Psychology Sensation and Perception part 1

Any change in environment to which an organism responds.

• Stimulus

• Perception

• Sensation

• Threshold

A process by which our sensory receptors and nervous system receive stimulus energy

• Stimulus

• Perception

• Sensation

• Threshold

A process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events

• Stimulus

• Perception

• Sensation

• Threshold

Each of your senses receives information from the environment, converts it into neural signals in a process called:

• Stimulus

• Difference Threshold

• Transduction

• Absolute Threshold

We have prior knowledge about a stimulus.

• Top down processing

• Bottom up processing

• Selective Attention

• Absolute Threshold

We have no prior knowledge about a stimulus. Only sensory information

• Top down processing

• Bottom up processing

• Transduction

• Absolute Threshold

Minimum difference between two stimuli that a subject can detect

• Stimulus

• Difference Threshold

• Webers Law

• Absolute Threshold

Minimum stimulation needed to detect a particular stimulus

• Stimulus

• Difference Threshold

• Webers law

• Absolute Threshold

To perceive a difference between two stimuli, they must differ by a constant proportion

• Stimulus

• Difference Threshold

• Webers Law

• Absolute Threshold

Focus on one stimulus at a time (often at the expense of others)

• Top down processing

• Bottom up processing

• Selective Attention

• Absolute Threshold