The present experiment examined the effects of the olfactory context on spontaneousalternation performance of young adult, female rats following septal lesions. Separate groups of rats were given either septal lesions (n=24) or control surgery (n=24), and then tested on the 8th postoperative day for spontaneous alternation across three trials. Half of the rats in each surgical group were tested...

THE OCCASIONAL FINDING of electrical alternation or alternans in patients with pericardial effusion has led to the theory that cardiac motion or rotation may be increased in the presence of excessive pericardial fluid.1-3 According to this theory, the pericardium together with the lungs and mediastinal structures normally exerts a restraining influence on the natural rotational movement of the ...

This chapter begins my three chapter discussion of the behavior of non-verbal predication in Irish. In this chapter, I discuss the distribution and syntactic behavior of two different copular constructions in Irish: theTá (Bí) and Is1 constructions. In chapter 5, I look in detail at a word order alternation within the Is class of constructions. The final section on Irish copular constructions w...

There has been a great deal of research on reinforcement learning in multirobot/agent environments during last decades1. A wide range of applications, such as forage robots (Mataric, 1997), soccer playing robots (Asada et al., 1996), prey-pursuing robots (Fujii et al., 1998) and so on, have been investigated. However, a straightforward application of the simple reinforcement learning method to ...

The mixture of bond-alternating and uniform S = 1/2 antiferromagnetic Heisenberg chains is investigated by the density matrix renormalization group method. The ground state magnetization curve is calculated and the exchange parameters are determined by fitting to the experimentally measured magnetization curve of CuCl2xBr2(1−x)(γ-pic)2 . The low field behavior of the magnetization curve and low...

Many organisms coordinate their group behavior in time. On a short timescale, group vocalizations, movements or visual displays can exhibit temporal interdependence. Synchronous behavior has received significantly more attention than all other forms of animal coordination. Antisynchrony (i.e., perfect alternation) is produced in nature, but only recently perceptual biases toward antisynchrony w...

T N a previous communication (3), the induction •*• of sleep, accompanied by typical brain wave patterns, during hypnosis was reported and described. The present communication concerns the brain wave changes associated with hypnotic modifications of behavior less profound than alternation of sleep and waking. The significance of these changes will be discussed in terms of the function of the br...

This study examined infants’ use of picture-location contingencies and spatiotemporal regularity in forming visual expectations. Ninety-six 3-month-olds watched an event sequence in which pictures appeared at 3 locations, either in regular leftcenter-right alternation or in a random center-side pattern. For half of the infants, the content of the central picture was predictive of the location o...

Recent research has witnessed a growing interest in determining how much usage frequency explains language patterns and language processing (Bybee, 2006; Pierrehumbert, 2001; Jurafsky, 2002). This paper focuses on the degree to which the relative frequency of verbs in syntactic frames (or valence alternations) may explain the acquisition of these frames (or these alternations). Valence alternat...

We show in an empirical study that not only did all cross-lingual alternations of verb frames across Chinese–English translations fall within the reordering capacity of Inversion Transduction Grammars, but more surprisingly, about 97% of the alternations were expressible by the far more restrictive Linear Transduction Grammars. Also, about 71% of the cross-lingual verb frame alternations turn o...