Time / Reaction / Notes

EXPERIMENT 2 – Pithed Frog

EXPERIMENT 3 – Pithed Frog

Time / Strength of Stimulus / Response / Notes

EXPERIMENT 6 – Double Pithed Frog

Nerve/Body Part Stimulated / Strength of Stimulus / Response / Notes

EXPERIMENT 1 – Intact Frog

Voluntary activity and equilibrium

Observations
Sitting on horizontal surface
Tilting surface slowly along anterior-posterior axis
Rotating about an axis extending upward from midbody

Righting Responses

Responses to mechanical, chemical, and electrical stimuli

Action / Observations
Touch the eye (cornea) w/ blunt object
Lightly pinch the skin of foot w/ forceps
Apply pledget soaked in acid to skin near midline of dorsal surface
Apply pledget soaked in acid near anus
Apply pledget soaked in acid to dorsal surface of the thigh
Apply electrical shock to foot w/ electric stimulator
Tickle the skin w/ sharp probe near midline on dorsal surface
Tickle the skin w/ sharp probe near anus
Swimming patterns in tank of water

EXPERIMENT 4 – Pithed Frog

Voluntary activity and equilibrium

Observations
Sitting on horizontal surface
Tilting surface slowly along anterior-posterior axis
Rotating about an axis extending upward from midbody

Righting Responses

Responses to mechanical, chemical, and electrical stimuli

Action / Observations
Touch the eye (cornea) w/ blunt object
Lightly pinch the skin of foot w/ forceps
Apply pledget soaked in acid to skin near midline of dorsal surface
Apply pledget soaked in acid near anus
Apply pledget soaked in acid to dorsal surface of the thigh
Apply electrical shock to foot w/ electric stimulator
Tickle the skin w/ sharp probe near midline on dorsal surface
Tickle the skin w/ sharp probe near anus
Swimming patterns in tank of water

EXPERIMENT 5 – Double Pithed Frog

Voluntary activity and equilibrium

Observations
Sitting on horizontal surface
Tilting surface slowly along anterior-posterior axis
Rotating about an axis extending upward from midbody

Righting Responses

Responses to mechanical, chemical, and electrical stimuli

Action / Observations
Touch the eye (cornea) w/ blunt object
Lightly pinch the skin of foot w/ forceps
Apply pledget soaked in acid to skin near midline of dorsal surface
Apply pledget soaked in acid near anus
Apply pledget soaked in acid to dorsal surface of the thigh
Apply electrical shock to foot w/ electric stimulator
Tickle the skin w/ sharp probe near midline on dorsal surface
Tickle the skin w/ sharp probe near anus
Swimming patterns in tank of water