Table 2.
Brain region | Food control (N = 4) | 1 Day abstinence (N = 4) | 30 Days abstinence (N = 4) |
---|---|---|---|
Cocaine self-administration | |||
Striatum | |||
Rostral precommissural striatum | |||
Caudate-dorsomedial | 56 ± 4.8 | 47 ± 1.5 | 42 ± 2.4* |
Caudate-dorsolateral | 58 ± 4.1 | 49 ± 2.0 | 43 ± 1.8* |
Caudate-ventromedial | 50 ± 4.0 | 42 ± 1.8 | 39 ± 1.8* |
Putamen-dorsal | 59 ± 5.7 | 51 ± 2.1 | 46 ± 4.5 |
Putamen-ventral | 57 ± 5.3 | 48 ± 2.1 | 45 ± 4.2 |
Rostral nucleus accumbens | 41 ± 4.6 | 37 ± 1.9 | 33 ± 1.7 |
Caudal precommissural striatum | |||
Caudate-dorsomedial | 62 ± 4.6 | 54 ± 3.5 | 44 ± 3.0* |
Caudate-dorsolateral | 60 ± 4.0 | 54 ± 2.4 | 43 ± 3.2* |
Caudate-ventromedial | 49 ± 0.7 | 44 ± 3.4 | 39 ± 2.4 |
Putamen-dorsal | 63 ± 3.8 | 57 ± 2.4 | 47 ± 4.1* |
Putamen-ventral | 58 ± 5.5 | 51 ± 1.8 | 42 ± 3.3* |
Nucleus accumbens-core | 42 ± 4.5 | 39 ± 1.7 | 34 ± 1.8 |
Nucleus accumbens-shell | 38 ± 3.2 | 35 ± 2.2 | 31 ± 2.3 |
Post-commissural striatum | |||
Caudate | 50 ± 1.8 | 49 ± 5.7 | 49 ± 5.7 |
Putamen | 54 ± 1.4 | 51 ± 5.8 | 51 ± 5.8 |
Basal ganglia | |||
Ventral tegmental area | 26 ± 0.7 | 24 ± 1.8 | 20 ± 3.3* |
Globus pallidus-internal | 37 ± 0.9 | 33 ± 1.2 | 30 ± 1.0* |
Globus pallidus-external | 36 ± 1.3 | 32 ± 1.0 | 29 ± 1.0* |
Subthalamus | 63 ± 1.9 | 50 ± 2.5* | 51 ± 0.9* |
Substantia nigra pars compacta | 50 ± 2.3 | 41 ± 2.7 | 38 ± 2.0* |
Substantia nigra pars reticulata | 43 ± 1.0 | 38 ± 2.0 | 35 ± 1.5* |
Frontal cortex | |||
Frontal pole (area 10) | 45.± 1.9 | 37 ± 3.2 | 37 ± 3.2 |
Medial prefrontal (areas 25,14,32) | 42 ± 3.0 | 40 ± 1.9 | 37 ± 2.5 |
Orbital prefrontal (areas 11,12,13) | 53 ± 2.1 | 46 ± 2.3 | 42 ± 1.8* |
Dorsolateral prefrontal (areas 45,46) | 54 ± 1.9 | 49 ± 1.4 | 45 ± 2.3* |
Anterior cingulate (area 24) | 49 ± 3.0 | 45 ± 2.4 | 42 ± 2.8 |
Motor (area 4) | 43 ± 1.9 | 48 ± 1.4 | 39 ± 2.7 |
Temporal and parietal cortex | |||
Temporal pole | 41 ± 4.4 | 36 ± 2.4 | 35 ± 5.3 |
Insula | 53 ± 3.6 | 46 ± 1.3 | 43 ± 5.1 |
Temporal gyrus (areas STG,TE,TF) | 54 ± 3.8 | 46 ± 1.3 | 47 ± 3.4 |
Entorhinal | 43 ± 1.6 | 36 ± 2.1 | 36 ± 1.5* |
Posterior cingulate (area 23, 31) | 58 ± 3.5 | 49 ± 1.9 | 44 ± 1.5* |
Inferior parietal (area PE, PO) | 58 ± 2.1 | 53 ± 3.9 | 48 ± 1.1* |
Medial parietal (area PG) | 52 ± 1.9 | 56 ± 3.3 | 47 ± 2.2 |
Thalamus | |||
Midline | 64 ± 1.1 | 52 ± 3.8* | 48 ± 2.9* |
Mediodorsal | 60 ± 0.8 | 48 ± 2.0* | 46 ± 2.8* |
Ventral anterior | 47 ± 2.0 | 40 ± 1.4 | 36 ± 3.0* |
Parafascicular/centromedian | 50 ± 2.3 | 40 ± 2.1* | 39 ± 2.4* |
Ventrolateral | 37 ± 1.2 | 39 ± 1.2 | 36 ± 4.3 |
Lateral geniculate | 43 ± 1.6 | 39 ± 2.4 | 39 ± 2.2 |
Medial geniculate | 72 ± 3.1 | 69 ± 6.3 | 66 ± 2.3 |
Habenula | 43 ± 1.8 | 48 ± 7.9 | 38 ± 1.8 |
Amygdala | |||
Lateral | 39 ± 4.4 | 34 ± 1.9 | 36 ± 1.2 |
Central | 25 ± 2.7 | 23 ± 1.2 | 25 ± 0.2 |
Medial | 29 ± 2.7 | 27 ± 2.0 | 28 ± 0.7 |
Basolateral | 38 ± 4.3 | 36 ± 2.3 | 37 ± 1.3 |
Hypothalamus | |||
Preoptic area | 32 ± 3.2 | 31 ± 2.7 | 28 ± 2.5 |
Lateral | 33 ± 3.5 | 30 ± 0.9 | 30 ± 1.2 |
Medial | 33 ± 3.6 | 31 ± 1.1 | 31 ± 1.3 |
Paraventricular | 32 ± 5.7 | 31 ± 0.8 | 32 ± 3.4 |
Limbic-associated | |||
Bed nucleus of stria terminalis | 28 ± 2.6 | 28 ± 2.6 | 26 ± 1.5 |
Lateral septum | 27 ± 3.5 | 26 ± 1.5 | 26 ± 2.2 |
Extended amygdala | 29 ± 1.9 | 28 ± 2.2 | 26 ± 1.6 |
Hippocampus (CA1) | 43 ± 3.3 | 37 ± 2.7 | 34 ± 0.9 |
Hippocampus (CA3) | 40 ± 3.1 | 33 ± 0.2 | 30 ± 0.9* |
Hippocampus (dentate gyrus) | 47 ± 3.0 | 42 ± 2.5 | 38 ± 1.1 |
Subiculum | 50 ± 3.8 | 41 ± 2.1 | 39 ± 0.4* |
*p < 0.05, Bonferroni t-tests for multiple comparisons following two-way analysis of variance (treatment group X brain region, with brain region considered a repeated measure). Multiple comparisons were carried out within individual neuroanatomical groupings and testing only where there were significant group effects, e.g controls vs. 30 day abstinence.
aData represent rates of local cerebral glucose utilization (μmol/100 g/min) expressed as means ± S.E.M.