![]() When our awareness is centred on a particular object or event, it is called a focal point of attention.Attention has a focus where our maximum awareness is catered as well as a fringe where we are least aware of the stimuli.In Search, an observer searches for some specified subset of stimuli among a given set of stimuli.Concentration refers to focussing awareness on certain Stimuli while excluding others for the moment.Alertness refers to the activeness and readiness of an individual to deal with the stimuli that appear before him/her.There are 3 properties of attention described as follows. ![]() For example, when we enter a mall, we come across so many people, showrooms, cafes but we pay attention to the place where we want to go.The smallest difference in the value of two stimuli that is necessary to notice them as different is called Difference Threshold or Difference Limen(DL).Įxplore: Human Development Class 11 Notes Attentional Processes.The minimum value of a stimulus required to activate a given sensory system is termed as Absolute Threshold or Absolute Limen(AL). In order to get noticed a stimulus has to carry a minimum value or weight.The relationship between stimuli and the sensations they evoke is profoundly studied under a discipline called Psychophysics. In order to get noticed by a sensory receptor, a stimulus has to be of an optimal intensity or magnitude.YouTube: Psychology Class 11 & 12 Functional Limitations Of Sense Organs Perception is defined as the process by which we interpret the stimuli in our environment and give proper meaning to them.In the process of attention, we select a certain stimulus from a given set of stimuli.The initial experience of a stimulus or an object registered by our sense organs is called sensation.Sensation, Perception and Attention, Chapter 5 for Psychology Class 11 addresses three main processes that determine the way we gain knowledge of things happening around the world.Chapter 5 Psychology Class 11: Important Questions.Chapter 5 Psychology Class 11: Socio-Cultural Influence On Perception.Chapter 5 Psychology Class 11: Perception of Space, Depth and Distance. ![]()
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