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INTRODUCTION TO SENSATION, PERCEPTION AND ATTENTION Dr. Debdulal Dutta Roy, Ph.D. (Psy.) Psychology Research Unit INDIAN STATISTICAL INSTITUTE Kolkata – 700108 Lecture at the PATC,Rabindrabharati university, Kolkata
SENSATION
What is sensation ?  ,[object Object],[object Object]
Attributes of sensation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Brain and sensation
Visual organ
Auditory organ
Nose and tongue
Skin
Spinal cord
Thresholds ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Signal detection theory   ,[object Object]
Four conditions of signal detection
PERCEPTION
Have you heard any sound? Identify the sound and write
Perception ,[object Object],[object Object]
Figure and ground ,[object Object]
Closure ,[object Object]
Proximity: ,[object Object]
Similarity   ,[object Object]
Linear perspective ,[object Object]
Texture gradient ,[object Object]
Relative size ,[object Object]
Interposition ,[object Object]
ATTENTION
Attention  ,[object Object],[object Object],[object Object],[object Object]
Focus Active attention Moderate Very high Passive attention Non-specific specific
Focus in Vivo  ,[object Object]
Attention specificity  ,[object Object]
Attention is developed through play therapy  ,[object Object]
Selective attention changes perception
Attention difficulty can be controlled by movement therapy
Attention difficulty  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Disturbances in attention :  ,[object Object],[object Object],[object Object]
Signs of ADHD children  ,[object Object],[object Object],[object Object],[object Object]
Signs of  Attention deficit/Hyperactivity disorder: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hyperactivity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Impulsivity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types ,[object Object],[object Object],[object Object]

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Introduction to Sensation, Perception and Attention