load as it make it easier to remember things and easier to find what you are looking for. In some case chunking even reduces kinematic load, as chunking makes places such as libraries and shopping centres more organised and therefore people spend less time walking around lost.

Question One – Summary

2 Nov

Performance load is a term used to describe the amount of physical or mental energy used to perform a task. In modern society it is a common goal to keep the performance load to a minimum, so companies try to outdo each other in creating something with the lowest performance load. There are two types of performance load, cognitive and kinematic.
The amount of the load imposed on working memory is called the cognitive load. (Chen, I., Chang, C. 2009). In other words, cognitive load is the level of ‘mental energy’ required for processing information when completing a task. (Cooper, G. 2002).
Kinematic is the degree of physical activity in which it takes to perform a task.  (Lidwell, W., Holden, K., Butler, J. 2003). The aim is to keep the amount of the kinematic load to a minimum as it will be easier for the person using the product or program.

Works Cited 

Chen, I., Chang, C. (2009) Cognitive load theory: An empirical study of anxiety and task performance in language learning Retrieved from http://www.investigacion-psicopedagogica.org/revista/articulos/18/english/Art_18_348.pdf

Cooper, G. (2002). Cognitive load theory as an aid for instructional design. Retrieved from http://www.ascilite.org.au/ajet/ajet6/cooper.html.

Lidwell, W., Holden, K., & Butler, J. (2003). Aesthetic‐usability effect. In universal principles of design (pp. 46). Massachusetts: Rockport.