{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}


5 relative numerosity discrimination from honig

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: with patterns composed of 16 dots Adapted from Honig & Stewart, 1989. 5 Relative numerosity discrimination from Honig & Stewart, 1989 Relative numerosity generalization gradients for a group of pigeons who were tested with patterns containing either 16 or 36 elements Counting & Absolute number Counting Responses Rumbaugh & Washburn (1993) -  - Trained a chimpanzee to move a cursor with a joystick - Arabic numeral presented (1, 2, 3 etc.) - Arrays of rectangles presented: chimp required to delete the number of rectangles = Arabic number, which it did (eventually!) Counting Sequential Stimuli Meck & Church (1983) Rats rewarded for pressing: - Left lever after 2 pulses of noise - Right lever after 8 pulses of noise - Discrimination solved with ease Breukelaar & Dalrymple-Alford (1998) - Replicated Meck & Church’s experiment - Varied the duration of bursts from trial to trial - Problem could not be solved by timing 7 Counting Control for time (duration) Control for number •  Rats are sensitive to time and number Are time and number coded together? Counting: Time vs number Case 1 Case 2 Conditional time/number discrimination with flashing colored keys: •  if Green, then peck left for 2 flashes, right for 8 flashes, regardless of duration •  if Red, then peck left for 2 sec, right for 8 sec, regardless of number of flashes •  Test with 2-8 pulses over 4 sec (counting), or 4 pulses lasting 2-8 sec (timing) Ti...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online