Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
What kinds of stimuli exist that can provide animals with information about their environment?
|
light sound
pressure/touch chemical heat magnetic field electricity |
|
|
What did Jacob von Uexkull (c. 1905) do?
|
Observed that animals perceive only limited portions of their environments
• Umwelt = the animal’s sensory-perceptual world Von Uexkull recognized that every specieshas its own unique sensory abilities |
|
|
Sensory abilities in each species are
determined by: |
Properties of the stimulus
Its physical properties (energy type, range, intensity, etc.) Effects of environment (may alter or degrade stimulus) Properties of the sensory system (ability to tune & filter incoming stimuli due to location on the body |
|
|
Receptor cells
|
Transduce various forms of physical
energy into activity of neurons: Physical energy Generator potential in receptor cell Action potential |
|
|
Transduction
|
the process of generating change
in electrical potential across neuron membrane in response to some form of physical energy |
