Effects of limited-target availability on schedule-induced attack

Area of Science:

• Behavioral science
• Animal behavior studies
• Ethology

Background:

• Schedule-induced behaviors are often studied in relation to reinforcement schedules.
• Aggression in pigeons can be elicited under specific experimental conditions.

Purpose of the Study:

• To investigate how the temporal availability of a target influences schedule-induced attack in pigeons.
• To determine if limiting target access affects the rate and pattern of aggressive responses.

Main Methods:

• Pigeons were exposed to a fixed-time food schedule.
• A conspecific target was presented under three conditions: continuous, random 30-sec intervals, or final 90 sec of the interfood interval.
• Attack responses towards the target were recorded and analyzed.

Main Results:

• Attack rates varied based on target availability, with limited availability potentially increasing attack.
• When targets were available in the latter half of the interval, attack decreased over time.
• Some pigeons maintained high attack rates even when target access occurred later in the interval.

Conclusions:

• Limiting target availability can enhance schedule-induced attack in pigeons.
• Aggressive behavior is not solely tied to immediate post-feeding periods and can be modulated by temporal factors.