Blocking studies

Conclusion:

• A blocks X

Kolterman's bee studies

• Like blocking experiments
• Salience of X?

Computable statistical parameters

Bolles & Moot (1973)

1. 24 hr periodicity
2. Anticipation of regular meal time
3. Illumination condition
4. Deprivation state

• Ad-lib feeding; scheduled; ad-lib; deprivation

• All rats anticipate meals
• Controlled by temporal stimuli
• Light-fed do not run in dark
• Took a few days to learn timing

Edmonds & Adler (1977)

Design:

• Constant light level
• Two meals (24 & 25 hr intervals)

• Anticipation of feeding
• Feedings not signals for night running
• Subjective night, subjective day

Rosenwasser, Pelchat & Adler (1984)

Design:

• Ad-lib feeding; scheduled; ad-lib; deprivation
• Sudden light cycle shift
• Day-night goes to constant day

• Anticipation retained
• Endogenous clock entrained by light cycle
• Activity clock times anticipation

• Records subjective time
• Recording time
• Recenct weighting
• Statistical clustering rule
• Anticipation following reinstatement 
• Time of Training
• Can have single event training of anticipation

Design example:

• Shock chamber

Holloway & Wansley (1973)

Design:

• 24 hr feeding interval
• Record anticipation level

• Anticipation prior to feeding
• Anticipation 9-10 hr later 
• Precision of Internal Clock

Horter (1977)

Design:

• Lever press
• Window of food availability
• Punishment shock